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why do we need oxygen ? you , like many other organisms , need oxygen to live . as you know if you ’ ve ever tried to hold your breath for too long , lack of oxygen can make you feel dizzy or even black out , and prolonged lack of oxygen can even cause death . but have you ever wondered why that ’ s the case , or what ... | electrons from fadh $ _2 $ , which enter the chain at a later stage , drive pumping of only 6 h $ ^+ $ , leading to production of about 1.5 atp . with this information , we can do a little inventory for the breakdown of one molecule of glucose : stage|direct products ( net ) |ultimate atp yield ( net ) -|-|- glycolysis... | if a drug made the membrane permeable to nadh how would this affect the production of atp ? |
why do we need oxygen ? you , like many other organisms , need oxygen to live . as you know if you ’ ve ever tried to hold your breath for too long , lack of oxygen can make you feel dizzy or even black out , and prolonged lack of oxygen can even cause death . but have you ever wondered why that ’ s the case , or what ... | fadh $ _2 $ is not as good at donating electrons as nadh ( that is , its electrons are at a lower energy level ) , so it can not transfer its electrons to complex i . instead , it feeds them into the transport chain through complex ii , which does not pump protons across the membrane . because of this `` bypass , '' ea... | would it have a similar effect that the leaky membrane had on the protons ? |
why do we need oxygen ? you , like many other organisms , need oxygen to live . as you know if you ’ ve ever tried to hold your breath for too long , lack of oxygen can make you feel dizzy or even black out , and prolonged lack of oxygen can even cause death . but have you ever wondered why that ’ s the case , or what ... | in prokaryotes , the electron transport chain components are found in the plasma membrane . as the electrons travel through the chain , they go from a higher to a lower energy level , moving from less electron-hungry to more electron-hungry molecules . energy is released in these “ downhill ” electron transfers , and s... | due to i think less electron hungry means less energy , is it right ? |
why do we need oxygen ? you , like many other organisms , need oxygen to live . as you know if you ’ ve ever tried to hold your breath for too long , lack of oxygen can make you feel dizzy or even black out , and prolonged lack of oxygen can even cause death . but have you ever wondered why that ’ s the case , or what ... | as electrons move through complex iii , more h $ ^+ $ ions are pumped across the membrane , and the electrons are ultimately delivered to another mobile carrier called cytochrome c ( cyt c ) . cyt c carries the electrons to complex iv , where a final batch of h $ ^+ $ ions is pumped across the membrane . complex iv pas... | ( i imagine doors at western movies being bust open by h+ ? |
why do we need oxygen ? you , like many other organisms , need oxygen to live . as you know if you ’ ve ever tried to hold your breath for too long , lack of oxygen can make you feel dizzy or even black out , and prolonged lack of oxygen can even cause death . but have you ever wondered why that ’ s the case , or what ... | as h $ ^+ $ ions flow down their gradient and back into the matrix , they pass through an enzyme called atp synthase , which harnesses the flow of protons to synthesize atp . we 'll look more closely at both the electron transport chain and chemiosmosis in the sections below . the electron transport chain the electron ... | in the electron transport chain , where do the protons that are being pumped out of the matrix come from ? |
why do we need oxygen ? you , like many other organisms , need oxygen to live . as you know if you ’ ve ever tried to hold your breath for too long , lack of oxygen can make you feel dizzy or even black out , and prolonged lack of oxygen can even cause death . but have you ever wondered why that ’ s the case , or what ... | fadh $ _2 $ is not as good at donating electrons as nadh ( that is , its electrons are at a lower energy level ) , so it can not transfer its electrons to complex i . instead , it feeds them into the transport chain through complex ii , which does not pump protons across the membrane . because of this `` bypass , '' ea... | why is complex ii of the etc unable to pump protons like the other complexes ? |
why do we need oxygen ? you , like many other organisms , need oxygen to live . as you know if you ’ ve ever tried to hold your breath for too long , lack of oxygen can make you feel dizzy or even black out , and prolonged lack of oxygen can even cause death . but have you ever wondered why that ’ s the case , or what ... | this is important because the oxidized forms of these electron carriers are used in glycolysis and the citric acid cycle and must be available to keep these processes running . makes a proton gradient . the transport chain builds a proton gradient across the inner mitochondrial membrane , with a higher concentration of... | what does the word gradient means ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | i ’ ve always been interested in computers ( i remember playing with the logo turtle drawing program when i was about 7 ) , but wasn ’ t really comfortable with the idea of having a career “ on the internet ” until fairly recently . i got my degree in civil engineering , but was frustrated in the working world by the r... | what were your greatest difficulties both in learning how to code and getting a job in the programming field since your academic background was in civil engineering ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | when i decided to learn how to program , i looked for programs where ever i could find them . i started by taking an edx course in python , and also used tutorials through codecademy , khan academy , learn code the hard way , and others . i then moved into learning front end development , which i learned primarily thro... | is python hard for you ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | hi , i 'm allyson lubimir ! what do you work on ? | do you think c++ is important ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | plus , i work remotely , so i can even be in my pajamas while i answer their questions ! here 's a screenshot of my support queue from today : on the bug hunting-and-fixing side , i spend time reproducing bugs sent in by customers , and frequently going into their databases to clean up rogue entries . i also help custo... | does your company use its own product to track bugs in its product ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | what do you do when you 're not programming ? when i ’ m not programming , i like to snuggle with my cats ( and my husband too , i suppose ) ! i also enjoy playing board games and knitting . | what is the name of your cats ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | hi , i 'm allyson lubimir ! what do you work on ? | why are some words blury and not visible in the pictures ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! | what is a support engineer ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | we work hard to be as open and honest as possible with our customers , and i ’ m part of the front line to make sure that happens . how did you learn to program ? i ’ ve always been interested in computers ( i remember playing with the logo turtle drawing program when i was about 7 ) , but wasn ’ t really comfortable w... | how to program an arduino ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! | i want to become a software developer , do i need to study web design ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | what do you do when you 're not programming ? when i ’ m not programming , i like to snuggle with my cats ( and my husband too , i suppose ) ! i also enjoy playing board games and knitting . | 1. love the cats 2. why is it blurry on your case thing and 3. will there more of your cat photos ? |
hi , i 'm allyson lubimir ! what do you work on ? i am a support engineer at fog creek software . we make several products aimed at software developers , to help make their lives easier so that they can focus on programming ! i work on fogbugz ( a bug tracking program ) and kiln ( a software version control and code tr... | i spend my days answering emails from customers about using our programs , like bug reports and feature requests . since i know the programs that i support inside and out , i can also offer our customers great ideas for how they can improve their workflow . plus , i work remotely , so i can even be in my pajamas while ... | how do i know what html is ? |
when we first learned about the correlation coefficient , $ r $ , we focused on what it meant rather than how to calculate it , since the computations are lengthy and computers usually take care of them for us . we 'll do the same with $ r^2 $ and concentrate on how to interpret what it means . in a way , $ r^2 $ measu... | without using regression on the $ x $ variable , our most reasonable estimate would be to simply predict the average of the $ y $ values . here 's an example , where the prediction line is simply the mean of the $ y $ data : notice that this line does n't seem to fit the data very well . one way to measure the fit of t... | which parameter is then better to evaluate the fit of a line to a data set ? |
when we first learned about the correlation coefficient , $ r $ , we focused on what it meant rather than how to calculate it , since the computations are lengthy and computers usually take care of them for us . we 'll do the same with $ r^2 $ and concentrate on how to interpret what it means . in a way , $ r^2 $ measu... | r-squared tells us what percent of the prediction error in the $ y $ variable is eliminated when we use least-squares regression on the $ x $ variable . as a result , $ r^2 $ is also called the coefficient of determination . many formal definitions say that $ r^2 $ tells us what percent of the variability in the $ y $ ... | the correlation coefficient ( r ) or the coefficient of determination ( r2 ) ? |
when we first learned about the correlation coefficient , $ r $ , we focused on what it meant rather than how to calculate it , since the computations are lengthy and computers usually take care of them for us . we 'll do the same with $ r^2 $ and concentrate on how to interpret what it means . in a way , $ r^2 $ measu... | one way to measure the fit of the line is to calculate the sum of the squared residuals—this gives us an overall sense of how much prediction error a given model has . so without least-squares regression , our sum of squares is $ 41.1879 $ would using least-squares regression reduce the amount of prediction error ? if ... | how we predict sum of squares in the regression line ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | how fast is the club traveling after it has hit the ball ? exercise 2b : what is the average force on the club due to the golf ball in the previous problem ? exercise 3 : suppose a 100 kg football player is at rest on an ice rink . | in the exercise 2b when we calculate the force , why is it the mass of the ball in the equation ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | exercise 1a : the recoil of a cannon is probably familiar to anyone who has watched pirate movies . this is a classic problem in momentum conservation . consider a wheeled , 500 kg cannon firing a 2 kg cannonball horizontally from a ship . | what types of situations does conservation of momentum apply to ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | what is the recoil speed in this case ? where did the additional momentum go ? exercise 2a : a golf club head of mass $ m_c=0.25~\mathrm { kg } $ is swung and collides with a stationary golf ball of mass $ m_b=0.05~\mathrm { kg } $ . | where does the momentum go ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | at what speed does the cannon recoil as a result ? exercise 1b : suppose the cannon was raised to fire at an angle $ \alpha=30^\circ $ to the horizontal . what is the recoil speed in this case ? | in exercise 1b , does vb mean the velocity of the bullet ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | the collision is so forceful that it breaks one of the pucks into two pieces . kinetic energy is likely not conserved in the collision , but momentum will be conserved . provided we know the masses and velocities of all the pieces just after the collision , we can still use conservation of momentum to understand the si... | why the kinetic energy in a collision ( which one thing is broken into pieces ) is not conserved ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | it remains in contact with the ball for $ t=0.5~\mathrm { ms } $ ; after that , the ball is traveling at a speed of $ v_b=40~\mathrm { m/s } $ . how fast is the club traveling after it has hit the ball ? exercise 2b : what is the average force on the club due to the golf ball in the previous problem ? exercise 3 : supp... | in question 2b how did we know the velocity of the club was 8 m/s ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | this can be equivalently expressed as the sum of the change in momenta being zero . $ \begin { align } m_\mathrm { a } \cdot \delta v_\mathrm { a } & amp ; = -m_\mathrm { b } \cdot \delta v_\mathrm { b } \ m_\mathrm { a } \cdot \delta v_\mathrm { a } + m_\mathrm { b } \cdot \delta v_\mathrm { b } & amp ; = 0\end { alig... | in exercise 2b , why do n't we use delta ( p ) = f x delta ( t ) for the club ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | in mechanics , there are three fundamental quantities which are conserved . these are momentum , energy , and angular momentum . conservation of momentum is mostly used for describing collisions between objects . | hi in exercise 1b , why the vector used was velocity and not momentum is n't that what 's being passed to the cannon ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | however , the time must be equal for both balls . $ t_\mathrm { ab } = t_\mathrm { ba } $ consequently , the impulse experienced by objects a and b must be equal in magnitude and opposite in direction . $ f_\mathrm { ab } \cdot t_\mathrm { ab } = – f_\mathrm { ba } \cdot t_\mathrm { ba } $ if we recall that impulse is ... | scalar is used but horizontal has magnitude and direction ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . | why us the scalar quantity ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | in mechanics , there are three fundamental quantities which are conserved . these are momentum , energy , and angular momentum . conservation of momentum is mostly used for describing collisions between objects . | if two cars collide head on with equal amounts of momentum in opposite directions , and the cars come to a stop , how is momentum conserved ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | what kind of problems can we solve using momentum conservation ? exercise 1a : the recoil of a cannon is probably familiar to anyone who has watched pirate movies . this is a classic problem in momentum conservation . | if exercise 1a and 1b ask us to find the speed of the recoil , why can the answer be negative ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | consider the case of a bouncy ball of mass $ m $ traveling at velocity $ v $ towards a brick wall . it hits the wall and bounces back with velocity $ -v $ . the wall is well attached to the earth and does n't move , yet the momentum of the ball has changed by $ 2mv $ since velocity went from positive to negative . | i understand that for velocity , it means that the recoil velocity is in the opposite direction from the cannonball 's velocity vector , but i feel like speed is not `` allowed '' to be negative ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | $ \begin { align } m_\mathrm { a } \cdot \delta v_\mathrm { a } & amp ; = -m_\mathrm { b } \cdot \delta v_\mathrm { b } \ m_\mathrm { a } \cdot \delta v_\mathrm { a } + m_\mathrm { b } \cdot \delta v_\mathrm { b } & amp ; = 0\end { align } $ what is interesting about conservation of momentum ? there are at least four t... | what would be the acceleration if the same force is applied when these bodies are tied together ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | exercise 1a : the recoil of a cannon is probably familiar to anyone who has watched pirate movies . this is a classic problem in momentum conservation . consider a wheeled , 500 kg cannon firing a 2 kg cannonball horizontally from a ship . | at the end of the `` what is the principal of conservation of momentum '' section , should the wording `` the principal of conservation of energy says '' be `` the principal of conservation of momentum says '' ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | exercise 2b : what is the average force on the club due to the golf ball in the previous problem ? exercise 3 : suppose a 100 kg football player is at rest on an ice rink . a friend throws a 0.4 kg football towards him at a speed of 25 m/s . | in exercise 2 you use the equation without initial and final , but in exercise 3 you have to ... how do you know when to use the specific m x v equations ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | exercise 2b : what is the average force on the club due to the golf ball in the previous problem ? exercise 3 : suppose a 100 kg football player is at rest on an ice rink . a friend throws a 0.4 kg football towards him at a speed of 25 m/s . | in exercise 3 while writing the same of momenta is vpi is taken as zero ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | in mechanics , there are three fundamental quantities which are conserved . these are momentum , energy , and angular momentum . conservation of momentum is mostly used for describing collisions between objects . | from the article above , so the total momentum of the two objects when colliding would always be 0 ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | it is often easy to measure and keep track of momentum , even with complicated systems of many objects . consider a collision between two ice hockey pucks . the collision is so forceful that it breaks one of the pucks into two pieces . | dose it suppose to consider the weight of canon as 500x2 = 1,000kg ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | in mechanics , there are three fundamental quantities which are conserved . these are momentum , energy , and angular momentum . conservation of momentum is mostly used for describing collisions between objects . | but when slapping a face there is transfer of momentum ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | the length of time for which the objects are in contact— $ t_\mathrm { ab } $ and $ t_\mathrm { ba } $ —depends on the specifics of the situation . for example , it would be longer for two squishy balls than for two billiard balls . however , the time must be equal for both balls . | when two balls collide we take the force exerted by the balls on each other to be internal ... then why external in case of wall ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | of course , no object is really immovable , but some are so heavy that they appear to be . consider the case of a bouncy ball of mass $ m $ traveling at velocity $ v $ towards a brick wall . it hits the wall and bounces back with velocity $ -v $ . the wall is well attached to the earth and does n't move , yet the momen... | if the ball is moving with velocity v towards the spring and then it compresses the spring to return back with velocity -v. how is momentum conserved here ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | what is the recoil speed in this case ? where did the additional momentum go ? exercise 2a : a golf club head of mass $ m_c=0.25~\mathrm { kg } $ is swung and collides with a stationary golf ball of mass $ m_b=0.05~\mathrm { kg } $ . high speed video shows that the club is traveling at $ v_c = 40~\mathrm { m/s } $ when... | in exercise 2a , why did we subtract the mass*velocity of the ball from the momentum of the golf club in the left side of the equation instead of just using the same formula from exercise 1a ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | there are at least four things that are interesting—and sometimes counter-intuitive—about momentum conservation : momentum is a vector quantity , and therefore we need to use vector addition when summing together the momenta of the multiple bodies which make up a system . consider a system of two similar objects moving... | what if there is a splitting nuclei which is travelling in some velocity , disintegrates into daughter nuclei which travel in opposite directions and with different velocities ( mass will be different too ) .so basically , what will be an overall derived equation ? |
what is the principle of conservation of momentum ? in physics , the term conservation refers to something which does n't change . this means that the variable in an equation which represents a conserved quantity is constant over time . it has the same value both before and after an event . there are many conserved qua... | exercise 1a : the recoil of a cannon is probably familiar to anyone who has watched pirate movies . this is a classic problem in momentum conservation . consider a wheeled , 500 kg cannon firing a 2 kg cannonball horizontally from a ship . | in question 2a , i solved the problem using the equation m1v1i+m2v2i= ( m1+m2 ) v why is that incorrect ? |
key points the consumer price index , or cpi is a measure of inflation calculated by us government statisticians based on the price level from a fixed basket of goods and services that represents the purchases of the average consumer . the core inflation index is a measure of inflation typically calculated by taking th... | several price indices are not based on baskets of consumer goods . the gdp deflator is based on all the components of gdp . the producer price index is based on prices of supplies and inputs bought by producers of goods and services . | what is the connecting link between government expenditure and total production ( gdp ) of an economy ? |
overview the 2000 presidential election pitted republican george w. bush against democrat al gore . initial election returns showed that gore had won the popular vote , but neither candidate had garnered the 270 electoral votes required to win the presidency . the election hinged on results from the state of florida , ... | the gore campaign then requested that the disputed ballots in four counties be recounted by hand . the florida supreme court extended the deadline for the recount and ordered a manual recount . the bush campaign appealed the decision , and the us supreme court agreed to hear the case . | how long would the recount have taken ? |
overview the 2000 presidential election pitted republican george w. bush against democrat al gore . initial election returns showed that gore had won the popular vote , but neither candidate had garnered the 270 electoral votes required to win the presidency . the election hinged on results from the state of florida , ... | overview the 2000 presidential election pitted republican george w. bush against democrat al gore . initial election returns showed that gore had won the popular vote , but neither candidate had garnered the 270 electoral votes required to win the presidency . | why did al gore concede ? |
overview the 2000 presidential election pitted republican george w. bush against democrat al gore . initial election returns showed that gore had won the popular vote , but neither candidate had garnered the 270 electoral votes required to win the presidency . the election hinged on results from the state of florida , ... | the bush campaign appealed the decision , and the us supreme court agreed to hear the case . bush v. gore in the resulting case , bush v. gore , the us supreme court ordered that the recount be stopped . the incomplete recount was halted , and bush was awarded florida ’ s electoral votes and declared the president-elec... | would it have been possible to have some other non-partisan judges hear the bush v gore case ? |
overview the 2000 presidential election pitted republican george w. bush against democrat al gore . initial election returns showed that gore had won the popular vote , but neither candidate had garnered the 270 electoral votes required to win the presidency . the election hinged on results from the state of florida , ... | bush carried most states in the south , the rural midwest , and the rocky mountain region , while gore won most states in the northeast , the upper midwest , and the pacific coast . gore garnered 255 electoral votes to bush ’ s 246 , but neither candidate won the 270 electoral votes necessary for victory . election res... | should n't the electoral college be scrapped then ? |
overview the 2000 presidential election pitted republican george w. bush against democrat al gore . initial election returns showed that gore had won the popular vote , but neither candidate had garnered the 270 electoral votes required to win the presidency . the election hinged on results from the state of florida , ... | the court , in a 5-4 vote , ruled in favor of bush . the 2000 presidential campaign the 2000 presidential election pitted republican george w. bush , governor of texas and son of former us president george h.w . bush , against democrat al gore , former senator from tennessee and vice president in the administration of ... | if the results were `` scattered '' , who would officially be president ? |
overview the 2000 presidential election pitted republican george w. bush against democrat al gore . initial election returns showed that gore had won the popular vote , but neither candidate had garnered the 270 electoral votes required to win the presidency . the election hinged on results from the state of florida , ... | the outcome of the election was ultimately decided by the us supreme court in bush v. gore . the court , in a 5-4 vote , ruled in favor of bush . the 2000 presidential campaign the 2000 presidential election pitted republican george w. bush , governor of texas and son of former us president george h.w . | why was a re-vote not enacted , that could have been monitored more carefully ? |
how far away is the moon ? in the second century bc hipparchus derived a very good estimate of the distance to the moon using lunar parallax . it is based on how much the moon shifts relative to the background stars when we observe it from different vantage points on earth . to develop our measurement we first need to ... | now we need to determine the angle p using the parallax effect . finding parallax angle here are two photos taken at the same time from athens and selsey . we can assume the star ( regulus ) near the moon is fixed since it ’ s 78 light years away . | why were the measurements taken from selsey and athens ? |
how far away is the moon ? in the second century bc hipparchus derived a very good estimate of the distance to the moon using lunar parallax . it is based on how much the moon shifts relative to the background stars when we observe it from different vantage points on earth . to develop our measurement we first need to ... | to develop our measurement we first need to setup a triangle . think of the moon as a point in space with two straight lines connecting it to points on earth : in this example the two vantage points are selsey , uk and athens , greece which are separated by 2360 km . this gives us a triangle . | when measuring the distance between two vantage points on the earth should n't the bottom line of the triangle be curved instead of a straight line since the earth is round ? |
how far away is the moon ? in the second century bc hipparchus derived a very good estimate of the distance to the moon using lunar parallax . it is based on how much the moon shifts relative to the background stars when we observe it from different vantage points on earth . to develop our measurement we first need to ... | this looks about right since we know the moon has an angular diameter of 0.5 degrees . we now have the angle needed . the moon appears to shift 0.3 degrees when we observe it from two vantage points 2360 km apart . | would a curved line change the math needed to correctly answer the question ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | together these conductors act like the plates of a capacitor , so resistors also display some capacitive properties . these parasitic effects can be relevant at high frequencies , or when voltage or current changes sharply . if parasitics matter , you can model a component as a combination of ideal elements , as shown ... | what are some real-life examples where `` parasitic effects '' become relevant ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | the magnetic field exists in the volume of space around and inside the inductor , and the coil of wire has to be large enough to surround a large amount of magnetic field if it is to achieve a significant inductance . this is why it is rare to see an inductor designed into an integrated circuit . we finish up with this... | what is used in an integrated circuit to replace an inductor that takes too much space ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | together these conductors act like the plates of a capacitor , so resistors also display some capacitive properties . these parasitic effects can be relevant at high frequencies , or when voltage or current changes sharply . if parasitics matter , you can model a component as a combination of ideal elements , as shown ... | how do you calculate `` parasitic effects '' in a given situation ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | together these conductors act like the plates of a capacitor , so resistors also display some capacitive properties . these parasitic effects can be relevant at high frequencies , or when voltage or current changes sharply . if parasitics matter , you can model a component as a combination of ideal elements , as shown ... | can the parasitic effects of an inductor , a resistor , or a capacitator be useful in any situations ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | a spinning flywheel can not be brought to an instantaneous stand-still . likewise , the current in an inductor does not instantaneously stop . making inductors : to achieve higher levels of inductance ( higher $ \text { l } $ ) , inductors are made by winding wire in a coil . | what would be a situation in which you would want to avoid your circuit having a sudden loss of current and an inductor could help ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | you could think of it as how often electrons bump into the atoms in the material as they try to flow by . this property of a bulk material is called resistivity . you might also hear about conductivity , which is just the inverse of resistivity . | 2. what is a bulk material and how is it different from just ... material ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | being a good engineer means being aware of the limitations of real components compared to their the ideal abstractions . one simple variation from ideal is that physical device parameters $ ( \text { r , l , c } ) $ have some level of tolerance around the ideal value ( the tighter the tolerance , the more money you pay... | 3. what is r , l , c ( from the second paragraph ) ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | one set of plates rotates to overlap more or less area to the stationary set of plates . variable air capacitors are used to tune radios , for example . the most likely departure from the ideal capacitor equation happens if the voltage across the capacitor becomes so large the insulation between the plates breaks down ... | can anyone explain how capacitors and inductors are used in real circuits and its purposes ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | real components never have exactly their specified values . real circuit elements deviate from the ideal equations when voltage or current are taken to extremes . the straight line mathematical abstraction of a resistor does not go out to $ \infty $ voltage or $ \infty $ current for real resistors . the model breaks do... | is it possible for resistors to heat up if there is too much current or voltage ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | the fourth ( last ) band indicates the tolerance , gold is $ \pm 5\ % $ . the resistor value is $ 330 \ , \omega\ , \pm5\ % $ . this is a precision resistor with 5 color bands : read the bands from left to right : red red blue brown brown $ = 2 \,2 \,6 \,1 \,1 $ . the first three bands $ ( 2\,2\,6 ) $ are the value . | how do you read a resistor from left to right if you can flip it over ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | likewise , the current in an inductor does not instantaneously stop . making inductors : to achieve higher levels of inductance ( higher $ \text { l } $ ) , inductors are made by winding wire in a coil . the magnetic field can be intensified even more by placing a suitable magnetic material inside the coil . | and why do we actually have inductors ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | we know a changing magnetic field gives rise to an electric field , which , in turn , can cause charges to move . current makes magnetic field ; magnetic field makes current . this back-and-forth dance has a reinforcing effect on both the current and magnetic field . | there is any way to compel magnetic field lines to comes closer and became denser , so that inductor require less area or volume between their loops or winding ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | when this happens , a spark can burn through the insulation and jump between the plates . no more capacitor . real capacitors have a voltage rating that should not be exceeded . | what is the main use of inductor and capacitor in a circuit ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | the other unavoidable feature of inductors is that they take up a lot of space . the magnetic field exists in the volume of space around and inside the inductor , and the coil of wire has to be large enough to surround a large amount of magnetic field if it is to achieve a significant inductance . this is why it is rar... | when the article says `` the coil of wire has to be large enough to surround a large amount of magnetic field '' , is it taking about cross section or length ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | we know a changing magnetic field gives rise to an electric field , which , in turn , can cause charges to move . current makes magnetic field ; magnetic field makes current . this back-and-forth dance has a reinforcing effect on both the current and magnetic field . | also , is it true that a larger current produces a larger magnetic field , hence the need for a larger coil of wire ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | we know a changing magnetic field gives rise to an electric field , which , in turn , can cause charges to move . current makes magnetic field ; magnetic field makes current . this back-and-forth dance has a reinforcing effect on both the current and magnetic field . | you cant possibly have the wire 's cross section be bigger than the magnetic field its generating so why say the wire has to `` surround a large amount of magnetic field '' ? |
non-ideal circuit elements the circuit elements discussed in the previous article are ideal circuit elements . real-world circuit elements come close to the ideal mathematical models , but inevitably will be imperfect . being a good engineer means being aware of the limitations of real components compared to their the ... | when this happens , a spark can burn through the insulation and jump between the plates . no more capacitor . real capacitors have a voltage rating that should not be exceeded . | how come it works in a perpendicular direction in a chip capacitor ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | the video moves from the outer courtyards of the palace into the throne room and beyond into more private spaces , perhaps used for rituals . according to news sources , this important archaeological site was destroyed with bulldozers in march 2015 by the militants who occupy large portions of syria and iraq . feats of... | just to clarify , are the militants isis ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | luxurious palaces as a result of these fierce and successful military campaigns , the assyrians acquired massive resources from all over the near east which made the assyrian kings very rich . the palaces were on an entirely new scale of size and glamor ; one contemporary text describes the inauguration of the palace o... | just to clarify ... '' the palaces were on an entirely new scale of size and glamor ; one contemporary text describes the inauguration of the palace of kalhu , built by assurnasirpal ii ( who reigned in the early 9th century ) , '' this was the 9th century bce right ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | some of this wealth was spent on the construction of several gigantic and luxurious palaces spread throughout the region . the interior public reception rooms of assyrian palaces were lined with large scale carved limestone reliefs which offer beautiful and terrifying images of the power and wealth of the assyrian king... | i mean , these were ancient civilizations that did n't last into the `` common era '' , right ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | the topography includes three different trees and a roaring river , most likely setting the scene in and around the tigris or euphrates rivers . essay by dr. senta german additional resources : assyria on the metropolitan museum of art 's timeline of art history assyrians ( british museum ) nimrud ( british museum ) as... | what is the influence of assyrian art on ancient greek art ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | some of this wealth was spent on the construction of several gigantic and luxurious palaces spread throughout the region . the interior public reception rooms of assyrian palaces were lined with large scale carved limestone reliefs which offer beautiful and terrifying images of the power and wealth of the assyrian king... | who were the artists of these bas reliefs ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | in this scene we see one soldier holding a large screen to protect two archers who are taking aim . the topography includes three different trees and a roaring river , most likely setting the scene in and around the tigris or euphrates rivers . essay by dr. senta german additional resources : assyria on the metropolita... | in the video do the winged creatures have the same function as the winged creatures both are protective , but are they different somehow ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . | was there supposed to be sound ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | the interior public reception rooms of assyrian palaces were lined with large scale carved limestone reliefs which offer beautiful and terrifying images of the power and wealth of the assyrian kings and some of the most beautiful and captivating images in all of ancient near eastern art . this silent video ( copyright ... | or is it just that a lack of evidence of windows in the ruins led the animators to leave them out of the video ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | how did the assyrian empire manage to continuously motivate all men to become part of the army ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | the palaces were on an entirely new scale of size and glamor ; one contemporary text describes the inauguration of the palace of kalhu , built by assurnasirpal ii ( who reigned in the early 9th century ) , to which almost 70,000 people were invited to banquet . some of this wealth was spent on the construction of sever... | was it the only way to acquire women/slaves/wealth ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | the assyrians torched enemies ' houses , salted their fields , and cut down their orchards . luxurious palaces as a result of these fierce and successful military campaigns , the assyrians acquired massive resources from all over the near east which made the assyrian kings very rich . the palaces were on an entirely ne... | did n't the assyrian 's build massive mobile siege towers to knock down the walls that surrounded the cities ? |
a military culture the assyrian empire dominated mesopotamia and all of the near east for the first half of the first millennium , led by a series of highly ambitious and aggressive warrior kings . assyrian society was entirely military , with men obliged to fight in the army at any time . state offices were also under... | the destruction of susa one of the accomplishments ashurbanipal was most proud of was the total destruction of the city of susa . in this relief , we see ashurbanipal ’ s troops destroying the walls of susa with picks and hammers while fire rages within the walls of the city . military victories & amp ; exploits in the... | why would ashurbanipal have his troops wreck walls with hammers that were already being burnt down ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | since we know that work is done by forces , and forces can move objects , we might expect that knowing the power can allow us to learn something about the motion of a body over time . if we substitute the work done by a force $ w=f\cdot\delta x \text { cos } \theta $ into the equation for power $ p=\dfrac { w } { \delt... | how is p=m.a.v instantaneous velocity ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | the power output of electrical equipment such as light bulbs or stereos is typically advertised in watts . by definition , one watt is equal to one joule of work done per second . so if $ p $ represents power in watts , $ \delta e $ is the change in energy ( number of joules ) and $ \delta t $ is the time taken in seco... | horsepower=torque*rpm/5252 ..one hp=how much speed ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | if such a laser produces 1000 pulses per second , what is the average power output ? can the concept of power help us describe how objects move ? the equation for power connects work done and time . | in `` can the concept of power help us describe how objects move ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | in fact , different energy resources are often brought to bear in addressing each of them . instantaneous power is the power measured at a given instant in time . if we consider the equation for power , $ p = \delta e / \delta t $ , then this is the measurement we get when $ \delta t $ is extremely small . | about the last exercise , the first thing i thought about was 4.17/8 = 0.52 , therefore 48 % of the time is being spent on something else ( fighting air drag ) then i applied the same ratios to the engine power is this a wrong way to think about it ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | by definition , one watt is equal to one joule of work done per second . so if $ p $ represents power in watts , $ \delta e $ is the change in energy ( number of joules ) and $ \delta t $ is the time taken in seconds then : $ p = \frac { \delta e } { \delta t } $ there is also another unit of power which is still widel... | in considering the law of conservation of energy , where does the change in ( delta ) energy come from when defining power ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | in fact , different energy resources are often brought to bear in addressing each of them . instantaneous power is the power measured at a given instant in time . if we consider the equation for power , $ p = \delta e / \delta t $ , then this is the measurement we get when $ \delta t $ is extremely small . | how can ; time= ( mass ) finalvelocity^2 / ( 2 ) averagepower , if in order to get average power you need time ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | nevertheless , in these applications a high peak power might be more important to the driving or listening experience than a high average power . exercise 1 : using figure 1 , estimate the instantaneous power at 10 am , the average power for the entire twenty four hour time interval , and peak power . exercise 2 : one ... | in exercise 1 , how come the number of squares is 116.5 ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | however , it is usually only possible to maintain this power for a short time if damage is to be avoided . nevertheless , in these applications a high peak power might be more important to the driving or listening experience than a high average power . exercise 1 : using figure 1 , estimate the instantaneous power at 1... | are the calculations assuming that the peak power applies to the entire duration of a pulse ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | can the concept of power help us describe how objects move ? the equation for power connects work done and time . since we know that work is done by forces , and forces can move objects , we might expect that knowing the power can allow us to learn something about the motion of a body over time . | what is the relationship of power and work ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | nevertheless , in these applications a high peak power might be more important to the driving or listening experience than a high average power . exercise 1 : using figure 1 , estimate the instantaneous power at 10 am , the average power for the entire twenty four hour time interval , and peak power . exercise 2 : one ... | when calculating power using forces , do you add the resistance force and why ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | average power is the power measured over a long period , i.e. , when $ \delta t $ in the equation for power is very large . one way to calculate this is to find the area under the power vs time curve ( which gives the total work done ) and divide by the total time . this is usually best done with calculus , but it is o... | why does the area under the power vs time curve give the total work done ? |
what is power ? much like energy , the word power is something we hear a lot . in everyday life it has a wide range of meanings . in physics however , it has a very specific meaning . it is a measure of the rate at which work is done ( or similarly , at which energy is transferred ) . the ability to accurately measure ... | what is power ? much like energy , the word power is something we hear a lot . | what is the dimension formula of power ? |
background graphs the gradient what we 're building to intuitively , when you 're thinking in terms of graphs , local maxima of multivariable functions are peaks , just as they are with single variable functions . the gradient of a multivariable function at a maximum point will be the zero vector , which corresponds to... | local maxima and minima , visually let 's start by thinking about those multivariable functions which we can graph : those with a two-dimensional input , and a scalar output , like this : $ f ( x , y ) = \cos ( x ) \cos ( y ) e^ { -x^2 - y^2 } $ i chose this function because it has lots of nice little bumps and peaks .... | for a straight line segment how to find the local maxima & minima ? |
background graphs the gradient what we 're building to intuitively , when you 're thinking in terms of graphs , local maxima of multivariable functions are peaks , just as they are with single variable functions . the gradient of a multivariable function at a maximum point will be the zero vector , which corresponds to... | local maxima and minima , visually let 's start by thinking about those multivariable functions which we can graph : those with a two-dimensional input , and a scalar output , like this : $ f ( x , y ) = \cos ( x ) \cos ( y ) e^ { -x^2 - y^2 } $ i chose this function because it has lots of nice little bumps and peaks .... | when we have a function with a single global minimum or maximum , and some local minima and maxima , does it mean all the local minima and maxima are saddle points ? |
although the entertainment industry is constantly releasing a new hollywood blockbuster , tv series , video game , graphic novel , or comic book about batman ’ s latest adventures , it is important to understand that the extraordinary image of a human being with bat features and qualities existed long ago in the americ... | symbolism it is not hard to understand why humans create images of themselves possessing the bat ’ s striking physical features and impressive abilities , such as adroit flight and locating prey at night . bat-human imagery in ancient central american art is often linked to religious beliefs and practices . there is ev... | what would ancient central american `` mirrors '' have looked like ? |
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