context
stringlengths
545
71.9k
questionsrc
stringlengths
16
10.2k
question
stringlengths
11
563
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
the area under a velocity curve , regardless of the shape , will equal the displacement during that time interval . $ \text { area } =\text { displacement } $ what do solved examples involving velocity vs. time graphs look like ? example 1 : windsurfing speed change a windsurfer is traveling along a straight line , and...
when you have to draw a velocity-time graph , when do you whether to draw a curved or straight line ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
select all of the following statements that are true about the speed and acceleration of the windsurfer . ( a ) speed is increasing . ( b ) acceleration is increasing .
is it if you take time to speed up your velocity is slower ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
try sliding the dot horizontally on the example graph below to choose different times and see how the velocity changes . $ $ concept check : what is the velocity of the object at time $ t=4\text { seconds } $ , according to the graph above ? what does the slope represent on a velocity graph ?
in a velocity vs. time graph , are we assuming that as time progresses the object is moving in the same direction ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
the area under a velocity graph represents the displacement of the object . to see why , consider the following graph of motion that shows an object maintaining a constant velocity of 6 meters per second for a time of 5 seconds . to find the displacement during this time interval , we could use this formula $ \delta x=...
that is the area under the curve generated by the position graph of distance ( meters ) per time ( seconds ) ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
the area of this rectangle can be found by multiplying height of the rectangle , 6 m/s , times its width , 5 s , which would give $ \text { area } =\text { height } \times \text { width } = 6\text { m/s } \times 5\text { s } =30\text { m } $ this is the same answer we got before for the displacement . the area under a ...
is there a way to mathematically prove that the area under a velocity vs. time graph equals displacement ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
options a , speed increasing , and d , acceleration decreasing , are both true . the slope of a velocity graph is the acceleration . since the slope of the curve is decreasing and becoming less steep this means that the acceleration is also decreasing .
how to calculate it 's velocity and acceleration ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
a . what was the acceleration of the go-kart at time $ t=4\text { s } $ ? b .
is time a vector or a scalar quantity ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
to see why , consider the following graph of motion that shows an object maintaining a constant velocity of 6 meters per second for a time of 5 seconds . to find the displacement during this time interval , we could use this formula $ \delta x=v\delta t= ( 6\text { m/s } ) ( 5\text { s } ) =30\text { m } $ which gives ...
how would i find the displacement on a v-t graph ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position graph—they forget that for velocity graphs the value of the vertical axis is giving the velocity . try sliding the do...
what would be the velocity time graph of a particle thrown upwards and why ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
for the first 4.5 seconds , the speed increased from 0 m/s to about 5 m/s , but for the second 4.5 seconds , the speed increased from 5 m/s to only about 7 m/s . example 2 : go-kart acceleration the motion of a go-kart is shown by the velocity vs. time graph below . a .
for example 2 , should n't the displacement be -6 meters ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
the area of this rectangle can be found by multiplying height of the rectangle , 6 m/s , times its width , 5 s , which would give $ \text { area } =\text { height } \times \text { width } = 6\text { m/s } \times 5\text { s } =30\text { m } $ this is the same answer we got before for the displacement . the area under a ...
if distance is area under velocity-time line , then what about velocity-time curve ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
to find the displacement during this time interval , we could use this formula $ \delta x=v\delta t= ( 6\text { m/s } ) ( 5\text { s } ) =30\text { m } $ which gives a displacement of $ 30\text { m } $ . now we 're going to show that this was equivalent to finding the area under the curve . consider the rectangle of ar...
will the distance be accurate if we just draw rectangles under the curve ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
for the first 4.5 seconds , the speed increased from 0 m/s to about 5 m/s , but for the second 4.5 seconds , the speed increased from 5 m/s to only about 7 m/s . example 2 : go-kart acceleration the motion of a go-kart is shown by the velocity vs. time graph below . a .
what do we do if we need to find the avg velocity of the go-kart in the 2nd question ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position graph—they forget that for velocity graphs the value of the vertical axis is giving the velocity . try sliding the do...
how would you show the movement of a bungee jumper with 3 bounces on a velocity/time graph ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position graph—they forget that for velocity graphs the value of the...
including moments of zero velocity ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
the slope of the curve is negative between $ t=2 \text { s } $ and $ t=8 \text { s } $ since the slope is directed downward . this means the acceleration is negative . at $ t=2\text { s } $ , the slope is zero since the tangent line is horizontal .
can there be negative numbers ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
options a , speed increasing , and d , acceleration decreasing , are both true . the slope of a velocity graph is the acceleration . since the slope of the curve is decreasing and becoming less steep this means that the acceleration is also decreasing .
what 's the formula to calculate acceleration with velocity ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
at $ t=2\text { s } $ , the slope is zero since the tangent line is horizontal . this means the acceleration is zero at that moment . concept check : is the object whose motion is described by the graph above speeding up , slowing down , or traveling at constant velocity at time $ t=4\text { s } $ ?
so the acceleration will be zero , right ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
options a , speed increasing , and d , acceleration decreasing , are both true . the slope of a velocity graph is the acceleration . since the slope of the curve is decreasing and becoming less steep this means that the acceleration is also decreasing .
how does a non-uniform acceleration graph looks like ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
the area under a velocity curve , regardless of the shape , will equal the displacement during that time interval . $ \text { area } =\text { displacement } $ what do solved examples involving velocity vs. time graphs look like ? example 1 : windsurfing speed change a windsurfer is traveling along a straight line , and...
what kind of job do you need to make velocity versus time graphs and do they get paid well , how much do they make a year , a month , a week , a day ?
what does the vertical axis represent on a velocity graph ? the vertical axis represents the velocity of the object . this probably sounds obvious , but be forewarned—velocity graphs are notoriously difficult to interpret . people get so used to finding velocity by determining the slope—as would be done with a position...
try sliding the dot horizontally on the example graph below to choose different times and see how the velocity changes . $ $ concept check : what is the velocity of the object at time $ t=4\text { seconds } $ , according to the graph above ? what does the slope represent on a velocity graph ?
how to draw a speed-time graph and a velocity-time graph of an object thrown upwards till it reaches the ground ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
we can calculate how many moles of $ \text { agcl } $ we would expect to make using the stoichiometric factor from the balanced equation . the balanced equation tells us that we expect 2 moles of $ \text { agcl } $ for every 1 mole of $ \text { bacl } _2 $ : $ 7.49 \times 10^ { -3 } \ , \cancel { \text { mol bacl } _2 ...
1.82 divided by 2.15 times 100 equals 84.65 ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
in the following example we will identify the limiting reagent and calculate the theoretical yield for an actual chemical reaction . problem solving tip : the first and most important step for any stoichiometric calculation—such as finding the limiting reagent or theoretical yield—is to start with a balanced reaction !...
on a standardized test , how would you distinguish differences between a solely stoichiometric problem and a limiting reagent problem ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
the possibilities are endless ! since chemists know that the actual yield might be less than the theoretical yield , we report the actual yield using percent yield , which tells us what percentage of the theoretical yield we obtained . this ratio can be very valuable to other people who might try your reaction .
how would you express the actual yield if a side reaction occurs ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
method 1 : the first method is to calculate the actual molar ratio of the reactants , and then compare the actual ratio to the stoichiometric ratio from the balanced reaction . $ \text { actual ratio } =\dfrac { \text { moles of al } } { \text { moles of cl } } _2=\dfrac { 1.04 \times 10^ { -1 } \ , \text { mol al } } ...
in step 2 method 1 , how did you go from having 1.74 mol of al to 0.67 mol of al ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
this ratio can be very valuable to other people who might try your reaction . the percent yield is determined using the following equation : $ \text { percent yield } = \dfrac { \text { actual yield } } { \text { theoretical yield } } \times 100\ % $ since percent yield is a percentage , you would normally expect to ha...
for the percent yield equation , must the equation be in grams or can it be done in moles as well ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
in the first step , we will convert everything to moles , and then we will use the stoichiometric ratio from the balanced reaction to find the limiting reagent . step 1 : convert amounts to moles . we can convert the masses of $ \text { al } $ and $ \text { cl } _2 $ to moles using molecular weights : $ \text { moles o...
in the very last step , when you convert moles of agcl to mass , the atomic weight you used is 143.32 g. what 's the difference between atomic weight and atomic mass ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } _2 $ step 2 . calculate moles of product ....
and how did you calculate the atomic weight of agcl ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
they all give the same answer , so you can choose your favorite . all three methods use the stoichiometric ratio in slightly different ways . method 1 : the first method is to calculate the actual molar ratio of the reactants , and then compare the actual ratio to the stoichiometric ratio from the balanced reaction . $...
how do i determine the ratio between the to molecules ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
are theoretical yields present in reactions without the limiting reagent ( s ) ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
or is it just respective to limiting reagent situations only ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
this ratio can be very valuable to other people who might try your reaction . the percent yield is determined using the following equation : $ \text { percent yield } = \dfrac { \text { actual yield } } { \text { theoretical yield } } \times 100\ % $ since percent yield is a percentage , you would normally expect to ha...
in the first example ( with al and cl2 reacting to alcl3 ) , would there be a possible way to find the percent yield without any additional information ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
convert moles of product to grams . we can convert moles of $ \text { agcl } $ to the mass , in grams , using the molecular weight , which will give us the theoretical yield in grams : $ 1.50 \times 10^ { -2 } \ , \cancel { \text { mol agcl } } \times \dfrac { 143.32\ , \text { g agcl } } { 1\ , \cancel { \text { mol a...
is n't the molar mass of agcl 232.0g ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
therefore , $ \text { cl } _2 $ is our limiting reagent and $ \text { al } $ is in excess . method 2 : a more guess-and-check way you can figure out the limiting reactant is by picking one of the reactants—it doesn ’ t matter which one—and pretending that it is the limiting reagent . we can then calculate the moles of ...
can there be more than one limiting reactant ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
we can then calculate the moles of the other reagent needed based on the moles of our pretend limiting reagent . for example , if we pretend that $ \text { al } $ is the limiting reagent , we would calculate the required amount of $ \text { cl } _2 $ as follows : $ \text { moles of cl } _2=1.04 \times 10^ { -1 } \ , \c...
how can you make a good hypothesis of this reaction if there was a chemical experiment based on it where you are given a constant mass of 1.66g of al and about 10 different masses of chlorine gas ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
the other reactants are sometimes referred to as being in excess , since there will be some leftover after the limiting reagent is completely used up . the maximum amount of product that can be produced is called the theoretical yield . in the case of the hot dogs and hot dog buns , our theoretical yield is four comple...
if one chemicals mole amount is smaller than the other chemicals mole amount does that mean that the lowest amount is our limiting reactant ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
the possibilities are endless ! since chemists know that the actual yield might be less than the theoretical yield , we report the actual yield using percent yield , which tells us what percentage of the theoretical yield we obtained . this ratio can be very valuable to other people who might try your reaction .
so how do you ultimately know when you have successfully calculated the theoretical yield ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } _2 $ step 2 . calculate moles of product ....
is it when you have found the mass of the product ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
hi , how can we find the percentage conversion of the limiting reactant ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
is it possible not to have a limiting reagent ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
in the current reaction , we would say that 1 mole of reaction is when 2 moles of $ \text { al } $ react with 3 moles of $ \text { cl } _2 $ to produce 2 moles of $ \text { alcl } _3 $ , which we can also write as $ 1\ , \text { mol-rxn } =2\ , \text { mol al } =3\ , \text { mol cl } _2=2\ , \text { mol alcl } _3 $ we ...
can there be excess of the limiting reactant , after the reaction has taken place ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } _2 $ step 2 . calculate moles of product ....
do we calculate the stoichiometry coefficients when we go from gram to mole ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
if your percent yield is greater than 100 , that probably means you calculated or measured something incorrectly . example 3 . calculating theoretical and percent yield the following reaction is performed with 1.56g of $ \text { bacl } _2 $ , which is the limiting reagent .
in the mole rxn example , why have they put an equal sign , when 2al is reacting with 3cl2 ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
in order to get the best actual yield , does n't it make sense to just combine the reactants proportionally so that you do n't end up with a limiting reagent ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } _2 $ step 2 . calculate moles of product ....
if you combine reactants out of proportion , would n't that increase the output of excess products that are not the product that you are attempting to produce ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
that definition can sound rather confusing , but the idea is hopefully more clear in the context of our example . in the current reaction , we would say that 1 mole of reaction is when 2 moles of $ \text { al } $ react with 3 moles of $ \text { cl } _2 $ to produce 2 moles of $ \text { alcl } _3 $ , which we can also w...
can someone explain what mol-rxn is ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
that definition can sound rather confusing , but the idea is hopefully more clear in the context of our example . in the current reaction , we would say that 1 mole of reaction is when 2 moles of $ \text { al } $ react with 3 moles of $ \text { cl } _2 $ to produce 2 moles of $ \text { alcl } _3 $ , which we can also w...
is mol-rxn just a concept or is it a symbol like mol or pi ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 : convert amounts to moles . we can convert the masses of $ \text { al } $ and $ \text { cl } _2 $ to moles using molecular weights : $ \text { moles of al } =2.80 \ , \cancel { \text { g al } } \times \dfrac { 1\ , \text { mol al } } { 26.98 \ , \cancel { \text { g al } } } = 1.04 \times 10^ { -1 } \ , \text { ...
are you supposed to distribute the coefficient and the subscript when multiplying the formula weights of elements , or just the subscript ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
what are some industrial applications of limiting reactants ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
it looks like we have equal numbers of all atoms on both sides , so now we can move on to calculating the theoretical yield . step 1 . find moles of limiting reagent .
would it not be 1.04x10-1 , since the mole to mole ratio between al and alcl3 is or essentially ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
the balanced equation tells us that we expect 2 moles of $ \text { agcl } $ for every 1 mole of $ \text { bacl } _2 $ : $ 7.49 \times 10^ { -3 } \ , \cancel { \text { mol bacl } _2 } \times \dfrac { 2\ , \text { mol agcl } } { 1\ , \cancel { \text { mol bacl } _2 } } =1.50 \times 10^ { -2 } \text { mol agcl } $ step 3 ...
if i am trying to calculate the grams of oxygen in a chemical equation , since oxygen is a diatomic molecule ( o2 ) do i multiply the grams by 2 or just leave it as ( 15.999 ) ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
sir i want to ask that is n't it more easier to use no of moles is equal to mass in gram divided by molar mass formula then conversion factor formula in these calculations as i find it confusing ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
method 3 : the third method uses the concept of a mole of reaction , which is abbreviated as mol-rxn . one mole of reaction is defined as occurring when the number of moles given by the coefficients in your balanced equation react . that definition can sound rather confusing , but the idea is hopefully more clear in th...
and that what if we are not given mass and are given density and 90 % pure and also volume so ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
this ratio can be very valuable to other people who might try your reaction . the percent yield is determined using the following equation : $ \text { percent yield } = \dfrac { \text { actual yield } } { \text { theoretical yield } } \times 100\ % $ since percent yield is a percentage , you would normally expect to ha...
also is there a limit as to how high the percent yield could be ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
this ratio can be very valuable to other people who might try your reaction . the percent yield is determined using the following equation : $ \text { percent yield } = \dfrac { \text { actual yield } } { \text { theoretical yield } } \times 100\ % $ since percent yield is a percentage , you would normally expect to ha...
on a standardized multiple choice test when looking for percent yield , if the percent yield for the excess reagent is given as a possible answer but the percent yield for the limiting reagent is not given as a possible answer and they also through in a possible answer of `` not enough information is given '' , which a...
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
in practice , however , chemists don ’ t always obtain the maximum yield for many reasons . when running a reaction in the lab , loss of product often occurs during purification or isolation steps . you might even decide it is worth losing 10 % of your product during an extra purification step because it is more import...
what is the actual amount of product in a reaction ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
once you 've found the limiting reagent , how do you find the amount of the other reactant that is leftover ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
the percent yield is determined using the following equation : $ \text { percent yield } = \dfrac { \text { actual yield } } { \text { theoretical yield } } \times 100\ % $ since percent yield is a percentage , you would normally expect to have a percent yield between zero and 100 . if your percent yield is greater tha...
how old you have calculated the mass of 2agno3 ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
it looks like we have equal numbers of all atoms on both sides , so now we can move on to calculating the theoretical yield . step 1 . find moles of limiting reagent .
in example 1 method 2 , what would you do to find the limiting reagent if your mole ratio from the equation that you multiply one of the reactants by is ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
in the first step , we will convert everything to moles , and then we will use the stoichiometric ratio from the balanced reaction to find the limiting reagent . step 1 : convert amounts to moles . we can convert the masses of $ \text { al } $ and $ \text { cl } _2 $ to moles using molecular weights : $ \text { moles o...
how did you get to 143.32 g agcl in step 3 , converting moles of products to gram ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
step 1 . find moles of limiting reagent . we can calculate the moles of limiting reagent $ \text { bacl } _2 $ using the molecular weight : $ 1.56\ , \cancel { \text { g bacl } _2 } \times \dfrac { 1\ , \text { mol bacl } _2 } { 208.23\ , \cancel { \text { g bacl } _2 } } =7.49 \times 10^ { -3 } \ , \text { mol bacl } ...
how we know which is limiting regent ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
method 3 : the third method uses the concept of a mole of reaction , which is abbreviated as mol-rxn . one mole of reaction is defined as occurring when the number of moles given by the coefficients in your balanced equation react . that definition can sound rather confusing , but the idea is hopefully more clear in th...
what if there was a 3rd given mass of the same chemical equation ?
limiting reagent and theoretical yield it ’ s a classic conundrum : we have five hot dogs and four hot dog buns . how many complete hot dogs can we make ? assuming the hot dogs and buns combine in a one-to-one ratio , we will be limited by the number of hot dog buns we have since we will run out of buns first . in this...
this ratio can be very valuable to other people who might try your reaction . the percent yield is determined using the following equation : $ \text { percent yield } = \dfrac { \text { actual yield } } { \text { theoretical yield } } \times 100\ % $ since percent yield is a percentage , you would normally expect to ha...
what does the percent yield give us ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
we are all familiar with materials like rubber which stretch very easily . in mechanics , the force applied per unit area is what is important , this is called the stress ( symbol $ \sigma $ ) . the extent of the stretching/compression produced as the material responds to stress in called the strain ( symbol $ \epsilon...
is n't force per area called pressure ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
a spring supports a 1 kg mass horizontally via a pulley ( which can be assumed to be frictionless ) and an identical spring supports the same mass vertically . suppose the spring has mass of 50 g , spring constant k=200 n/m . what is the extension of the spring in each case ?
the spring constant is the same for all springs or different ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
it is always important to make sure that the direction of the restoring force is specified consistently when approaching mechanics problems involving elasticity . for simple problems we can often interpret the extension $ x $ as a 1-dimensional vector ; in this case the resulting force will also be a 1-dimensional vect...
in exercise 1 , how come the f ( force ) is equal to mg , not mgh ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
any spring should be designed and specified such that it only ever experiences elastic deformation when built into a machine under normal operation . hooke 's law when studying springs and elasticity , the 17ᵗʰ century physicist robert hooke noticed that the stress vs strain curve for many materials has a linear region...
does compression obey hooke 's law ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
it therefore extends $ \frac { 1~\mathrm { kg } \cdot 9.81~\mathrm { m/s^2 } } { 200~\mathrm { n/m } } =49~\mathrm { mm } $ this difference can be quite significant and if not taken into account it can lead to incorrect results in the laboratory . in physics teaching laboratories , we often use spring balances to measu...
can you still successfully measure force using a spring if hooke 's law was invalid ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
what happens when a material is deformed ? when a force is placed on a material , the material stretches or compresses in response to the force . we are all familiar with materials like rubber which stretch very easily .
is stress an internal force and pressure an external force ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
this is much more convenient for building mechanical devices . what happens when a material is deformed ? when a force is placed on a material , the material stretches or compresses in response to the force .
what happens when a rubber band is fixed at two ends and the middle is pulled down ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
what happens when the stress is removed depends on how far the atoms have been moved . there are broadly two types of deformation : elastic deformation . when the stress is removed the material returns to the dimension it had before the load was applied .
how do i calculate the elastic potential energy ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
for simple problems we can often interpret the extension $ x $ as a 1-dimensional vector ; in this case the resulting force will also be a 1-dimensional vector and the negative sign in hooke ’ s law will give the correct direction of the force . when calculating $ x $ , it is important to remember that the spring itsel...
if the nominal length is 50mm , and the compression is of 50mm then should n't the length under compression ( l = li- x = 50mm - 50mm = 0 ) become zero ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
within certain limits , the force required to stretch an elastic object such as a metal spring is directly proportional to the extension of the spring . this is known as hooke 's law and commonly written : $ \boxed { f=-kx } $ where $ f $ is the force , $ x $ is the length of extension/compression and $ k $ is a consta...
in exercise 1 , when we divided f over k , why the k is n't negative as hooke 's law said ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
within certain limits , the force required to stretch an elastic object such as a metal spring is directly proportional to the extension of the spring . this is known as hooke 's law and commonly written : $ \boxed { f=-kx } $ where $ f $ is the force , $ x $ is the length of extension/compression and $ k $ is a consta...
you give hooke 's law as f = -kx then proceed to use a non-negative version of same on the first exercise , even though in this execise the spring is compressed ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed .
how is spring different from rope ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
this is to signify that the restoring force due to the spring is in the opposite direction to the force which caused the displacement . pulling down on a spring will cause an extension of the spring downward , which will in turn result in an upward force due to the spring . it is always important to make sure that the ...
how is spring force different from the `` tension in rope '' ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
the extent of the stretching/compression produced as the material responds to stress in called the strain ( symbol $ \epsilon $ ) . strain is measured by the ratio of the difference in length $ \delta l $ to original length $ l_0 $ along the direction of the stress , i.e . $ \epsilon=\delta l/l_0 $ .
what is the difference between stress and pressure ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
this is known as hooke 's law and commonly written : $ \boxed { f=-kx } $ where $ f $ is the force , $ x $ is the length of extension/compression and $ k $ is a constant of proportionality known as the spring constant which is usually given in $ \mathrm { n/m } $ . though we have not explicitly established the directio...
in the last few examples why have n't we added the negative sign while using the hooke 's law ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
any spring should be designed and specified such that it only ever experiences elastic deformation when built into a machine under normal operation . hooke 's law when studying springs and elasticity , the 17ᵗʰ century physicist robert hooke noticed that the stress vs strain curve for many materials has a linear region...
how do we known that the springs behave according to hooke 's law ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
a spring supports a 1 kg mass horizontally via a pulley ( which can be assumed to be frictionless ) and an identical spring supports the same mass vertically . suppose the spring has mass of 50 g , spring constant k=200 n/m . what is the extension of the spring in each case ?
is spring constant is same on another planet ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
it will give an incorrect absolute result if used to measure a horizontal force . however , hooke 's law tells us that there is a linear relationship between force and extension . because of this we can still rely on the scale for relative measurements when used horizontally .
in excercise 2a of hooke 's law , is n't the minimum extension under compression ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
exercise 2b : what is the minimum elastic limit required by your spring ? young 's modulus and combining springs young 's modulus ( also known as the elastic modulus ) is a number that measures the resistance of a material to being elastically deformed . it is named after the 17ᵗʰ century physicist thomas young .
what is the dimentional formula for young 's modulus ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
the deformation is reversible , non-permanent . plastic deformation . this occurs when a large stress is applied to a material .
what are axial and torsional deformation ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
any spring should be designed and specified such that it only ever experiences elastic deformation when built into a machine under normal operation . hooke 's law when studying springs and elasticity , the 17ᵗʰ century physicist robert hooke noticed that the stress vs strain curve for many materials has a linear region...
is hooke 's law applicable to all types of matter ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
the design calls for the camera to slide on a pair of rails , with a spring supporting the camera and pulling it up against the tip of an adjustment screw as shown in figure 1 . the nominal length of the spring is $ l_0=50~\mathrm { mm } $ . what is the minimum spring constant required for this design ?
nominal means ''in name or thought but not in fact or not as things really are '' ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
in the vertical case , the force of gravity acts on the spring in the same direction as the force due to the mass . so the mass of the spring adds to that of the weight . the extended spring is supporting a total weight of 1.05 kg which causes an extension of $ \frac { 1.05~\mathrm { kg } \cdot 9.81~\mathrm { m/s^2 } }...
what is the stress at the midpoint of a rod of weight w1 on which another object of weight w2 hangs on it ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
the deformation is reversible , non-permanent . plastic deformation . this occurs when a large stress is applied to a material .
what is axial and torsional deformation ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
what happens when a material is deformed ? when a force is placed on a material , the material stretches or compresses in response to the force . we are all familiar with materials like rubber which stretch very easily .
what will be the force constant for longer piece ?
what is a spring ? a spring is an object that can be deformed by a force and then return to its original shape after the force is removed . springs come in a huge variety of different forms , but the simple metal coil spring is probably the most familiar . springs are an essential part of almost all moderately complex ...
the design calls for the camera to slide on a pair of rails , with a spring supporting the camera and pulling it up against the tip of an adjustment screw as shown in figure 1 . the nominal length of the spring is $ l_0=50~\mathrm { mm } $ . what is the minimum spring constant required for this design ?
in the 5th paragraph under the heading of hooke 's law , what does it mean by nominal length ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
it is possible to write three simultaneous equations to capture this constraint . consider terminals $ x $ and $ y $ ( and for the moment assume terminal $ z $ is n't connected to anything , so the current in $ \text r3 $ is $ 0 $ ) . in the $ \delta $ configuration , the resistance between $ x $ and $ y $ is $ rc $ in...
why we can assume that terminal z is n't connect to anything ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
after solving the simultaneous equations ( not shown ) , we get the equations to transform either network into the other . $ \delta \rightarrow \text y $ transformation equations for transforming a $ \delta $ network into a $ \text y $ network : $ r1 = \dfrac { rb\ , rc } { ra + rb + rc } $ $ r2 = \dfrac { ra\ , rc } {...
i want u to ask a full way to derive r1 and ra plz give a derivation how we get r1 and ra ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
we proceed through the remaining simplification steps just as we did before in the article on resistor network simplification . on the left branch , $ 3.125 + 1.25 = 4.375 \ , \omega $ on the right branch , $ 4 + 1 = 5\ , \omega $ the two parallel resistors combine as $ 4.375\ , ||\ , 5 = \dfrac { 4.375 \cdot 5 } { 4.3...
1 ) why in the end we get 4 ohms ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
after solving the simultaneous equations ( not shown ) , we get the equations to transform either network into the other . $ \delta \rightarrow \text y $ transformation equations for transforming a $ \delta $ network into a $ \text y $ network : $ r1 = \dfrac { rb\ , rc } { ra + rb + rc } $ $ r2 = \dfrac { ra\ , rc } {...
if it is connected to a source , how can i calculate voltage and current across ra , rb , rc ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come from the shape of the schematics , which resemble letters .
if i flip the circuit upside-down and let the positive wire ( i-in ) connect to top and negative wire ( i-out ) connect to downside of the flipped circuit , are these delta-wye transformation analysis still valid ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
$ \delta \rightarrow \text y $ transformation equations for transforming a $ \delta $ network into a $ \text y $ network : $ r1 = \dfrac { rb\ , rc } { ra + rb + rc } $ $ r2 = \dfrac { ra\ , rc } { ra + rb + rc } $ $ r3 = \dfrac { ra\ , rb } { ra + rb + rc } $ transforming from $ \delta $ to $ \text y $ introduces one ...
how are r1 and r2 in series in the y-transformation in the 1st diagram ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
the names delta and wye come from the shape of the schematics , which resemble letters . the transformation allows you to replace three resistors in a $ \delta $ configuration by three resistors in a $ \text y $ configuration , and the other way around . the $ \delta - \text y $ drawing style emphasizes these are 3-ter...
how is the t configuration different from the y configuration ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
and voilà ! check out our circuit . it now has series and parallel resistors where it had none before .
one sympton of an open circuit is what ?
sometimes when you are simplifying a resistor network , you get stuck . some resistor networks can not be simplified using the usual series and parallel combinations . this situation can often be handled by trying the $ \delta - \text y $ transformation , or 'delta-wye ' transformation . the names delta and wye come fr...
$ r1 = \dfrac { rb\ , rc } { ra + rb + rc } = \dfrac { 3 \cdot 3 } { 3 + 3 + 3 } = 1\ , \omega $ $ r2 = \dfrac { ra\ , rc } { ra + rb + rc } = \dfrac { 3 \cdot 3 } { 3 + 3 + 3 } = 1\ , \omega $ $ r3 = \dfrac { ra\ , rb } { ra + rb + rc } = \dfrac { 3 \cdot 3 } { 3 + 3 + 3 } = 1\ , \omega $ going in the other direction ...
how can i find the equivalent resistance of a delta circuit ?
the roman triumph the roman triumph was an ancient martial tradition—a parade so riotous that its symbolic culmination involved catapulting the victorious general ( triumphator ) to quasi-divine status for a single , heady day . the romans marked his status by staining his face red using the mineral pigment cinnabar ( ...
m. pfanner , der titusbogen ( mainz : p. von zabern , 1983 ) . l. roman , `` martial and the city of rome . '' the journal of roman studies 100 ( 2010 ) pp . 1-30 .
for the roman latin inscription , what do we read the letter `` v '' phonetically ?
the roman triumph the roman triumph was an ancient martial tradition—a parade so riotous that its symbolic culmination involved catapulting the victorious general ( triumphator ) to quasi-divine status for a single , heady day . the romans marked his status by staining his face red using the mineral pigment cinnabar ( ...
: belknap , 2009 ) . a. j. boyle and w. j. dominik , flavian rome : culture , image , text ( leiden : e. j. brill , 2003 ) . f. coarelli , divus vespasianus .
does it serve as both a `` u '' or a `` w '' phonetically at different places in a word ?