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a historian reflects on a lifetime of change acceleration , an increase in the rate of change , is occurring both in the universe and in human culture on planet earth . definitions in 2011 , three astronomers were awarded the nobel prize in physics for discovering in 1998 that the expansion of our universe is accelerat... | stay tuned as astronomers learn more about this . here on earth a different kind of acceleration is happening . for humans , acceleration means that the rate and scale of cultural change is increasing . david christian wrote in his book maps of time that it might not be an exaggeration to claim that “ more change has o... | what is acceleration and what causes it ? |
the victorian idea of a medieval woman rising up to stretch after a long session of embroidery , millais ’ mariana is the epitome of the victorian idea of a medieval woman . set in a vaguely gothic interior with pointed arches and stained glass windows , the painting has an air of mystery and melancholy that is typical... | the victorian idea of a medieval woman rising up to stretch after a long session of embroidery , millais ’ mariana is the epitome of the victorian idea of a medieval woman . set in a vaguely gothic interior with pointed arches and stained glass windows , the painting has an air of mystery and melancholy that is typical... | the woman in this picture appears to be wearing a wedding ring , does this compromise the interpretation of a woman abandoned or just add to the mystery ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | african americans actively took up the rights , opportunities , and responsibilities of citizenship . during reconstruction , seven hundred african american men served in elected public office , among them two united states senators , and fourteen members of the united states house of representatives . another thirteen... | what was it like for the african-american senators within congress ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | if slavery had ended , why were african americans treated unfairly ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | during reconstruction , seven hundred african american men served in elected public office , among them two united states senators , and fourteen members of the united states house of representatives . another thirteen hundred african american men and women held appointed government jobs . led by republicans in congres... | did people really hate another because of skin color ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | another thirteen hundred african american men and women held appointed government jobs . led by republicans in congress , the federal government insisted on civil and political rights for african americans in the face of fierce resistance by southern whites . federal military occupation of the defeated confederacy ensu... | other than moral grounds , what other reasons made republicans so insisted on civil and political rights for african americans ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | what where pros and cons of african americans being released from slavery ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | african americans celebrated their newfound freedom both privately and in public jubilees . but life in the years after slavery also proved to be difficult . although slavery was over , the brutalities of white race prejudice persisted . | was n't the life after slavery benefit the northern politicians as it took generations of free blacks to build communities ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | these laws granted certain legal rights to blacks , including the right to marry , own property , and sue in court , but the codes also made it illegal for blacks to serve on juries , testify against whites , or serve in state militias . the black codes also required black sharecroppers and tenant farmers to sign annua... | why were black people treated like slaves ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | why were african americans considered inferior in the first place ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | what economic , legal , and societal barriers did african americans face after slavery ? do you think that the federal government ought to have offered compensation—in money or land—to former slaves ? what accounts for the intensity of white race prejudice in the years after slavery ’ s end ? | so eventually , was there any compensation for slaves or slave holders ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | these laws granted certain legal rights to blacks , including the right to marry , own property , and sue in court , but the codes also made it illegal for blacks to serve on juries , testify against whites , or serve in state militias . the black codes also required black sharecroppers and tenant farmers to sign annua... | why were black people so discriminated against no matter what thay did ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | these laws granted certain legal rights to blacks , including the right to marry , own property , and sue in court , but the codes also made it illegal for blacks to serve on juries , testify against whites , or serve in state militias . the black codes also required black sharecroppers and tenant farmers to sign annua... | what factors led to the inclusion of black suffrage in the reconstruction act of 1867 ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | across the south lynching , disenfranchisement , and segregationist laws proliferated . it would not be until after the second world war and the 1960s civil rights movement that jim crow segregation would be outlawed . what do you think ? | would president lincoln have been better at reconstruction than andrew johnson ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | but over the course of the late 1860s and throughout the 1870s , the federal government ’ s military presence was withdrawn from various southern states , and with the compromise of 1877 , president rutherford b. hayes ordered the last federal troops in the south to withdraw . with no troops to enforce the fourteenth a... | in the second paragraph of the kkk and the end of reconstruction , why did president hayes order the troops in the south to withdraw ? |
overview the thirteenth amendment ( 1865 ) ended slavery , and slavery ’ s end meant newfound freedom for african americans . during the period of reconstruction , some 2000 african americans held government jobs . the black family , the black church , and education were central elements in the lives of post-emancipati... | across the south lynching , disenfranchisement , and segregationist laws proliferated . it would not be until after the second world war and the 1960s civil rights movement that jim crow segregation would be outlawed . what do you think ? | why did it take civil rights movement for a limited acceptance of blacks in u.s.a. do n't we still have remnants of slavery by housing most of them in ghettos ? |
do electrons move rapidly through direct-current circuits ? electrons actually move very slowly through direct current ( dc ) electric circuits . remember that dc is the simple circuit you get when you connect something like a battery to a lightbulb to make a flashlight : the transfer of energy between the battery and ... | do electrons move rapidly through direct-current circuits ? electrons actually move very slowly through direct current ( dc ) electric circuits . remember that dc is the simple circuit you get when you connect something like a battery to a lightbulb to make a flashlight : the transfer of energy between the battery and ... | why there is no phase difference between current and voltage in resistor ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | if we recall newton 's law of gravitation , the attractive force between two masses , $ m_1 $ and $ m_2 $ , decreases with separation distance $ r $ squared . if $ g $ is the gravitational constant , $ f = \frac { gm_1 m_2 } { r^2 } $ . when dealing with gravitational potential energy over large distances , we typicall... | what is the difference between g.p.e and just p.e ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | does that mean that an object never really climbs out of the `` gravity well '' because the gravitational potential energy never reaches zero ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | why is gravitational potential energy only defined for a system ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | it serves 60 million people and has a generation capacity of around 3 gw $ ^1 $ . the height difference , $ h $ , of the system is 380 m. assume the system has an overall energy efficiency of 80 % . what volume of water from the upper reservoir would need to flow through the turbine in a 30 minute period if a city is b... | i mean when we calculate gpe for a system of particles we only calculate for pairs , not for a single particle of the system , why ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1b ( extension ) : what is the cost of the elevator journey assuming the cost of electricity is $ 0.10 \dfrac { \ $ } { \text { kw } \cdot \text { hr } } $ ? exercise 2 : gravitational potential energy is one of very few forms of energy that can be used for practical energy storage at a very large scale . very... | what is the point of first using then producing energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | is p.e is also called gravitational p.e ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | water is pumped into an upper reservoir using excess energy to drive a motor which operates a turbine pump . when energy demand is high , the flow is reversed . the pump becomes a generator driven by the gravitational potential energy of the water in the upper reservoir . | so the higher up an object is , the high gpe it has ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | why is it that the higher elevation the more gravitational potential energy there is ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | for a spacecraft leaving earth , this can be said to occur at a height of about $ 5\cdot 10^7~ $ meters above the surface which is about four times the earth 's diameter . at that height , the acceleration due to gravity has decreased to about 1 % of the surface value . if we recall that work done is a force times a di... | so simply work is an amount of energy required to move 1 kg object per distance against constant acceleration like gravity/friction , right ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | it represents the potential an object has to do work as a result of being located at a particular position in a gravitational field . consider an object of mass $ m $ being lifted through a height $ h $ against the force of gravity as shown below . the object is lifted vertically by a pulley and rope , so the force due... | why do we find the work done lifting a mass to a certain height via a pulley using the force of gravity * height ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | all conservative forces have potential energy associated with them . the force of gravity is no exception . gravitational potential energy is usually given the symbol $ u_g $ . | should n't we use the lifting force that is exerted on the mass opposite to the force of gravity ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | what is the maximum gravitational potential energy of the earth that can then be transferred into kinetic energy of a falling body ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | the force of gravity is no exception . gravitational potential energy is usually given the symbol $ u_g $ . it represents the potential an object has to do work as a result of being located at a particular position in a gravitational field . | given are the mass of a body fired upwards and its initial velocity and it 's asking the potential energy when it reaches maximum height ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | is the potential energy at the surface of earth is equal to zero ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | what does zero potential energy means ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | is possible that potential energy be zero ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | when you find gravitational potential energy , what unit is it measured in ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | when dealing with gravitational potential energy over large distances , we typically make a choice for the location of our zero point which may seem counterintuitive . we place the zero point of gravitational potential energy at a distance $ r $ of infinity . this makes all values of the gravitational potential energy ... | why do all values of gravitational potential energy become negative if the distance becomes infinity ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | we can imagine coming in to land on a planet . as we come closer to the planet , we gain kinetic energy . because energy is conserved , we lose gravitational potential energy to account for this—in other words , $ u_g $ becomes more negative . | how and from where does 1.25 come into picture ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | as we come closer to the planet , we gain kinetic energy . because energy is conserved , we lose gravitational potential energy to account for this—in other words , $ u_g $ becomes more negative . this picture leads to the concept of a gravity well which you need to `` climb out of '' in order to transfer from one plan... | why energy of attraction is negative ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | at the last example why with the not uniform gravitational force why are we subtracting the upper energy from the ground/surface energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1a : how much electrical energy would be used by an elevator lifting a 75 kg person through a height of 50 m if the elevator system has an overall efficiency of 25 % ? assume the mass of the empty elevator car is properly balanced by a counterweight . exercise 1b ( extension ) : what is the cost of the elevato... | how to solve a gpe problem without mass ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | what factors would given greater ( gravitational ) potential energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | how does potential energy vary with time for an object on an incline if the object starts from the bottom to the top ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | so every action done on earth has gravitational potential energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | is the negative change of gravitational potential energy equal to the work ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | if no gravity exists , does that mean that there is no potential energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | if $ g $ is the gravitational constant , $ f = \frac { gm_1 m_2 } { r^2 } $ . when dealing with gravitational potential energy over large distances , we typically make a choice for the location of our zero point which may seem counterintuitive . we place the zero point of gravitational potential energy at a distance $ ... | if we want gpe at infinity to be 20j , what change should we make to the formulae ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | all conservative forces have potential energy associated with them . the force of gravity is no exception . gravitational potential energy is usually given the symbol $ u_g $ . | so like if they went far away from our sun and were basically hurled out to space as gravity was no longer acting on the space ship would they still somehow be affected by gravity ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1b ( extension ) : what is the cost of the elevator journey assuming the cost of electricity is $ 0.10 \dfrac { \ $ } { \text { kw } \cdot \text { hr } } $ ? exercise 2 : gravitational potential energy is one of very few forms of energy that can be used for practical energy storage at a very large scale . very... | in the first exercise , the solution for e ( energy the motor used ) is this : e = 1 / 0.25 * uperson = 147kj should n't it be `` e = 4*36.8kj ( uperson ) ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1b ( extension ) : what is the cost of the elevator journey assuming the cost of electricity is $ 0.10 \dfrac { \ $ } { \text { kw } \cdot \text { hr } } $ ? exercise 2 : gravitational potential energy is one of very few forms of energy that can be used for practical energy storage at a very large scale . very... | at what times can gpe also equal to kintetic energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1b ( extension ) : what is the cost of the elevator journey assuming the cost of electricity is $ 0.10 \dfrac { \ $ } { \text { kw } \cdot \text { hr } } $ ? exercise 2 : gravitational potential energy is one of very few forms of energy that can be used for practical energy storage at a very large scale . very... | is also called mutual energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1b ( extension ) : what is the cost of the elevator journey assuming the cost of electricity is $ 0.10 \dfrac { \ $ } { \text { kw } \cdot \text { hr } } $ ? exercise 2 : gravitational potential energy is one of very few forms of energy that can be used for practical energy storage at a very large scale . very... | in a particle system , can we find out how much energy belongs to one particle ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | if we recall newton 's law of gravitation , the attractive force between two masses , $ m_1 $ and $ m_2 $ , decreases with separation distance $ r $ squared . if $ g $ is the gravitational constant , $ f = \frac { gm_1 m_2 } { r^2 } $ . when dealing with gravitational potential energy over large distances , we typicall... | i understand that an object might by traveling upwards at a constant velocity ( meaning no net force while it continues to travel upwards ) , but where does the g.p.e come from if net work is 0 ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | how can gravitational potential energy be negative as it is a scalar quantity and scalar quantities are always positive ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | i just wan na make sure i got it right : we can not find the potential energy in x direction for ug because gravity does n't really exist in x coordinate ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | to use correct physics terminology , we are concerned about the gravitational potential energy of the weight . all conservative forces have potential energy associated with them . the force of gravity is no exception . gravitational potential energy is usually given the symbol $ u_g $ . | if we were to have some kind of conservative force that acts in x direction , then we were be able to find a potential rgy for this force in x direction ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | this does n't present a problem , though ; we just have to be sure that the same zero point is used consistently in the calculation . exercise 1a : how much electrical energy would be used by an elevator lifting a 75 kg person through a height of 50 m if the elevator system has an overall efficiency of 25 % ? assume th... | in example 1a , why do you divide the gpe of a person by 0.25 ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | the bath county pumped storage station is the world ’ s largest pumped-storage hydroelectric system . it serves 60 million people and has a generation capacity of around 3 gw $ ^1 $ . the height difference , $ h $ , of the system is 380 m. assume the system has an overall energy efficiency of 80 % . | should n't the gpe of a person be multiplied by 1/4 instead since 25 % = 1/4 ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | this does n't present a problem , though ; we just have to be sure that the same zero point is used consistently in the calculation . exercise 1a : how much electrical energy would be used by an elevator lifting a 75 kg person through a height of 50 m if the elevator system has an overall efficiency of 25 % ? assume th... | in exercise 1a , why is the eletrical used force bigger than the gpe ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1b ( extension ) : what is the cost of the elevator journey assuming the cost of electricity is $ 0.10 \dfrac { \ $ } { \text { kw } \cdot \text { hr } } $ ? exercise 2 : gravitational potential energy is one of very few forms of energy that can be used for practical energy storage at a very large scale . very... | why is it that we do n't have enough energy to fall back into charon where the blue and red lines cross ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | exercise 1b ( extension ) : what is the cost of the elevator journey assuming the cost of electricity is $ 0.10 \dfrac { \ $ } { \text { kw } \cdot \text { hr } } $ ? exercise 2 : gravitational potential energy is one of very few forms of energy that can be used for practical energy storage at a very large scale . very... | and what is the energy well ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | the pump becomes a generator driven by the gravitational potential energy of the water in the upper reservoir . the water can be released very rapidly to accommodate the peak power needs of a whole city or even many cities . the bath county pumped storage station is the world ’ s largest pumped-storage hydroelectric sy... | why is power involved in questions since power is introduced after this article ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | if we recall newton 's law of gravitation , the attractive force between two masses , $ m_1 $ and $ m_2 $ , decreases with separation distance $ r $ squared . if $ g $ is the gravitational constant , $ f = \frac { gm_1 m_2 } { r^2 } $ . when dealing with gravitational potential energy over large distances , we typicall... | can someone show me a step by step process of how we found - ( g*m1m2 ) /r ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | it represents the potential an object has to do work as a result of being located at a particular position in a gravitational field . consider an object of mass $ m $ being lifted through a height $ h $ against the force of gravity as shown below . the object is lifted vertically by a pulley and rope , so the force due... | if i am lifting an object does that mean my acceleration due to gravity is converted to -9.81 ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | how we ( humans ) use gravitational potential energy ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what if the gravitational field is not uniform ? if the problem involves large distances , we can no longer assume that the gravitational field is uniform . if we recall newton 's law of gravitation , the attractive force between two masses , $ m_1 $ and $ m_2 $ , decreases with separation distance $ r $ squared . | how was the 10 to the power of 4 joule found in the first problem ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . | can someone explain how to read the last diagram ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | what are some characteristics of gravitational potential gravity ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . | how much energy is required to project the body out of the gravitational field of the earth ? |
what is gravitational potential energy ? we all know instinctively that a heavy weight raised above someone 's head represents a potentially dangerous situation . the weight may be well secured , so it is not necessarily dangerous . our concern is that whatever is providing the force to secure the weight against gravit... | this picture leads to the concept of a gravity well which you need to `` climb out of '' in order to transfer from one planetary body to another . the image below shows a depiction of the gravity wells of pluto and its moon charon , calibrated for a 1,000 kg spacecraft . exercise 3 : based on the plot shown in the imag... | how can we have the same gpe scale for both charon and pluto , knowing that gravity is mass dependent ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | however , they do have specialized junctions called plasmodesmata ( singular , plasmodesma ) , places where a hole is punched in the cell wall to allow direct cytoplasmic exchange between two cells . plasmodesmata are lined with plasma membrane that is continuous with the membranes of the two cells . each plasmodesma h... | what is a plasma membrane meant to do ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | the groups are arranged into strands that form a branching network , with larger numbers of strands making for a tighter seal $ ^5 $ . the purpose of tight junctions is to keep liquid from escaping between cells , allowing a layer of cells ( for instance , those lining an organ ) to act as an impermeable barrier . for ... | what sorts of cells does the blood/brain barrier consist of ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | the purpose of tight junctions is to keep liquid from escaping between cells , allowing a layer of cells ( for instance , those lining an organ ) to act as an impermeable barrier . for example , the tight junctions between the epithelial cells lining your bladder prevent urine from leaking out into the extracellular sp... | what is the extracellular matrix and what does it do ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | for example , the tight junctions between the epithelial cells lining your bladder prevent urine from leaking out into the extracellular space . desmosomes animal cells may also contain junctions called desmosomes , which act like spot welds between adjacent epithelial cells . a desmosome involves a complex of proteins... | do desmosomes and cadherins depend on one another ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | tight junctions not all junctions between cells produce cytoplasmic connections . instead , tight junctions create a watertight seal between two adjacent animal cells . at the site of a tight junction , cells are held tightly against each other by many individual groups of tight junction proteins called claudins , each... | if the tight junction proteins create a watertight seal is there any liquid in the extracellular space between the proteins ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | ) $ ^4 $ gap junctions are particularly important in cardiac muscle : the electrical signal to contract spreads rapidly between heart muscle cells as ions pass through gap junctions , allowing the cells to contract in tandem . tight junctions not all junctions between cells produce cytoplasmic connections . instead , t... | how do tight junctions differ from desmosomes ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | plasmodesmata may selectively dilate ( expand ) to allow the passage of certain large molecules , such as proteins , although this process is poorly understood $ ^ { 1,2 } $ . gap junctions functionally , gap junctions in animal cells are a lot like plasmodesmata in plant cells : they are channels between neighboring c... | i have a question , we call the spaces between each plant cells 'middle lamellae ' ( or , the gluey stuff filled inside the spaces ) , right ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | plasmodesmata may selectively dilate ( expand ) to allow the passage of certain large molecules , such as proteins , although this process is poorly understood $ ^ { 1,2 } $ . gap junctions functionally , gap junctions in animal cells are a lot like plasmodesmata in plant cells : they are channels between neighboring c... | then how are plasmodesmata created if there are middle lamellae in between cells ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | ) $ ^4 $ gap junctions are particularly important in cardiac muscle : the electrical signal to contract spreads rapidly between heart muscle cells as ions pass through gap junctions , allowing the cells to contract in tandem . tight junctions not all junctions between cells produce cytoplasmic connections . instead , t... | why is it that tight junctions form a water tight seal but desmosomes do not ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | instead , tight junctions create a watertight seal between two adjacent animal cells . at the site of a tight junction , cells are held tightly against each other by many individual groups of tight junction proteins called claudins , each of which interacts with a partner group on the opposite cell membrane . the group... | what is adhering junction ( zona adherna ) ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | inside the cell , the cadherins attach to a structure called the cytoplasmic plaque ( red in the image at right ) , which connects to the intermediate filaments and helps anchor the junction . desmosomes pin adjacent cells together , ensuring that cells in organs and tissues that stretch , such as skin and cardiac musc... | why are skin cells shed in sheets ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | each plasmodesma has a thread of cytoplasm extending through it , containing an even thinner thread of endoplasmic reticulum ( not shown in the diagram above ) . molecules below a certain size ( the size exclusion limit ) move freely through the plasmodesmal channel by passive diffusion . the size exclusion limit varie... | does 'the size exclusion limit ' apply to gap junctions too ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | ) $ ^4 $ gap junctions are particularly important in cardiac muscle : the electrical signal to contract spreads rapidly between heart muscle cells as ions pass through gap junctions , allowing the cells to contract in tandem . tight junctions not all junctions between cells produce cytoplasmic connections . instead , t... | can water pass through tight junctions ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | the size exclusion limit varies among plants , and even among cell types within a plant . plasmodesmata may selectively dilate ( expand ) to allow the passage of certain large molecules , such as proteins , although this process is poorly understood $ ^ { 1,2 } $ . gap junctions functionally , gap junctions in animal c... | # 1 what are ions ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | the size exclusion limit varies among plants , and even among cell types within a plant . plasmodesmata may selectively dilate ( expand ) to allow the passage of certain large molecules , such as proteins , although this process is poorly understood $ ^ { 1,2 } $ . gap junctions functionally , gap junctions in animal c... | # 2 how big can cells grow to ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | ) $ ^4 $ gap junctions are particularly important in cardiac muscle : the electrical signal to contract spreads rapidly between heart muscle cells as ions pass through gap junctions , allowing the cells to contract in tandem . tight junctions not all junctions between cells produce cytoplasmic connections . instead , t... | referring to the diagram on tight junctions : so the blue dots are meant to be proteins ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | ) $ ^4 $ gap junctions are particularly important in cardiac muscle : the electrical signal to contract spreads rapidly between heart muscle cells as ions pass through gap junctions , allowing the cells to contract in tandem . tight junctions not all junctions between cells produce cytoplasmic connections . instead , t... | does tight junctions cell 's able to exchange molecule each another ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | and in still other cases , you might need to ensure that the walls were sealed very tightly together – for instance , to prevent water from dripping between them . as it turns out , cells face the same questions when they ’ re arranged in a tissue next to other cells . should they put in doors that connect them directl... | how does molecule from outer tissue can get through ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | ) $ ^4 $ gap junctions are particularly important in cardiac muscle : the electrical signal to contract spreads rapidly between heart muscle cells as ions pass through gap junctions , allowing the cells to contract in tandem . tight junctions not all junctions between cells produce cytoplasmic connections . instead , t... | can bacteria form junctions with each other in order to exchange genetic material ? |
introduction if you were building a building , what kinds of connections might you want to put between the rooms ? in some cases , you ’ d want people to be able to walk from one room to another , in which case you ’ d put in a door . in other cases , you ’ d want to hold two adjacent walls firmly together , in which c... | plasmodesmata may selectively dilate ( expand ) to allow the passage of certain large molecules , such as proteins , although this process is poorly understood $ ^ { 1,2 } $ . gap junctions functionally , gap junctions in animal cells are a lot like plasmodesmata in plant cells : they are channels between neighboring c... | are tight junctions , gap junctions , and desmosomes only found in animal cells ( not plant cells ) ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | the effect of intermolecular forces is much more prominent at low temperatures because the molecules have less kinetic energy to overcome the intermolecular attractions . the van der waals equation we can use a number of different equations to model the behavior of real gases , but one of the simplest is the van der wa... | in the van der waals equation , we add something to p. however , in a real gas , we account for intermolecular forces of attraction where particles attract each other- should this not 'reduce ' the pressure since now the particles are attracted to other particles so they might not hit the wall with the same force or sp... |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | the van der waals equation we can use a number of different equations to model the behavior of real gases , but one of the simplest is the van der waals ( vdw ) equation . the vdw equation basically incorporates the effect of gas molecule volume and intermolecular forces into the ideal gas equation . $ [ p+\dfrac { an^... | what is b in the equation ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | the size of the particles ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | we can also calculate the molar volume of the ideal gas at the same temperature and pressure , and then take the ratio of the two volumes . $ z=\dfrac { \dfrac { v } n } { \dfrac { rt } p } =\dfrac { pv } { nrt } $ this ratio is called the compressibility or compression factor , $ z $ . for a gas with ideal behavior , ... | so , how does the compressibility factor 'z ' vary with temperature and pressure ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | when we use the ideal gas law , we make a couple assumptions : $ 1.~ $ we can ignore the volume taken up by the imaginary ideal gas molecules $ 2.~ $ the gas molecules do not attract or repel each other however , we know that in real life , gases are made up of atoms and molecules that actually take up some finite volu... | what exactly is the `` real molar volume '' and '' ideal molar volume '' ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | to be more specific , at some temperature we can take $ n $ moles of our gas and measure the volume it takes up at a given pressure ( or measure the pressure for a known volume ) . we can also calculate the molar volume of the ideal gas at the same temperature and pressure , and then take the ratio of the two volumes .... | what are the equations to calculate the real and ideal molar volumes to even be able to compare the ratio ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | when we use the ideal gas law , we make a couple assumptions : $ 1.~ $ we can ignore the volume taken up by the imaginary ideal gas molecules $ 2.~ $ the gas molecules do not attract or repel each other however , we know that in real life , gases are made up of atoms and molecules that actually take up some finite volu... | i 've only ever heard of molar volume being 22.41 ( at stp ) , how are we getting two different molar volumes at the same temperature and pressure ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | under what conditions of pressure and temperature is the ideal gas equation valid ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | but what happens when this is not the case , such as at high pressures ? for a given pressure , the real gas will end up taking up a greater volume than predicted by the ideal gas law since we also have to take into account the additional volume of the gas molecules themselves . this increases our molar volume relative... | why do we substract the actual volume of gas from total volume ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | i did n't understand what is messuring the axis y ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | $ a $ and $ b $ are measured constants for a specific gas ( and they might have some slight temperature and pressure dependence ) . at low temperatures and low pressure , the correction for volume is not as important as the one for pressure , so $ z $ is less than $ 1 $ . at high pressures , the correction for the volu... | why pressure correction done by ven dar wals ? |
because sometimes life is n't ideal by now you 've probably heard a lot about the ideal gas law , and you may have a sense of how to use the ideal gas equation to look at the relationships between pressure ( $ p $ ) , volume ( $ v $ ) , moles of gas ( $ n $ ) , and temperature ( $ t $ ) . but when do gases follow the i... | the “ correction ” to the volume , $ nb $ , subtracts out the volume of the gas molecules from the total volume of the container to get a more accurate measure of the empty space available for the gas molecules . $ a $ and $ b $ are measured constants for a specific gas ( and they might have some slight temperature and... | what are the constants themselves ? |
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