First, watch: https://www.youtube.com/watch?v=33_F3uGhWWA -Pay extra attention t
ID: 1794886 • Letter: F
Question
First, watch: https://www.youtube.com/watch?v=33_F3uGhWWA-Pay extra attention to the scene where superman stops a malfunctioning airplane while flying in the air and forces the plane to gently land on a football field.
A) State and write exactly the law of conservation of momentum.
b) What is the “isolated system” in this scene?
c) Based in the law of conservation of momentum could Superman (with or without superpowers) stop and at the same time being still himself?
d) Imagine now that Superman emits behind him (as he is stopping the plane) a mysterious radiation field that carries energy and momentum. Can he now stop both the plane and himself? What is the “isolated system” in this case?
1) Assume that Superman uses a kind of fuel in his body (chemical or nuclear) and via the emission of gases or a mysterious radiation he can stop the plane and make it land smoothly. Make a Fermi calculation and estimate the energy that superman should consume in order to accomplish the feat. Write down in your report every reference you used to collect your data.
2) Assume that the energy is coming either from burning body fat, from a fuel like substance like gasoline, or from a kind of nuclear reaction happening inside superman’s body. Make a search in the web and find how much chemical energy is included in a US gallon of gasoline. Then estimate how much gasoline should have superman carried with him in order to achieve his feat. Now reflect and write if it is reasonable to assume that superman owes his energy in gasoline like chemical substances. Write down in your report every reference you used to collect your data.
3) Make a search in the web and find how much energy (in calories) a person should produce in order to burn a pound (lb) of fat. (I think is something between 2,000 and 5,000 food Calories. You will need to do some unit conversion from food Calories into Joules because you need to work in the SI system. You may also consult the class notes for help in unit conversion). Then estimate how much fat (mass of fat) Superman had to have in his body in order to burn it and produce the required energy. Now reflect and write if it is reasonable to assume that superman owes his energy in the amount of food he eats and in the amount of fat (and muscle) in his body. Write down in your report every reference you used to collect your data.
4) Lastly, we assume that the energy comes from nuclear reactions inside superman’s body where mass is transformed into energy in accordance to the famous Einstein equation E=mc2 . Use c = 3×108 m/s for the speed of light. Get the speed of light from the web and calculate the amount of mass required to produce the energy that superman has to produce. Is the amount of mass small or large? Write down in your report every reference you used to collect your data.
5) Having examined three different hypotheses on the way that Superman produces his energy how do you think that he produces it? From food, chemical fuel or nuclear reactions in his body that transform mass into Energy? Reflect and comment of the amount of energy we can get from the nuclear reactions. First, watch: https://www.youtube.com/watch?v=33_F3uGhWWA
-Pay extra attention to the scene where superman stops a malfunctioning airplane while flying in the air and forces the plane to gently land on a football field.
A) State and write exactly the law of conservation of momentum.
b) What is the “isolated system” in this scene?
c) Based in the law of conservation of momentum could Superman (with or without superpowers) stop and at the same time being still himself?
d) Imagine now that Superman emits behind him (as he is stopping the plane) a mysterious radiation field that carries energy and momentum. Can he now stop both the plane and himself? What is the “isolated system” in this case?
1) Assume that Superman uses a kind of fuel in his body (chemical or nuclear) and via the emission of gases or a mysterious radiation he can stop the plane and make it land smoothly. Make a Fermi calculation and estimate the energy that superman should consume in order to accomplish the feat. Write down in your report every reference you used to collect your data.
2) Assume that the energy is coming either from burning body fat, from a fuel like substance like gasoline, or from a kind of nuclear reaction happening inside superman’s body. Make a search in the web and find how much chemical energy is included in a US gallon of gasoline. Then estimate how much gasoline should have superman carried with him in order to achieve his feat. Now reflect and write if it is reasonable to assume that superman owes his energy in gasoline like chemical substances. Write down in your report every reference you used to collect your data.
3) Make a search in the web and find how much energy (in calories) a person should produce in order to burn a pound (lb) of fat. (I think is something between 2,000 and 5,000 food Calories. You will need to do some unit conversion from food Calories into Joules because you need to work in the SI system. You may also consult the class notes for help in unit conversion). Then estimate how much fat (mass of fat) Superman had to have in his body in order to burn it and produce the required energy. Now reflect and write if it is reasonable to assume that superman owes his energy in the amount of food he eats and in the amount of fat (and muscle) in his body. Write down in your report every reference you used to collect your data.
4) Lastly, we assume that the energy comes from nuclear reactions inside superman’s body where mass is transformed into energy in accordance to the famous Einstein equation E=mc2 . Use c = 3×108 m/s for the speed of light. Get the speed of light from the web and calculate the amount of mass required to produce the energy that superman has to produce. Is the amount of mass small or large? Write down in your report every reference you used to collect your data.
5) Having examined three different hypotheses on the way that Superman produces his energy how do you think that he produces it? From food, chemical fuel or nuclear reactions in his body that transform mass into Energy? Reflect and comment of the amount of energy we can get from the nuclear reactions.
-Pay extra attention to the scene where superman stops a malfunctioning airplane while flying in the air and forces the plane to gently land on a football field.
A) State and write exactly the law of conservation of momentum.
b) What is the “isolated system” in this scene?
c) Based in the law of conservation of momentum could Superman (with or without superpowers) stop and at the same time being still himself?
d) Imagine now that Superman emits behind him (as he is stopping the plane) a mysterious radiation field that carries energy and momentum. Can he now stop both the plane and himself? What is the “isolated system” in this case?
1) Assume that Superman uses a kind of fuel in his body (chemical or nuclear) and via the emission of gases or a mysterious radiation he can stop the plane and make it land smoothly. Make a Fermi calculation and estimate the energy that superman should consume in order to accomplish the feat. Write down in your report every reference you used to collect your data.
2) Assume that the energy is coming either from burning body fat, from a fuel like substance like gasoline, or from a kind of nuclear reaction happening inside superman’s body. Make a search in the web and find how much chemical energy is included in a US gallon of gasoline. Then estimate how much gasoline should have superman carried with him in order to achieve his feat. Now reflect and write if it is reasonable to assume that superman owes his energy in gasoline like chemical substances. Write down in your report every reference you used to collect your data.
3) Make a search in the web and find how much energy (in calories) a person should produce in order to burn a pound (lb) of fat. (I think is something between 2,000 and 5,000 food Calories. You will need to do some unit conversion from food Calories into Joules because you need to work in the SI system. You may also consult the class notes for help in unit conversion). Then estimate how much fat (mass of fat) Superman had to have in his body in order to burn it and produce the required energy. Now reflect and write if it is reasonable to assume that superman owes his energy in the amount of food he eats and in the amount of fat (and muscle) in his body. Write down in your report every reference you used to collect your data.
4) Lastly, we assume that the energy comes from nuclear reactions inside superman’s body where mass is transformed into energy in accordance to the famous Einstein equation E=mc2 . Use c = 3×108 m/s for the speed of light. Get the speed of light from the web and calculate the amount of mass required to produce the energy that superman has to produce. Is the amount of mass small or large? Write down in your report every reference you used to collect your data.
5) Having examined three different hypotheses on the way that Superman produces his energy how do you think that he produces it? From food, chemical fuel or nuclear reactions in his body that transform mass into Energy? Reflect and comment of the amount of energy we can get from the nuclear reactions. -Pay extra attention to the scene where superman stops a malfunctioning airplane while flying in the air and forces the plane to gently land on a football field. -Pay extra attention to the scene where superman stops a malfunctioning airplane while flying in the air and forces the plane to gently land on a football field.
A) State and write exactly the law of conservation of momentum.
b) What is the “isolated system” in this scene?
c) Based in the law of conservation of momentum could Superman (with or without superpowers) stop and at the same time being still himself?
d) Imagine now that Superman emits behind him (as he is stopping the plane) a mysterious radiation field that carries energy and momentum. Can he now stop both the plane and himself? What is the “isolated system” in this case?
1) Assume that Superman uses a kind of fuel in his body (chemical or nuclear) and via the emission of gases or a mysterious radiation he can stop the plane and make it land smoothly. Make a Fermi calculation and estimate the energy that superman should consume in order to accomplish the feat. Write down in your report every reference you used to collect your data.
1) Assume that Superman uses a kind of fuel in his body (chemical or nuclear) and via the emission of gases or a mysterious radiation he can stop the plane and make it land smoothly. Make a Fermi calculation and estimate the energy that superman should consume in order to accomplish the feat. Write down in your report every reference you used to collect your data.
2) Assume that the energy is coming either from burning body fat, from a fuel like substance like gasoline, or from a kind of nuclear reaction happening inside superman’s body. Make a search in the web and find how much chemical energy is included in a US gallon of gasoline. Then estimate how much gasoline should have superman carried with him in order to achieve his feat. Now reflect and write if it is reasonable to assume that superman owes his energy in gasoline like chemical substances. Write down in your report every reference you used to collect your data.
3) Make a search in the web and find how much energy (in calories) a person should produce in order to burn a pound (lb) of fat. (I think is something between 2,000 and 5,000 food Calories. You will need to do some unit conversion from food Calories into Joules because you need to work in the SI system. You may also consult the class notes for help in unit conversion). Then estimate how much fat (mass of fat) Superman had to have in his body in order to burn it and produce the required energy. Now reflect and write if it is reasonable to assume that superman owes his energy in the amount of food he eats and in the amount of fat (and muscle) in his body. Write down in your report every reference you used to collect your data.
4) Lastly, we assume that the energy comes from nuclear reactions inside superman’s body where mass is transformed into energy in accordance to the famous Einstein equation E=mc2 . Use c = 3×108 m/s for the speed of light. Get the speed of light from the web and calculate the amount of mass required to produce the energy that superman has to produce. Is the amount of mass small or large? Write down in your report every reference you used to collect your data.
5) Having examined three different hypotheses on the way that Superman produces his energy how do you think that he produces it? From food, chemical fuel or nuclear reactions in his body that transform mass into Energy? Reflect and comment of the amount of energy we can get from the nuclear reactions.
Explanation / Answer
Part-a
The law of conservation of momentum:-
For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.
Part-b
Isolated system:-
A system is a collection of two or more objects. An isolated system is a system that F is free from the influence fo a net external force that alters the momentum of the system.
A system in which the only forces that contribute to the momentum change of an individual object are the forces acting between the objects themselves can be considered an isolated system.
Thus in the given synerio Superman and the falling airplane constitues the part of the isolated system.
Part-c
That is not possible, because Momentum depends on two thing:- mass of the object and it's veloctiy. We can clearly see that in video the collison is inelastic means after the collision both bodies fall together with same speed.
So the velocity is same, to stop the plane the mass/weight of the superman must be too big because other object is airplane, so Superman's mass should be more than mass of the plane to stop it.
And in the scene superman stops the plane so how can he suddenly gains that much mass. It is defying physics law. that is consevation of momentum.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.