what are you doing right now

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MaidenMadness said:
i passed physics without any problems.....i had problems only with electrical engineering :P
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Then whoever scored your test must have been wrong. The laws of physics doesn't say anything about change of location. It is movement that is the key! And I moved very much. I moved so much I lost 80 calories. Now how did I do that if I didn't move? :roll:
 
Cyrus said:
Then whoever scored your test must have been wrong. The laws of physics doesn't say anything about change of location. It is movement that is they key! And I moved very much. I moved so much I lost 80 calories. Now how did I do that if I didn't move? :roll:
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potential energy is a caused by conservative forces and therefore it depends only on the begging and the final location of the object. egzample. if you lift some object up in the air and put it down at the same level you did no work. the fact you lost energy is only cause your perspective differs from mine. in globaly the enegry of the whole system , the object, you and the surrounding was unchanged. its all relative and depends on the system you are watching things from. everything is relative and nothing is constant except the velocity of light.......not even your mass(when you accelare at some speed you gain mass but cause you always travel with speeds that are so much smaller than velocity of light that change of mass is slight and unnoticable, but if you were to travel by a speed of lets say 0.5c your mass would be 4 times bigger than it is now
 
MaidenMadness said:
potential energy is a caused by conservative forces and therefore it depends only on the begging and the final location of the object. egzample. if you lift some object up in the air and put it down at the same level you did no work. the fact you lost energy is only cause your perspective differs from mine. in globaly the enegry of the whole system , the object, you and the surrounding was unchanged. its all relative and depends on the system you are watching things from. everything is relative and nothing is constant except the velocity of light.......not even your mass(when you accelare at some speed you gain mass but cause you always travel with speeds that are so much smaller than velocity of light that change of mass is slight and unnoticable, but if you were to travel by a speed of lets say 0.5c your mass would be 4 times bigger than it is now
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I'm too tired to read all that!
 
MaidenMadness said:
potential energy is a caused by conservative forces and therefore it depends only on the begging and the final location of the object. egzample. if you lift some object up in the air and put it down at the same level you did no work. the fact you lost energy is only cause your perspective differs from mine. in globaly the enegry of the whole system , the object, you and the surrounding was unchanged. its all relative and depends on the system you are watching things from. everything is relative and nothing is constant except the velocity of light.......not even your mass(when you accelare at some speed you gain mass but cause you always travel with speeds that are so much smaller than velocity of light that change of mass is slight and unnoticable, but if you were to travel by a speed of lets say 0.5c your mass would be 4 times bigger than it is now
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You just wrote a lot of waffle there. What you are describing is the theoretical framework of the laws of physics. When you put those laws into action, there are totally different rules.
Bottom line is, you do use energy/work while running on a treadmille. It says how many watts you generate and how many calories you burn on the bloody machine. And if you think for your self, it is pretty cleary that you move, even if you're not moving in location.
 
Cyrus said:
You just wrote a lot of waffle there. What you are describing is the theoretical framework of the laws of physics. When you put those laws into action, there are totally different rules.
Bottom line is, you do use energy/work while running on a treadmille. It says how many watts you generate and how many calories you burn on the bloody machine. And if you think for your self, it is pretty cleary that you move, even if you're not moving in location.
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as i said it all depends on the system you chose as the viewing things from
 
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