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![[Post New]](/templates/default/images/icon_minipost_new.gif) 30 May 2007 23:50:22 IST
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Sir
when we use a rocket to go out of earth's gravitational field is the energy conserved.
as the rocket goes up potential energy increases.
but when out of earth's gravitational field g becomes 0 hence potential energy becomes 0
so where has the work diminished which was used to lift the rocket
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Being beaten is often a temporary condition, giving up is what makes it permanent. |
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31 May 2007 09:25:23 IST
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1.The conservation of energy principle is a very basic principle. So energy must be conserved.
2.potential energy never becomes zero. The formula to be used is --GM / R.
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it is not important where u stand, but in which direction u are moving |
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The energy is always conserved.
Here g can be zero virtually.
But infact it is never zero.
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The Scientist does not study nature because it is useful; he studies it because he delights in it, & he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, life would not be worth living. Ofcourse I do not here speak of that beauty that strikes the senses, the beauty of qualities & appearances; not that I undervalue such beauty, far from it, but it has nothing to do with science; I mean that profounder beauty which comes from the harmoniuos order of the parts, & which a pure intelligence can grasp. |
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31 May 2007 17:57:52 IST
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thank u sir
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Being beaten is often a temporary condition, giving up is what makes it permanent. |
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