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What is orbital velocity? write the expression of escape velocity of a satellite moving very close of the earth's surface???
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More generally, escape velocity is the speed at which the sum of an object's kinetic energy and its gravitational potential energy is equal to zero; an object which has achieved escape velocity is neither on the surface, nor in a closed orbit of any radius.
ashamonikakati87:
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okk wait for 2nd ans
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●In gravitationally bound systems, the orbital speed of an astronomical body or object is the speed at which it orbits around either the barycenter or, if the object is much less massive than the largest body in the system, its speed relative to that largest body.
●Required Expression●
Consider a body of mass ‘m’ which is at rest on the surface of the earth. Let M be the mass of the earth and R be the radius of the earth. Then the binding energy of the body on the surface of the earth is given by
Where G is Universal gravitational constant.
Let Ve be the escape velocity, then the kinetic energy given to the body is given by
It means Satellite should be given this much kinetic energy so that it can go out of earth’s gravitational influence.
K.E. = B.E.
This is an expression for escape-velocity of a satellite on the surface of the earth.
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so sad
︶︿︶
but why???
@koi @reason @nhi @hh
i think it's a useless app
why u think so???
because it is useless no means for stay here anymore...
and by the way please you make your own personal id on fb if We wanna move out further
okkk
hi
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