Physics

#### A body of mass m is taken from earth surface to the height h equal to radius of earth, the, increase in potential energy will be

PhysicsGeneral

- mg R
- 2mgR
^{2}

^{2}#### Answer:The correct answer is:

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#### A man crosses a river through shortest distance D as given in the figure. is velocity of water andis velocity of man in still river water. is relative velocity of man w.r.t. river, then find the angle made by swimming man with the shortest distance AB

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#### A thin uniform annular disc (See figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a unit mass from point on its axix to infinity is....

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⇌

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#### A geostationary satellite orbits around the earth in a circular orbit of radius 3600 km the time period of a satellite orbiting a few hundred kilometers above the earth's surface (R earth = 6400 km ) will approximately be=...h

#### A geostationary satellite orbits around the earth in a circular orbit of radius 3600 km the time period of a satellite orbiting a few hundred kilometers above the earth's surface (R earth = 6400 km ) will approximately be=...h

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