A shell is thrown horizontally from a rocket which is at 600 km height from earth’s surface. Calculate the velocity at which the shell will rotate around earth in circular orbit.

Calculate the value of ‘g' at height ‘h' from the earth’s surface.

Calculate the height from earth’s surface at which value of g is 1% than that of the earth surface.

The weight of a body is different at different heights from the earth's surface-why?

A satellite is revolving in a circular orbit at a height h from the earth's surface (radius of earth R,h lt lt R ). The minimum increase in its orbital velocity required so that the satellite could escape from the earth's gravitational field , is close to :(Neglect the effect of atmosphere)

What is the condition for setting up an artificial satellite at a height h from the earth’s surface? (Radius of the earth = R, mass of the earth= M).

An artificial satellite is moving in an orbit around the earth with a velocity equal to one-third the escape velocity from the surface of the earth. (ii) The satellite comes to rest in its orbit and then is allowed to fall freely on to the surface of the earth. Find the speed with which the satellite strikes the earth's surface. Given radius of earth =6400 km.

An artificial satellite revolves around the earth in a circular path at a distance of 3400 km from the earth's surface. Find the velocity of the artificial satellite . The radius of the =6400km, g=980 cm*s^(-2) .