The angular velocity of the earth's rotation about its axis is `omega`. An object weighed by a spring balance gives the same reading at the equator as at height `h` above the poles. The value of `h` will be

The angular velocity of earth's rotations on its geographical axis is

Let omega be the angular velocity of the earth's rotation about its axis. Assume that the acceleration due to gravity on the earth's surface has the same value at the equator and the poles. An object weighed by a spring balance gives the same reading at the equator as at a height h above the poles (h lt lt R) . The value of h is

The value of angular momentum of the earth rotating about its own axis is

Let omega be the angular velocity of the earth's rotation about its axis. Assume that the acceleration due to gravity on the earth's surface has the same value at the equator and the poles. An object weighed at the equator gives the same reading as a reading taken at a depth d below earth's surface at a pole (dlt ltR) . the value of d is-