A TV tower has height of 400 m at a place. Calculate the coverage range, if radius the earth is 6400 km.

A T.V. tower has a height of 80 m. By how much the height of tower be increased to triple its coverage range?

A T.V. tower has a height of 125 m. What is the maximum distance and area upto which this T.V. trasmission can be received? (Given: Radius of earth = 6.64 xx 10^(6)m )

Find the weight of an object atthe height of 6400 km above theEarth surface the weight of theobject at the surface of Earthis 20 Newton and radius of theearth is 6400 kilometre

A satellite is launched into a circular orbit 1600 km above the surface of the earth. Find the period of revolution, the radius of the earth R = 6400 km and the acceleration due to gravity is 9.8 m//sec^2 .