What is the height at which the value of g is the same as at a depth of R/2?

If the change in the value of ‘g’ at a height h above the surface of the earth is the same as at a depth x below it, then (both x and h being much smaller than the radius of the earth):

What are the factors affecting the value of g?

What is co-efficient of restitution? A woodenball is dropped from a height of 2m. What is the height upto which the ball will rebound if the co-efficient of restitution is 0.5?

At sea level the value of g is minimum at :

What is the average value of g and what is its unit?

A body falling from a height of 10 m rebounds .from a hard floor. It loses 20% of its energy in impact. What is the height to which it would rise after the .impact?

If the height and length of the shadow of a man are the same,then the angle of elevation of the sun is a) 15^@ b) 30^@ c) 45^@ d) 60^@

What is the value of universal constant of gravitation G.

The greatest height to which a man can throw a stone is h. The greatest distance to which he can throw the same stone is

What is the volume of a solid sphere of radius 2R?