Questions

The energy which we get from food is measured in

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2. m. During the collision, the per cent loss in the kinetic energy is

The quantum theory of light was given by

What is the name of the most ancient spiral galaxy that existed 11 billion years ago?

The Law of Demand is based on the concept that people _______.

If price of an article decreases from Rs 600 to Rs 500, when quantity demanded increases from 10000 units to 12000 units. Find point elasticity of demand?

In the following gases, which is not a colorless or odourless gas?