Physics Questions

The centre of the reflecting surface of a spherical mirror is a point called the ___.

For what is Radiocarbon dating technique used?

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 compressed spring possesses more energy than a spring of normal length because the compressed spring has

A high jumper runs for a while before taking a high jump so that the inertia of __ helps him take the long jump.

What is the resistance (in Ω) of an electrical component if a current of 0.2 A passes through it on application of 8 V of potential difference across it?

For what is Mohs scale used?

A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2)