Physics Past Questions and Answers

To protect a material from the influnce of an external magnetic field, the materials should be kept

In the diagram above, the ratio of he electric power dissipated in the 6Ω and the 3Ω resistor respectively is

If the angle between two vector P and Q is O^o, the vectors are said to

A body of mass 4kg is acted on by a constant force of 12N for 3 seconds. The kinetic energy gained by the body at the end of the time is

A machine whose efficiency is 60% has a velocity ratio of 5. If a force of 500N is applied to lift a load P, what is the magnitude of P?