Ametal wire of resistance 2.30 10-8 is cut into two equal pieces that are then connected side by side to form a new wire the length of which is equal to one-half the original length. what is the resistance of this new wire?

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.