A30w light bulb uses 600j of electrical energy in a certain period of time. in that time , it produces 450 j of light energy. the rest of the energy is wasted calculate the efficiency of the light bulb

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.