An extension cord made of two wires of diameter 0.129 cmcm (no. 16 copper wire) and of length 2.7 mm (9 ftft ) is connected to an electric heater which draws 17.0 AA on a 120-VV line. How much power is dissipated in the cord?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

Match each scenario to the form of energy it represents