It takes Cho 5 seconds to move a sofa 10 meters with a force of 2 N. What is Cho's power output? 50 N-m/sec
4 N-m/sec
5 N-m/sec
10 N-m/sec

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?