Which of the following would create voltage in a coil of wire?
a. spinning a coil of wire in a magnetic field
b. spinning a magnet in coil of wire
c. sliding a magnet back and forth in a coil of wire
d. all of the above

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?

Explain what will happen if decomposers were apsent from a forest ecoysystem.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy. work depends on the square of the change in potential energy. work is equal to the negative of the change in kinetic energy. work is equal to the square of the change in kinetic energy