An electric motor uses which of the following to convert electrical energy into mechanical energy?
electromagnet
battery
generator
transformer

The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.

If element x has 99 protons how many electrons does it have

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2