Which is the process by which a solid changes to a liquid? condensation
evaporation
melting
sublimation

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.