It takes 39.7 N to push a crate at a constant speed across flat ground where μk=0.438 what is the mass of the crate

What should the power status of a circuit be when measuring resistance with an ohmmeter?

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

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?