Pls help What kind of energy is represented in the picture?"

Nuclear Energy
Radiant Energy
Chemical Energy

Why does the input force have to be greater than the force needed to lift the bale?

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.