Lisa lifts a 10N box from the floor to a kitchen shelf that is 2m above the floor. The lifting process took place during 3 seconds of time. How much work did Lisa do to lift the box?

Act has a 1200: 5 or 240: 1 turns ratio. it is short circuited. what is the maximum current at 1200a primary if we put a 100ohm resistor across the secondary end of the ct. use it as current source circuit.

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Ineed the answer to question 1 , i’m desperate