The error in a compass is called

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

Could someone . i have tried to solve myself but my calculation is off