Which part of the electromagnetic spectrum has a lower frequency than visible light?

x-rays

infrared

gamma rays

ultraviolet

Why is there friction between objects

What happens to atoms and chemical bonds during a reaction?

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