Just how small do you think an individual atom is

Protons and neutrons are found within the nucleus of an atom

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

If the new moon happens on january 15th, what shape will it be on february 6th?