Compare and contrast O2 and F2.

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

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

The ph is the a.independent variable b.the dependent variable c.control group