EO (II) A bug on the surface of a pond is observed to move
up and down a total vertical distance of 6.0 cm, from the
lowest to the highest point, as a wave passes. If the ripples
decrease to 4.5 cm, by what factor does the bug's
maximum ke change?

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

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped