Ronnie is in a stationary boat on the lake. He is reeling in a fish at 2 feet per second. The speed at which the fish moves toward Ronnie is:

This is the substance(s) formed in a chemical reaction.

If a simple machine reduces the strength of a force, what must be increased?

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th