the force exerted by a driving boat is conservative, provide the internal function is negligible. Assume friction is negligible. Describe the changes in the potential energy of driving boat as a swimmer dives from it, starting just before the swimmer steps on the boat until just after his feet leave it.

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.

Smallest intensity of a stimulus that you can detect 50 percent of the time is