In order to be considered work, the components that must be present are
a force and a movement in the same direction as the force.
an action which causes movement and an opposite reaction.
an action which causes no movement or reaction.
a force and a movement in the opposite direction of the force.

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.

A90db sound wave strikes an eardrum whose area is 5.0×10^-5m^2. how much energy is absorbed by the eardrum per second

You are waiting in line to use the diving board at your local pool.while watching people dive into the pool from the board,you realize that using a diving board to spring into the air before a dive is good example newton's third law of motion.explain how a diving board illustrated newton's law of motion