Pls ! quick ! which of the following is a difference between rotation and translation? a. rotation has a reference point, while translation does not. b. translation has a reference point, while translation does not. c. a rotation body moves around an internal or external axis, but a translating body does not. d. a translation body moves around an external axis, but a rotating body moves around an internal axis.

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.