Picture a car traveling at a constant speed around a circular race track. is a car accelerating?

What is the speed of an object at a given moment?

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.

Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.