Calculate the centripetal acceleration and centripetal force that acts on a 50 kg person going 20 m/s on an amusement park ride that has a radius of 8 meters. calculate the centripetal force on the person

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.