Two identical boxes are at rest on the ground. Box A is lifted vertically to a height of 5 m where it is held motionless. Box B is lifted at an angle of 45° to a final height of 5 m where it is held motionless. Which of the following statements is most accurate?

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.