When making toast, Mr. Ford uses a 1,300-W toaster oven for 13.7 minutes every day for 30 days. If Walton EMC charges $0.10 /kW-hr, how much did Mr. Ford pay
(in dollars) to toast his bread?

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.