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Physics, 22.06.2019 22:00, jayonelijah
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.
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Physics, 23.06.2019 03:50, kiylabeasty7302
Asimple electrochemical cell contains two electrodes? t or f
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Physics, 23.06.2019 14:30, austind9027
Two atoms with different mass number but the same atomic number are called a) elements. b) ions. c) isotopes. d) nuclei.
Answers: 2
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