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A(n) x-ray photon has a wavelength of 7.80 ✕ 10−9 cm. Find the momentum, the frequency,...

A(n) x-ray photon has a wavelength of 7.80 ✕ 10−9 cm. Find the momentum, the frequency, and the energy of the photon in electron volts. (a) the momentum kg · m/s (b) the frequency Hz (c) the energy of the photon in electron volts eV Im having trouble. please help

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