(a) A hydrogen atom goes from the n = 5 state to the n = 2 state. Is this an absorption or an emission? Does the energy of the atom increase or decrease? What is the sign of ΔE? (b) Answer the same questions for a transition from the n=1 to the n = 3 state.

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Q: 12. What is the frequency of a 1.31 x 10-2' J wave? What is its wavelength?

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Q: A certain microwave oven delivers 750. watts (J/s) of power to a coffee cup containing 100.0 g water…

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