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1. A line in the spectrum of atomic mercury has a wavelength of 254 nm. When mercury emits a photon of light at this waveleng
2. What is the energy of a photon of blue light that has a wavelength of 453 nm?
3. What is the wavelength of light that is emitted when an excited electron in the hydrogen atom falls from n=5 to n = 1?
the wavelength of a 149-g baseball traveling at 97.2 mph? (1 mi = 1.609 km)
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Answer #1

1. We have the relation, e=uxa stere er 2540m = 2.54x107m, = 3x108 m/s, v=? 9 2:54x10-7 S - I 181x10455-1.181 X10S HZ v=9 =

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oten yawa


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