A hydrogen atom in an excited state emits a photon of wavelength 95 nm. Select the
initial and final states of the hydrogen atom.
Rydberg formula for hydrogen
vac is the wavelength of the light emitted in vacuum,
RH is the Rydberg constant for hydro
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9-The Tevatron accelerator at the Fermi National Accelerator Laboratory (Fermilab)
outside Chicago actually consists of 5 stages to sequentially boost protons to 1 TeV (1000
GeV). What is the speed of the proton at the end of each stage? Note: the numbers
1-A swimmer wants to swim straight across a river with current flowing at a speed of v1 =
0.27 km/h. If the swimmer swims in still water with speed v2 = 0.81 km/h, at what angle
should the swimmer point upstream from the shore and at what speed v will the