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(a) If an electron makes a transition from the n = 4 Bohr orbit to the n = 3 orbit, determine the wavelength of the photon created in the process.
nm
(b) Assuming that the atom was initially at rest, determine the recoil speed of the hydrogen atom when this photon is emitted.
m/s
Determine the eccentricity of the orbit of Uranus
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What is the minimum speed in km/s , with which a metoer strikes the top of the earths stratosphere (about 14km above earths surface) assuming that the meteor being as a bit of interplanetary debris far from earth? Assume the drag force is neglible un..
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