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1) You are examining the light spectrum from a hot galactic gas. From the frequencies in the spectrum, you conclude that the gas is mostly made of hydrogen. From the relative intensities of each part of the spectrum, you deduce that for every 12 hydrogen atoms in the first excited state, there are 3 in the second excited state. In order to double check your conclusions about this gas's properties, you decide to predict how many hydrogen atoms are in the third excited state, relative to the 1st excited state (which you can then subsequently compare to measured values). Looking up in a table, you find that,
a) the ground state has an energy of -13.6 eV, with a degeneracy of 1
b) the first excited state has an energy of -3.4 eV with a degeneracy of 4
c) the second excited stat has an energy of -1.5 eV with a degeneracy of 9
d) the third excited state has an energy of -0.85 eV with a degeneracy of 16
4.38 grams of diatomic oxygen (O2) in a 1.75 liter container creates a pressure of 315,000 Pascals. find the root-mean-square velocity of the molecules
You need to make an ac generator with a sinusoidal output of 14.0 V amplitude and frequency 50 Hz. At what angular frequency should the coil be rotated
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A long solenoid that has 1,140 turns uniformly distributed over a length of 0.445 m produces a magnetic field of magnitude 1.00 10-4 T at its center. What current is required in the windings for that to occur
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Discuss (from lecture materials) the implications for sport managers and coaches/teachers in terms of what is required to overcome barriers to participation for people with disabilities, including practical examples (from both websites below) of m..
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