If the binding energy of an electron in a hydrogen atom is
If the binding energy of an electron in a hydrogen atom is 6.41?10^-19 J, what wavelength of photon is required to liberate it from the atom? Planck's constant = 6.626 ? 10^-34 J×s; c = 3.00?10^8 m/s
a.1.53 mm
b. 641 nm
c. 311 nm
d. 2.18 mm
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A 332 kg piano slides 3.54 m down a 31.2° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Calculate the net work done on the piano
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In a particular sample, the C13 NMR spectrum showed a signal 25ppm and another signal at 72.3 ppm. if the reference frequency for C13 on the instrument were 25.1 MHz what is the difference between the frequency of each signal and the reference fre
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