Estimate the rotational energy (in eV) for a diatomic hydrogen molecule in the L = 2 quantum state. (The equilibrium separation for the H2 molecule is 0.075 nm.)
A)
0.011 eV
B)
0.022 eV
C)
0.033 eV
D)
0.044 eV
E)
0.055 eV
D
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A) about 10 trillion B) thousands C) an infinite number D) about 100 billion E) several
In a collision between two unequal masses, which mass receives a greater magnitude impulse?
A) the smaller mass B) the larger mass C) They receive equal impulses.
In a diffraction experiment, light of 600. nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen
A second monochromatic source produces a third-order maximum 0.870 mm from the central maximum when it passes through the same diffraction grating. What is the wavelength of the light from the second source?
Voids are
A. spaces between stars. B. regions in the centers of galaxies containing many black holes. C. spaces between galaxies within a cluster. D. huge regions of space with few or no galaxies.