When viewing your image in a hand-held mirror, if you move the mirror away at a speed v, the image appears to:
a. also move away at v.
b. move away at 2v.
c. move away at v/2.
d. not move.
b
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A dam is thicker at the bottom than at the top mainly because
A) water is denser at deeper levels. B) water pressure increases with depth. C) surface tension exists only on the surface of liquids. D) it looks better. E) none of the above
What is the radius of curvature of the path of a 3.0-keV proton in a perpendicular magnetic field of magnitude 0.80 T?
A. 9.9 mm B. 1.1 cm C. 1.3 cm D. 1.4 cm E. 7.6 mm
For an electron in the M shell, find (a) the largest possible orbital angular momentum it can have, and (b) the smallest possible orbital angular momentum it can have
Express your answers in SI units, and for each case indicate the subshell (s, p, d, ...) of the electron.
1.50 moles of an ideal gas freely expands from 1.00 liter to 4.50 liters. The change in entropy in the expansion is
A. 5.80 J/K B. 8.50 J/K C. 16.3 J/K D. 18.7 J/K