Which is a unit of power?
a. kWh
b. W/s
c. A??
d. J/s
d
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A commercial jet flies above a region of the earth where the earth’s magnetic field points nearly (a) straight upward, which part of the airplane becomes negatively charged?
A. Its nose B. Its tail C. Its top D. Its bottom E. Its left wing F. Its right wing T. (No part becomes charged.)
The EPR argument assumes which of the following to conclude that quantum mechanics is incomplete?
A. Quantons must have objectively real properties. B. Superluminal communication is impossible. C. Both assumptions. D. Neither assumption.
Brewster's Angle: Find Brewster's angle for light in air that is reflected from the top of a water surface. The index of refraction of the water is 1.33.
A. 53.1° B. 36.9° C. 56.3° D. 60.2° E. 90.0°
The pressure at the bottom of a glass of fresh water (P = 1000 kg/m3) is P. The water is poured out and is replaced with seawater. The new pressure at the bottom of the glass is
1.smaller than P. 2.equal to P. 3.greater than P. 4.indeterminate.