The internal energy of a monatomic ideal gas is equal to which of the following?
a. (3/2)PV
b. (3/2)nT/V
c. 3 T/P
d. none of the above
a
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If a = 30 cm, b = 20 cm, q = +2.0 nC, and Q = ?3.0 nC in the figure, what is the potential difference VA?VB?
A. +60 V B. +72 V C. +84 V D. +96 V E. +48 V
When a car goes around a curve of smaller and smaller radius, the centripetal force on it decreases
a. True b. False Indicate whether the statement is true or false
A plane has an airspeed of 142 m/s. A 16 m/s wind is blowing southward at the same time as the plane is flying. If the velocity of the plane relative to the ground is directly eastward, what is the magnitude of that velocity?
A) 141 m/s B) 160 m/s C) 130 m/s D) 16 m/s E) 48 m/s
Two sound waves traveling through the air have different frequencies. Consequently, they must also have different
a. amplitudes. b. speeds. c. wavelengths. d. all of the above