Elliptical galaxies contain more gas, dust and young stars than do Sa galaxies
Indicate whether the statement is true or false
F
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Molecular Rotation: In its lowest quantum state, a diatomic quantum mechanical rotator has a rotational energy of
A. zero.
B. 
.
C. 
.
D. none of the given answers.
"Unless you look outside, you cannot tell how fast you are going." This is one way of stating
A) the relativity of space. B) the relativity of time. C) the principle of the constancy of lightspeed. D) Galileo's theory of relativity. E) the principle of relativity.
In the case of constant acceleration, the average velocity equals the instantaneous velocity:
a. at the beginning of the time interval. b. at the end of the time interval. c. half-way through the time interval. d. three-fourths of the way through the time interval.
A 120-V rms voltage at 60 Hz is applied across a series combination of a 20-?F capacitor and an unknown resistor. If the rms value of the current in the circuit is 0.60 A, what is the resistance of the resistor?
A) 60 ? B) 120 ? C) 180 ? D) 150 ? E) 200 ?