Double the frequency of musical note and you double its
A) wavelength.
B) speed.
C) amplitude.
D) all of the above
E) none of the above
Answer: E
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Which of the following best describes what we mean by gravitational lensing?
A) A massive object bends light beams that are passing nearby. B) A massive object scatters away the light of more distant objects. C) Gravity causes matter that would otherwise be dark to become visible. D) Telescope lenses are distorted by gravity.
A 10 kg solid cylinder (I = 1/2 
) with a radius of 30.0 cm is rotating about a vertical axis through its center. If the angular momentum is increasing at the rate of 25 kg 
then what is the torque?
A. 70 N•m B. 45 N•m C. 37 N•m D. 25 N•m E. 12 N•m
Martian volcanoes are _______________ volcanoes with gradual slopes
Fill in the blank(s) with correct word
Stars in the upper right part of the Hertzsprung-Russell diagram are always ____ when compared to stars near the middle of the diagram
a. cooler b. brighter as seen from Earth c. larger d. smaller e. more massive