Reverberation is a phenomenon you would be most likely to hear if you sing in
A) the shower.
B) a small drape-covered room.
C) a large drape-covered room.
D) the desert.
Answer: A
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Characteristics of Waves: Which one of the curves shown in the figure best represents the variation of wave speed v as a function of tension for transverse waves on a stretched string?
A. A B. B C. C D. D E. E
The position of a particle as it moves along the x axis is given for t> 0 by x = (t3? 3t2 + 6t) m, where t is in s. Where is the particle when it achieves its minimum speed (after t = 0)?
A. 3 m B. 4 m C. 8 m D. 2 m E. 7 m
How is chromatic aberration corrected in large astronomical reflecting telescopes?
A. a combination of lenses designed to cancel the aberrations B. use a parabolic mirror instead of a spherical mirror C. a properly constructed telescope has no aberration D. change the resolution of the telescope
It can be shown that the approximate age of the universe is 1/H, where H is the Hubble constant. Taking H = 20 km/s/Mly, estimate the age of the universe, in years
A) 1500 years B) 15 thousand years C) 15 million years D) 15 billion years E) 15 trillion years