The bulk modulus of aluminum is
If the density of aluminum is
then what is the speed of sound in aluminum?
A. 4,500 m/s
B. 4,700 m/s
C. 4,900 m/s
D. 5,100 m/s
E. 5,500 m/s
D. 5,100 m/s
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A decibel is a measure of a sound's
A) frequency. B) wavelength. C) speed. D) loudness. E) all of the above
The lamps in a string of Christmas tree lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wires leading to the lamps.)
A) The brightness of the lamps will not change appreciably. B) The other lamps get dimmer equally. C) The other lamps get brighter equally. D) The other lamps get brighter, but some get brighter than others. E) The other lamps get dimmer, but some get dimmer than others.
If Venus' clouds block much of the sunlight before it reaches the surface, why is the planet so hot?
What will be an ideal response?
What does "IR" stand for?
a. ultraviolet c. high frequency b. muon neutrino d. infrared