If the speed of an object in uniform circular motion is tripled while the radius remains constant the centripetal acceleration is multiplied by a factor of
A. 9
B. 3
C. 1
D. 1/3
E. 1/9
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Uniform Circular Motion: The curved section of a horizontal highway is a circular unbanked arc of radius 740 m. If the coefficient of static friction between this roadway and typical tires is 0.40, what would be the maximum safe driving speed for this horizontal curved section of highway?
A. 54 m/s B. 52 m/s C. 50 m/s D. 48 m/s E. 46 m/s
As you move farther away from a source emitting a pure tone, the frequency of the sound you hear decreases
a. True b. False Indicate whether the statement is true or false
Because of the equivalence of energy and mass, a gamma ray, which is a high energy photon, can "disappear," and in its place there will be produced an electron and a positron, which both have mass
a. True b. False Indicate whether the statement is true or false
A type of cloud composed of ice crystals is the
a. altostratus. b. cirrostratus. c. stratus. d. nimbostratus.