Wave period is the reciprocal of
a. amplitude.
b. frequency.
c. wave velocity.
d. all of these.
b
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Though Titan has a small mass , it is able to retain an atmosphere because it
a. is very cold. b. is very hot c. has an iron surface. d. attracts gas from the solar wind.
A common approximation is when the intensity of a sound is doubled, the decibel level increases by 3 . The sound level in a particular location is 100 dB. By what approximate factor is the sound intensity increased if the new decibel level of this sound is 106?
a. 2 b. 3 c. 4 d. 6
Doug hits a hockey puck, giving it an initial velocity of 7.0 m/s. If the coefficient of kinetic friction between ice and puck is 0.050, how far will the puck slide before stopping?
a. 19 m c. 37 m b. 25 m d. 50 m
Consider a situation where a constant force of 25N acts on an object having a mass of 2 kg for 3 seconds. What is the impulse provided by the force?
a. 150 Ns b. 50 Ns c. 75 Ns d. undetermined—not enough information given e. none of the above