When the mass of a simple pendulum is tripled, the time required for one complete vibration
A) increases by a factor of 3.
B) does not change.
C) decreases to one-third of its original value.
D) decreases to 3/4 of its original value.
E) increases to 4/3 of its original value.
B
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A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is
a. 0.5 s. b. 2 s. c. 5 s. d. 10 s. e. not determinable.
A traveling wave train has wavelength 0.400 m, speed 35.0 m/s. Find the wave frequency
a. 0.0114 Hz b. 43.8 Hz c. 87.5 Hz d. 21.9 Hz e. 55.3 Hz
If an object remains at rest, then the sum of both the external torques and the external forces on the object must be zero
A) True B) False
When there is a changing magnetic flux through an electric circuit, the direction of the induced current in the circuit is determined by ________ Law.
Fill in the blank(s) with the appropriate word(s).