Author Question: The frequency of a wave is measured in a) hertz. b) vibrations per meter. c) meters per second. ... (Read 50 times)

meagbuch · **on:** Jul 28, 2018

The frequency of a wave is measured in
a) hertz.
b) vibrations per meter.
c) meters per second.
d) cycles.
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Question 2

A nonuniform 2.0-kg rod is 2.0 m long. The rod is mounted to rotate freely about a horizontal axis perpendicular to the rod that passes through one end of the rod. The moment of inertia of the rod about this axis is 4.0 kg/m2 . The center of mass of the rod is 1.2 m from the axis. If the rod is released from rest in the horizontal position, what is its angular speed as it swings through the vertical position?
a. 3.4 rad/s
b. 4.4 rad/s
c. 4.3 rad/s
d. 5.8 rad/s
e. 6.8 rad/s