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 rotational 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
a
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The ____________________ describes blazars, Type 1 Seyferts, Type 2 Seyferts, and radio lobe galaxies as being produced by a dense disk of gas and a hot accretion disk around a super massive black hole at the core of a galaxy
Fill in the blank(s) with correct word
Exhibit 16-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below.
?
?
Use this exhibit to answer the following question(s).
Refer to . A point or points at which the object has positive velocity and zero acceleration is(are)
a.
B
b.
C
c.
D
d.
B and D
e.
A and E
Most stable types of nuclei have an ______________ number of protons and an ______________ number of neutrons
a. even; odd b. odd; odd c. odd; even d. even; even
An electric motor and electric generator differ in
A) the roles of input and output. B) basic construction. C) size. D) quality.