A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The period of the electromagnetic oscillations in the circuit is
a. 0.0227 s.
b. 0.377 s.
c. 2.26 s.
d. 105 s.
e. 1750 s.
b
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The direction of polarization of an electromagnetic wave is taken by convention to be
A. the electric field direction.
B. the magnetic field direction.
C. the direction of 
D. perpendicular to the electric field direction.
E. None of these choices are correct.
Four identical particles (mass of each = 0.40 kg) are placed at the vertices of a rectangle (2.0 m × 3.0 m) and held in those positions by four light rods which form the sides of the rectangle. What is the rotational inertia of this rigid body about an axis that passes through the mid-points of the longer sides and is parallel to the shorter sides?
a. 2.7 kg/m2 b. 3.6 kg/m2 c. 3.1 kg/m2 d. 4.1 kg/m2 e. 1.6 kg/m2
In light of modern solar system theory, why do the orbits of the planets all lie in the same plane?
A) The Sun's gravity forced them into these orbits. B) The angular momentum of the solar system was kept to a minimum this way. C) The early solar nebula flattened into a disk. D) Comets would have wiped out any not in this protected plane. E) This happened purely by chance.
Stellar models can easily be accomplished by using a simple hand calculator
a. True b. False Indicate whether the statement is true or false