the magnetic force on the proton 
A. The vector points in the +x direction.
B. The vector points in the -x direction.
C. The vector points in the +y direction.
D. The vector points in the -y direction.
E. The vector points in the +z direction.
F. The vector points in the -z direction.
T. The vector is zero.
D. The vector points in the -y direction.
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Force on a Moving Charge: If a calculated quantity has units of 
, that quantity could be
A. an electric field. B. an electric potential. C. ?0. D. a magnetic field. E. a magnetic torque.
A spring is stretched from its equilibrium position 10 cm when a 1 kg mass is attached to it. Removing the 1 kg mass and replacing it with a 0.50 kg mass then releasing the spring, how high will the 0.50 kg mass rise above the point where it is released?
A. 0.44 m B. 0.24 m C. 0.80 m D. 1.0 m
This figure shows the Cepheid period-luminosity relation. What is the approximate luminosity of a Cepheid star that varies in brightness with a period of 10 days?
A) about 1000 times the luminosity of the Sun B) about 3000 times the luminosity of the Sun C) about 10,000 times the luminosity of the Sun D) about 30,000 times the luminosity of the Sun
How are the "geological record" and the "fossil record" related?
A) the geological and fossil records are completely unrelated B) the fossil record is part of the geological record C) the geological record is part of the fossil record D) the geological record and the fossil record are just different names for the same thing