In each of the cases (a) and (b) shown below the electric and magnetic fields in an electromagnetic wave point in the directions shown as the wave passes a certain point P. [ 
points away from the viewer in case (b).] 
In which direction is the wave moving?
A. A
B. B
C. C
D. D
E. Toward the viewer
F. Away from the viewer
T. This is impossible.
F. Away from the viewer
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All of the Asteroids in the Asteroid Belt together have
A. a tiny fraction of Earth's mass. B. a mass somewhere between the mass of Mars and the mass of Jupiter. C. about Earth's mass. D. about ten times Earth's mass.
Two flat conductors are placed with their inner faces separated by 6.0 mm. If the surface charge density on one of the inner faces is 40 pC/m2, what is the magnitude of the electric potential differences between the two conductors?
a. 36 mV b. 18 mV c. 32 mV d. 27 mV e. 14 mV
In a police ballistics test, a 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. The bullet goes through the block almost instantaneously and emerges with 50.0% of its original speed
What is the speed of the block just after the bullet emerges? A) 1.50 m/s B) 2.97 m/s C) 3.00 m/s D) 273 m/s
A 2.00 kg pendulum bob on a string 1.50 m long, is released with a velocity of 3.00 m/s when the support string makes an angle of 45.0 degrees with the vertical. What is the tension in the string at the bottom of the swing?
A. 53.5 N B. 49.8 N C. 43.1 N D. 37.5 N E. 30.2 N