Which of the following is evidence of past internal activity on Mercury?
A. Vents
B. "the Spider"
C. "Hollows"
D. Scarps
E. All of these choices are correct
Answer: E
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A charged particle moving in the magnetic field created by an external magnet experiences a force that is perpendicular to both the particle’s velocity 
and the direction of the magnetic field 
in the sense indicated by your right thumb if your right index finger points in the direction of and your adjacent finger points in
the direction of . (The magnetic field , in turn, points away from the external magnet’s north pole and toward its south pole.) A certain radioactive substance emits quantons that, when placed in a magnetic field directed away from the observer, bend to the right side of their direction of travel. These nuclei are decaying via which kind of process?
A. An alpha decay process
B. A beta decay process
C. A gamma decay process
D. There is not enough information to specify.
Compared to a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much
A) inertia. B) mass. C) volume. D) all of the above E) none of the above
At t = 0, a particle leaves the origin with a velocity of 5.0 m/s in the positive y direction. Its acceleration is given by 
m/s2. At the instant the particle reaches its maximum y coordinate how far is the particle from the origin?
A. 11 m B. 16 m C. 22 m D. 29 m E. 19 m
Which thermodynamic law says that you cannot convert 100 percent of a heat source into mechanical energy?
A) first law of thermodynamics B) second law of thermodynamics C) third law of thermodynamics D) law of increasing entropy