How are rocks classified?
Rocks are classified according to how they formed or originated.
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Electrons flow in a wire when there is
A) an imbalance of charges in the wire. B) a potential difference across its ends. C) a difference in potential energy across its ends. D) none of the above
A proton with a kinetic energy of 0.20 keV follows a circular path in a region where the magnetic field is uniform and has a magnitude of 60 mT. What is the radius of this path?
a. 4.1 cm b. 2.9 cm c. 3.4 cm d. 5.1 cm e. 2.4 cm
An ideal monatomic gas has a molar specific heat Cv at constant volume of:
A. R B. 3R/2 C. 5R/2 D. 7R/2 E. 9R/2
If you toss a coin straight upward while in a train moving at constant velocity, the coin will land
A) as if you were at rest. B) in front of you. C) in back of you.