Suppose Venus rotated as fast as Earth. How would this change its relative levels of volcanism, tectonics, and erosion?
a. All would remain the same—they are independent of rotationz
b. All three would be higher.
c. All three would be lower.
d. Levels of volcanism and tectonics would stay the same, but erosion levels would be higher.
e. Levels of volcanism and tectonics would be higher, and erosion levels would stay the same.
Answer : d. Levels of volcanism and tectonics would stay the same, but erosion levels would be higher.
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In an inelastic collision between two objects with unequal masses:
a. the velocity of one will increase by the amount that the velocity of the other decreases. b. the momentum of one will increase by the amount that the momentum of the other decreases. c. the energy of one increases by the amount that the energy of the other decreases. d. the total momentum of the system will decrease.
A 8.0-m long wire with a mass of 10 g is under tension. A transverse wave for which the frequency is 570 Hz, the wavelength is 0.10 m, and the amplitude is 3.7 mm is propagating on the wire
The maximum transverse acceleration of a point on a wire is closest to A) 47,000 m/s2. B) 41,000 m/s2. C) 35,000 m/s2. D) 29,000 m/s2. E) 53,000 m/s2.
A brass rod of length L 5 0.75 m is twisted by torques T until the angle of rotation between the ends of the rod is 3.58. The allowable shear strain in the copper is 0.0005 rad. The maximum permissible diameter of the rod is approximately:
(A) 6.5 mm
(B) 8.6 mm
(C) 9.7 mm
(D) 12.3 mm
Consider the two inductors shown below (which are in independent circuits). The induced emf in each inductor is such that the inductor behaves like a battery with its positive end to the right. 
Which inductor carries the larger current?
A. Inductor 1 B. Inductor 2 C. The current or change in current is the same in both. D. One needs more information to answer the question.