Which of these is not a product of plate tectonics and hot spots?
A) Hawaii
B) Yellowstone and Old Faithful
C) The Mid Atlantic Rift
D) The Andes
E) The Grand Canyon's eroded depths
E
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A wheel rotating about a fixed axis with a constant angular acceleration of 2.0 rad/s2 turns through 2.4 revolutions during a 2.0-s time interval. What is the angular velocity at the end of this time interval?
A. 9.5 rad/s B. 9.7 rad/s C. 9.3 rad/s D. 9.1 rad/s E. 8.8 rad/s
A double-slit interference experiment is performed in the air. Later, the same apparatus is immersed in benzene (index of refraction, n = 1.50), and the experiment is repeated
When the apparatus is in benzene, you observe the interference fringes to be A) more closely spaced as when the apparatus is in air. B) equally spaced as when the apparatus is in air. C) more widely spaced as when the apparatus is in air. D) Impossible to tell without knowing the wavelength of light in use. E) Impossible to tell without knowing the separation between the slits.
Two parallel conducting plates form a capacitor. It is isolated and a charge Q is placed on it. A metal cylinder of length half the plate separation is then inserted between the plates
HOW MANY of the quantities
C, ?V, Q, E, and U change?
A 0.12-m radius grinding wheel takes 2.1 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?
a. 9.6 rad/s2 c. 1.6 rad/s2 b. 4.3 rad/s2 d. 0.33 rad/s2