The Earth's density increases with depth. If instead the Earth had uniform density, but the same angular velocity and mass, how would its rotational kinetic energy compare to the actual value?
a. It would be the same as the actual value.
b. It would be less than the actual value.
c. It would be greater than the actual value.
d. More information is needed to find the answer.
C
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In composition, mass, and density, Jupiter is most like:
A) a huge comet. B) a gigantic asteroid. C) the Sun. D) a huge Kuiper belt Object. E) a large terrestrial planet.
An ac generator consists of a coil with 40 turns of wire, each with an area of 0.06 m2. The coil rotates in a uniform magnetic field B = 0.4 T at a constant frequency of 55Hz. What is the maximum induced emf?
A) 110 V B) 625 V C) 200 V D) 421 V E) 332 V
Aristotle's "continuous" model of matter was proved wrong about 1807 by
a. Bohr. b. Thomson. c. Dalton. d. Rutherford.
You can hear sound through an open window from sources that are not in your line of sight because of __________
Fill in the blank(s) with correct word