If the material that formed the Moon was ejected by Earth due to a rapid rotation rate, what can we predict about the composition of moon rocks collected by Apollo astronauts?
A. Moon rocks should have a completely different composition than rocks found on Earth.
B. Moon rocks should have some similar and some different compositional characteristics.
C. Moon rocks should have a composition that is the same as Earth's crust.
D. Moon rocks should have the same composition as rocks found on and inside Earth.
Answer: C
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A) metamorphic B) igneous C) meteoritic D) sedimentary
You have observed a star and classified it as a white dwarf. It has a surface temperature of 3000 K and a luminosity of 10?3 times that of the Sun star based on its position in the H-R diagram. Can you determine its mass by plotting its position on an H-R diagram?
A) Yes, its mass is 0.3 MSun. B) Yes, its mass is 3 MSun. C) Yes, its mass is 30 MSun. D) No, a white dwarf's mass cannot be determined from its position on the H-R diagram.
A 0.16 pF parallel-plate capacitor is charged to 10 V. Then the battery is disconnected from the capacitor. When 1.00 × 10^7 electrons are now placed on the negative plate of the capacitor, the voltage between the plates changes by
a. -5.0 V. b. -1.1 V. c. 0 V. d. +1.1 V. e. +5.0 V.
A compact heat exchanger is proposed to heat tomato juice. The heat exchanger is to be constructed with finned tubes as shown in Figure 9-30, spacing C. The properties of the
