Helium fusion results in the production of
A) iron. B) nitrogen. C) carbon. D) oxygen. E) hydrogen.
C
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The dying glow of the Big Bang is called the ______________
Fill in the blank(s) with correct word
Which of the following statements is true?
A. A submerged submarine will displace its own weight of water B. A floating ocean liner will displace its own volume of water C. A floating ocean liner will displace its own weight of water D. None of these statements are true
John throws a rock down with speed 20 m/s from the top of a 30-m tower. If g = 9.8 m/s2 and air resistance is negligible, what is the rock's speed just as it hits the ground?
a. 12 m/s c. 31 m/s b. 28 m/s d. 78 m/s
The equivalence principle can be best illustrated by ____
a. a person riding in an elevator b. a rocket coasting through space at a constant velocity c. the change in mass of a moving body d. the formation of energy by nuclear fusion e. a car ride on a highway with the windows open