A ________ happens when a white dwarf in a binary system accumulates more mass than the Chandrasekhar limit.
A. Type II supernova
B. Pulsar
C. Nova
D. Type Ia supernova
E. None of these choices is correct.
Answer: D
Physics & Space Science
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Astronomers estimate that the age of the Solar System is about ________ years.
A. 4.6 billion B. 4.6 million C. 4.6 trillion D. 13.7 billion
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Which of the following is not acceptable in the SI system of units?
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A solid sphere, a solid cylinder, and a hoop each have the same mass and radius. If they are spinning at the same angular velocity, which one has the greatest angular momentum?
a. the sphere b. the cylinder c. the hoop d. They all have the same angular momentum.
Physics & Space Science
Dr. Chuck projects a ball horizontally from a lab bench. If the projection speed of the ball were greater, the time in the air would be
A) less. B) the same. C) greater.
Physics & Space Science