A mass of 5 kg is released from rest on a smooth incline making an angle of 37° to the horizontal. The radial component of acceleration is closest to:
6
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How do small stars die? About how large are their remnants?
A. They become white dwarfs, about the size of the Earth. B. They go supernova, then form neutron stars about the size of a country. C. They become black holes, about the size of a marble. D. They go nova, then form black holes about the size of a person. E. They become neutron stars, about the size of a city.
Olympus Mons is
A) a huge shield volcano on Mars. B) a huge stratovolcano on Venus. C) a large lava plain on the Moon. D) a great canyon on Mars.
The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III
?
The object is never at rest.
a.
True
b.
False
The frequency of red light is ________ that of a green light.
A. greater than B. the same as C. less than D. greater than, the same as, or less than, depending on a source of light