For every natural process, the entropy of the universe
a. is destroyed.
b. decreases.
c. increases.
d. remains constant.
c
Physics & Space Science
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If a wave pulse is reflected from a free boundary, which of the following choices best describes what happens to the reflected pulse?
a. becomes inverted b. remains upright c. halved in amplitude d. doubled in amplitude
Physics & Space Science
Our local group is situated
A) within a major supercluster. B) directly between two major superclusters. C) relatively distant from any supercluster.
Physics & Space Science
Which is the strongest fundamental force?
A) gravitational force. B) electric force. C) nuclear strong force. D) none of the above
Physics & Space Science
What is the purpose of having automobile air bags?
Physics & Space Science