The amplitude of a system moving with simple harmonic motion is doubled. The total energy will then be
a. 4 times as large
b. 3 times as large
c. 2 times as large
d. the same as it was
e. half as much
A
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Magnifying Glass With the Image at the Near Point of the Eye: A person with normal eyesight uses a converging lens of focal length 10 cm as a magnifying glass to finish an engraving job. To see detail, he holds the lens very close to his eyes. At what minimum distance from the job must he hold the lens?
A. 14 cm B. 7.1 cm C. 9.4 cm D. 30 cm E. 20 cm
Algebraic symbols in physics equations represent physical quantities, therefore
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Glass is transparent to
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What did COBE find regarding the smoothness of the cosmic background radiation?
What will be an ideal response?