Double the frequency of a musical note and you halve its
A) wavelength.
B) speed.
C) amplitude.
D) all of the above
E) none of the above
Answer: A
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Your mass on the moon will be about one-sixth of your mass on Earth
Indicate whether the statement is true or false
Suppose Earth collapsed down to one-tenth of its present radius, while retaining all of its present mass. Compared to your present weight, your weight would then be
A) unchanged. B) increased by a factor of 100. C) increased by a factor of 10. D) reduced by a factor of 10. E) reduced by a factor of 100.
Chemical energy is transformed into gravitational energy when
A) a leaf undergoes photosynthesis. B) a person walks uphill. C) water evaporates. D) a car accelerates. E) a block slides downhill.
Which of the following is NOT true about pseudo streaming?
A. Files are typically small. B. Another term for pseudo streaming is progressive downloading. C. The term pseudo means fake or simulated. D. There may be delays in playback as it downloads.