The diameter of a typical star (the sun) is approximately ____ times larger than the diameter of a typical planet (the Earth)

a. 10
b. 100
c. 1000
d. 10,000
e. 100,000


B

Physics & Space Science

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The Milky Way galaxy is part of

a. the Virgo cluster. b. the Large Magellanic Cloud. c. the Small Magellanic Cloud. d. the Local Group. e. a rich cluster.

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Which object has zero acceleration?

A) one at rest B) one moving at constant velocity C) one in mechanical equilibrium D) all of the above E) none of the above

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A holographic plate produces an image for the viewer that is:

A. real B. virtual C. may be either virtual or real

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A 6.0-m wire with a mass of 50 g, is under tension. A transverse wave, for which the frequency is 810 Hz, the wavelength is 0.40 m, and the amplitude is 4.0 mm, is propagating on the wire

The time for a crest of this wave to travel the length of the wire is closest to A) 19 ms. B) 16 ms. C) 21 ms. D) 23 ms. E) 25 ms.

Physics & Space Science