The quantity called the "enclosed mass" M(

A) concentrated in the center
B) spread out over a large volume
C) distributed in the shape of a doughnut, with a hole in the center
D) impossible to say


A

Physics & Space Science

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What is the average translational kinetic energy of an ideal gas at 819K The Boltzmann constant is 1.38 × 10-23 J/K

A) 1.70 x 10-20 J B) 5.65 x 10-21 J C) 1.13 x 10-17 J D) 3.77 x 10-19 J

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The percentage of 235U, as a fraction of the total uranium content, in a uranium fission bomb is closest to

A) 50 percent. B) 20 percent. C) 1 percent. D) 90 percent. E) 5 percent.

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From hottest to coolest, the order of the spectral types of stars is

A) OBAFGKM. B) OBAGFKM. C) ABFGKMO. D) OMKGFBA. E) ABCDEFG.

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