The discovery of Eris ________

A) was surprising, since we thought we knew about all large objects in the solar system
B) was not surprising, because other Kuiper belt objects approaching the size of Pluto had already been discovered
C) was not surprising, because the existence of a massive "Planet X" had been predicted nearly a century ago
D) was surprising, due to its "backwards" orbit around the Sun


B

Physics & Space Science

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Which are consequences of different speeds of light in different media?

A) mirages B) rainbows C) brilliant colors of diamonds D) all of the above E) none of the above

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Constant Angular Acceleration: How long does it take for a rotating object to speed up from 15.0 rad/s to 33.3 rad/s if it has a uniform angular acceleration of 3.45 rad/s2?

A. 4.35 s B. 5.30 s C. 9.57 s D. 10.6 s E. 63.1 s

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A 10-gram wire that is 6.0 m long is under tension. When a transverse wave of frequency 280 Hz travels along the wire, its wavelength is 0.60 m,and its amplitude is 8.4 mm

How much time does it take for a crest of the transverse wave to travel the length of the wire? A) 36 ms B) 31 ms C) 40 ms D) 44 ms E) 49 ms

Physics & Space Science

Asteroid 2004 MN4 is predicted to strike Earth in 2029

a. True b. False Indicate whether the statement is true or false

Physics & Space Science