What did the International Astronomical Union classify Pluto as in 2006?
a. asteroid
b. comet
c. planet
d. dwarf planet
e. meteor
d
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Water flows through pipe A into pipe B. Pipe B is larger and has three times the cross-sectional area that pipe A has. Compared to the speed of the water in pipe A, the speed in pipe B is:
A. 1/3 B. 1/2 C. the same D. 3X E. 9X
The attraction of a person's body toward Earth is called weight. The reaction to this force is
A) the person's body pushing against Earth's surface. B) Earth's surface pushing against the person's body. C) the person's body pulling on Earth. D) none of the above
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Answer the following statement true (T) or false (F)
The rest energy of a particular subatomic particle is 1200 MeV. If this particle is traveling at 90% the speed of light, what is its total relativistic energy?