Where are most of the Milky Way's globular clusters found?
A. in the disk
B. in the bulge
C. in the halo
Ans: C. in the halo
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A mass of 40.0 grams is attached to a vertical spring with a spring constant k = 20.0 N/m and lowered slowly until the spring stops stretching. How much does the spring stretch?
A) 0.00200 m B) 0.0196 m C) 0.0816 m D) 0.800 m E) 0.200 m
Which has the greater density, a lake full of water or a cupful of lake water?
A) the cupful of lake water B) the lake C) both have the same density
The amplitude of a system moving with simple harmonic motion is doubled. The total energy will then be
a. 4 times as large b. 3 times as large c. 2 times as large d. the same as it was e. half as much
Standard time zones
a)contain 30° of latitude. b)contain 15° of longitude. c)are 12 in total number. d)are 7.5° wide.