The rotation period of Uranus was measured through:
A) observations of the motions of its satellites.
B) observations of the features on its cloud surface.
C) observations of radio signals associated with its magnetosphere.
D) observations of its motion around the Sun.
E) observations of Neptune's motion around the Sun.
C
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A(n) ______ is the digital file that specifies the combination of character data.
A. typeface B. font C. serif D. font-family
Which of the following compounds would not precipitate from an aqueous solution during a double-replacement reaction?
a. Cu(NO3)2 b. CuCO3 c. AgCl d. AlPO4
An incredibly dense star so massive that light cannot escape from its surface is called a _______________
a. red giant b. black hole c. white dwarf d. pulsar
An object moves in a direction parallel to its length with a velocity that approaches the velocity of light. The length of this object, as measured by a stationary observer,
A) approaches infinity. B) approaches zero. C) increases slightly. D) decreases slightly. E) does not change.