Most stars in the Milky Way's halo are
A) very old.
B) found inside molecular clouds.
C) very young.
D) blue or white in color.
A
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Which type of binary gives information about the star sizes in addition to the combined masses?
A. eclipsing binary B. spectroscopic binary C. visual binary D. apparent binary E. astrometric binary
When Philadelphia's temperature is 40°F and Miami's temperature is 80°F,
A) Miami is twice as hot as Philadelphia. B) Miami is warmer than Philadelphia. C) both of these D) neither of these
When you push on a stationary object on a horizontal surface and it doesn't move, what kind of force is most likely opposing your efforts?
a. Static friction force b. Sliding friction force c. Lubricant friction force d. Gravitational force e. Normal Force
The brightest planet has an apparent magnitude of about – 4 and is named
a. Jupiter. b. Saturn. c. Mars. d. Venus.