What is the typical age for a globular cluster associated with our Milky Way?
A) a few million years
B) 200 million years
C) a billion years
D) 10-12 billion years
E) 45 billion years
D
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Acceleration: Under what condition is average velocity equal to the average of the object's initial and final velocity?
A. This can only occur if there is no acceleration. B. The acceleration is constant. C. This can occur only when the velocity is zero. D. The acceleration must be constantly increasing. E. The acceleration must be constantly decreasing.
A creature that is scaled up in size, keeping its proportions,
A) will be stronger relative to its greater weight. B) will be weaker relative to its greater weight. C) both of these D) neither of these
A string with a fixed frequency vibrator at one end is subjected to varying tensions. When the tension is 20 N, a resonance with 3 antinodes results. What tension would cause a resonance with 2 antinodes in this string?
a. 30 N b. 45 N c. 80 N d. 8.9 N e. 13 N
A 10 solar mass main sequence star will produce which of the following remnants?
A) black hole B) white dwarf C) neutron star D) none of the above