You note that a particular star is directly overhead. It will be directly overhead again in:
A) 1 hour.
B) 12 hours.
C) 23 hours 56 minutes.
D) 24 hours.
E) 24 hours 4 minutes.
C
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Diffuse, scattered light attributable to ground lighting sources
A. Circadian Rhythm
B. Glare
C. Vincent Van Gogh
D. International Dark-Sky Association
E. Shielding
F. Sky Glow
?The angle between two plane mirrors that meet at one edge is 45°. The change in direction of a ray that strikes the first mirror at a 60°angle of incidence when that ray reflects from the second mirror is
A. ?0°. B. ?45°. C. ?90°. D. ?150°. E. ?270°.
The coil of a generator has 50 loops and a cross-sectional area of 0.25 m2. What is the maximum emf generated by this generator if it is spinning with an angular velocity of 4.0 rad/s in a 2.0 T magnetic field?
A) 100. V B) 50. V C) 400. V D) 75. V E) 0. V
A 6.0-kg object exerts a force of 8.0 N on a 2.0-kg object. What is the magnitude of the force on the 6.0-kg object?