By how much is the FOV (field of view) enlarged from Figure 1 to Figure 3?
a. 100 b. 1 × 10^5
c. 1,000 d. 10,000
d
RATIONALE: 100x100
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Wire A and Wire B are each carrying the same current. If the diameter of Wire A is twice that of Wire B, how does the drift velocity vdA in Wire A compare to that in in Wire B?
a. vdA = vdB b. vdA = 2 vdB c. vdA = vdB /2 d. vdA = vdB /4
Tuning forks #1, #2, and #3 each have slightly different frequencies.When #1 and #2 are sounded together, a beat frequency of 3 Hz results. When #2 and #3 are sounded together, a beat frequency of 5 Hz results. If the frequency of #1 is 100 Hz, which of the following cannot be the frequency of #3?
a. 92 Hz b. 95 Hz c. 98 Hz d. 102 Hz e. 108 Hz
The force required to maintain a constant velocity for an astronaut in free space is equal to
A) zero. B) the mass of the astronaut. C) the weight of the astronaut. D) the force required to stop the astronaut. E) none of the above
If Uranus takes 84 years to orbit the Sun, and Voyager 2 found its rings wide open at solstice in 1989, when will or did they next appear edge on, as seen from Earth?
A) 1995 B) 2003 C) 2010 D) 2025 E) They can never appear edge on, due to Uranus' 98 degree axial tilt.