If the angular frequency of the motion of a simple harmonic oscillator is doubled, by what factor does the maximum acceleration of the oscillator change?
A) 2
B) 4
C) It does not change.
D) 1/2
E) 1/4
B
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An interaction between a large and a small elliptical galaxy that results in a large spiral and a small elliptical galaxy takes:
A) several thousand years. B) several hundred thousand years. C) several million years. D) several hundred million years. E) several billion years.
Equilibrium: A light board that is 10 m long is supported by two sawhorses, one at one end of the board and a second at the midpoint. A 40-N weight is placed between the two sawhorses, 3.0 m from the end and 2.0 m from the center. What magnitude forces do the sawhorses exert on the board?
What will be an ideal response?
A particle (mass = 6.0 mg) moves with a speed of 4.0 km/s in a direction that makes an angle of 37° above the positive x axis in the xy plane. At the instant it enters a magnetic field of (5.0
) mT it experiences an acceleration of (8.0
) m/s2. What is the charge of the particle?
A. ?4.8 ?C B. 4.0 ?C C. ?4.0 ?C D. 4.8 ?C E. ?5.0 ?C
At what frequency does a 10-?F capacitor have a reactance of 1200 ??
A) 83 Hz B) 42 Hz C) 13 Hz D) 60 Hz