Give some examples of simple harmonic motion:
a. Mass and spring
b. pendulum
c. light
d. a and B
Ans: d. a and B
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A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How long is the jumper in the air before returning to the Earth?
A) 0.21 s B) 0.42 s C) 0.84 s D) 1.3 s E) 1.6 s
All four of the giant outer planets—Jupiter, Saturn, Uranus, and Neptune—have rings
Indicate whether the statement is true or false
Transformers: When 5.0 A at 110 V flows in the primary of an ideal transformer, how many amps at 24 V can flow in the secondary?
A. 1.1 A B. 4.6 A C. 5.0 A D. 23 A
The loss of an electron from a neutral helium atom results in
A) neutral hydrogen. B) ionized hydrogen. C) ionized helium. D) neutral deuterium. E) ionized deuterium.