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Vibration of an object about an equilibrium point is called simple harmonic motion when the restoring force is proportional to a. time. c. a spring constant. b. displacement. d. mass.
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Asked 11/20/2014 8:42:15 AM
Updated 11/20/2014 10:08:15 AM
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Confirmed by jeifunk [11/20/2014 10:08:15 AM]
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User: Vibration of an object about an equilibrium point is called simple harmonic motion when the restoring force is proportional to a. time. c. a spring constant. b. displacement. d. mass.

Weegy: Vibration of an object about an equilibrium point is called simple harmonic motion when the restoring force is proportional to displacement.



User: Why is the right side of the equation F = -kx negative? a. Because movement is downward c. Because force is opposite of discplacement b. Because force is against the acceleration of gravity d. Because the acceleration due to gravity is negative

Question
Asked 11/20/2014 8:42:15 AM
Updated 11/20/2014 10:08:15 AM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/20/2014 10:08:15 AM]
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The right side of the equation F = -kx is negative because force is opposite of displacement. The force exerted by the spring is said to be a restoring force that's why it acts opposite to the displacement.

Added 11/20/2014 10:06:26 AM
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How can a pendulum be used to determine local gravitational acceleration? a. Measure the length and period c. Measure the frequency and period b. Measure the period only d. Measure the frequency only
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Updated 11/20/2014 9:19:14 AM
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A pendulum be used to determine local gravitational acceleration : Measure the length and period.
Added 11/20/2014 9:19:14 AM
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