Suppose there is an object for which F = +kx. What will happen if the object is moved away from equilibrium (x = 0) and released?
a. It will return to the equilibrium position.
b. It will move further away with constant velocity.
c. It will move further away with constant acceleration.
d. It will move further away with increasing acceleration.
d
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If you want to cross a river in a motorboat in the least amount of time (least time in water), you should head
A) straight across the river. B) slightly upstream. C) slightly downstream. D) the time will be independent of how you head your boat E) directly downstream.
Siddhartha saved up money from his summer job to buy a powerful home theater system. When shopping for the best buy in a home theater system the sales representative informs Siddhartha that the more expensive models are worth the money because they ____.
A) amplify sound up to 160 dB B) boost frequencies below 80 Hz C) buffer sounds that reach 60 dB D) filter out frequencies below 10000 Hz
When rubbing two insulators together, the one that gets a positive charge has had
A. protons added. B. protons removed. C. electrons added. D. electrons removed. E. electrons added and protons removed.
What is a Bénard cell?
What will be an ideal response?