Mass on a Spring: An object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its elastic potential energy is a maximum?
A. at either A or B
B. midway between A and B
C. one-third of the way between A and B
D. one-fourth of the way between A and B
E. at none of these points
Answer: A
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A film of index of refraction n1 coats a surface with index of refraction n2. When n1
A.
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What will be an ideal response?