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Q. A 0.5kg block is attached to a spring with spring constant 18 N/m. As the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 34cm/s.

what is the amplitude of subsequent oscillations

Q. A molecule of DNA (deoxyribonucleic acid) is 2.02 µm long. The ends of the molecule become singly ionized: negative on one end, positive on other. The helical molecule acts like a spring and compresses 1 percent upon becoming charged. Find out the effective spring constant of the molecule.

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Category:- Physics
Reference No.:- M9292638

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