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Physics, 03.08.2020 14:01 dianekobasher

an elastic cord 61 cm long when a weight of 75N hangs from it, but 85cm when a weight of 210N hangs from it. what is the spring constant of the cord

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an elastic cord 61 cm long when a weight of 75N hangs from it, but 85cm when a weight of 210N hangs...
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