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Spring constants
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An elastic cord is 65 cm long when a wieght of 75N hangs from it but is 85 cm long when a weight of 180 N hangs from it. What is the "spring" constant k of this elastic cord. I know that k= f/x. Separately, than gives you: 75N/0 .65m = 115.4N/m and 180N/.85m= 211.8N/m. But I...
Constants in nature and mathematics
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