What is the spring constant of elastic cord

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Q. An elastic cord is 64cm long when a weight of 53N hangs from it and is 88cm long while a weight of 85N hangs from it. What is the "spring" constant of this elastic cord?

Q. The fuel gage for a gasoline tank in the car reads proportional to the bottom gage pressure .if the tank is 30cm deep and accidentally contains 2 com of water plus gasoline how many centimetres of air remain at the top when gage erroneously reads full?

Reference no: EM1382277

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