A spring whose natural length is 14cm exerts a force of 53N when stretched to a length of 18cm. (a) Find the spring constant (in newtons/meter). k= i N/m (b) Find the work that is done in stretching the spring 2 cm beyond its natural length. Round your answers to four decimals, if necessary. Work = J (c) Find the work done in stretching the spring from a length of 19cm to a length of 24cm. Round your answers to four decimals, if necessary.

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