Question: How much work is done by a variable force F(x) = = N that moves an object along a straight line in the direction of

 How much work is done by a variable force F(x) == N that moves an object along a straight line in the
direction of F from x = 3 m to x = 5m? (Express numbers in exact form. Use symbolic notation and fractions where

How much work is done by a variable force F(x) = = N that moves an object along a straight line in the direction of F from x = 3 m to x = 5 m? (Express numbers in exact form. Use symbolic notation and fractions where needed.) W =1 An external force of 4 lb is required to keep a spring stretched to E ft longer than its equilibrium length. What is its spring constant

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