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Next question It takes a force of 43,416 lb to compress a coil spring assembly from its free height of 10 inches to its fully compressed height of 4 inches a. What is the assembly's force constant? b. How much work does it take to compress the assembly the first half inch? the second half inch? Answer to the nearest in-lb . . . a. k = Ib/in b. How much work does it take to compress the assembly the first half inch? in-lb (Round to the nearest whole number as needed.) How much work does it take to compress the assembly the second half inch? in-lb (Round to the nearest whole number as needed.)