The free end of a torsional spring deflects through 90° when subjected to a torque of 4 n-m. the spring index is 6. determine the coil wire diameter and number of turns with the following data: modulus of rigidity 80 gpa ; modulus of elasticity 200 gpa; allowable stress = 500 mpa.

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages