What type of material comprises a coil spring?

What will be an ideal response?


A coil spring is a rod of steel that has been shaped in a spiral.

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The total movement of the cam follower in one complete revolution of the cam is called:

a. dwell b. displacement c. rise d. fall

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PROBLEM 3.82 A 1.5-m-long tubular steel shaft (G ? 77.2 GPa) of 38-mm outer diameter d1 and 30-mm inner diameter d2 is to transmit 100 kW between a turbine and a generator. Knowing that the allowable shearing stress is 60 MPa and that the angle of twist must not exceed 3°, determine the minimum frequency at which the shaft can rotate.

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What causes residual flux?

What will be an ideal response?

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Which of the following is not a function of bones?

a. form red blood cells c. store needed minerals b. aid in locomotion d. replace muscles and ligaments

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