An alloy to be used for a spring application must have a modulus resilience of at least 0.72 * 106 J/m3 (0.72 * 106 Pa). What must be its minimum yield strength (in MPa) ? Assume that the modulus of elasticity for this alloy is 101 GPa.

It was found experimentally that a certain material does not change in volume when subjected to an elastic state of stress. Calculate Poisson's ratio for this material?

At a certain location, wind is blowing steadily at 10 m/s. Determine the mechanical energy of air per unit mass and the power generation potential of a wind turbine with 80-m-diameter blades at that location.

Indicate whether the following statements are true or false for a reversible process: (A) Q=0. (B) Work may be calculated using the equation of state. (C) The entropy change of the system is zero.

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You are an employee of Crewdson, Inc. Under the new policy, if you arrive to work late one morning, you will be required to A. leave work early that evening B. leave work at 5 P. M. that evening C. leave work late that evening D.

Work done by a system during a process can be considered as a property of the system. a) True b) False

When the compression process is non-quasi-equilibrium, the molecules before the piston face cannot escape fast enough, forming a high-pressure region in front of the piston. It takes more work to move the piston against this high-pressure region.

hypothetical A-B alloy of composition 40 wt% B-60 wt% A at some temperature is found to consist of mass fractions of 0.66 and 0.34 for the α and β phases, respectively.

10. Which of these requires a wheel alignment after replacement? A. Struts B. Shocks C. Both

What is the definition of diameter pitch?