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Figure 16-22 on the next page shows the stress-strain curve for an elastomer. From the curve, calculate and plot the modulus of elasticity versus strain and explain the results.
ocean temperature energy conversion otec power plants generate power by utilizing the naturally occurring decrease with
Finally, assume a liquid fuel energy density of 41.2 MJ/kg and calculate the energy efficiency.
Five kilogram of saturated water vapor at 300 kPa is heated at constant pressure until its temperature reaches 200oC. Calculate the work done by the steam during this process.
The static equilibrium position of a mass less rigid bar hinged at point O and connected with spring's k1 and k2 is shown. Assuming that the displacement results from the application of a force F at a point A, find the equivalent spring constant of ..
air enters an adiabatic nozzle steadily at 300 kpa 200degcand 28 ms and leaves at 100 kpa and 168 ms. the inlet area of
A 0.025 m thick flat plate having a 20 cm X 20 cm cross section is made of plain carbon steel (k=30 W/mC), alpha=32.7 x10^-7m^2/s). The initial plate temperature is 727C. it is cooled by blowing 27C air over the top surface of the plate at 30 m/s; th..
Write the difference equation for the BTBC-CS method where a backward difference is used for the convection term and a central difference is used for the diffusion term. Assess the stability of the method.
Refrigerent 134a at a flow rate of 0.5 lb/s enters a heat exchanger in a refrigeration system operating at steady state as saturated liquid at 20 degrees Fahrenheit at a pressure of 20lbf/in^2. A separate air stream passes in counter flow to the refr..
The mass of all the air in the atmosphere contained above a 1-m2 area is to be contained in a spherical volume. Estimate the diameter of the sphere if the air is at standard conditions.
steam flows steadily into a turbine with a mass flow rate of 26 kgs and a negligible velocity at 6 mpa and 600 c. the
Assume that the controller should provide a phase margin of 60° at fc, that the feedback sensor has a gain of kFB = 0.2 and the PWM chip uses a peak ramp voltage of 1.8V. Following the steps outlined in section 4.4 of the Mohan textbook, calculate..
In some other types of manipulators (i.e., direct-drive), joint motors are located at the joints themselves, the rotor being integral with one link and the stator being integral with the joining link. Discuss the advantages and disadvantages of th..
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