One of the greatest problems facing our modern society is the difficulty of powering all our technology. Which of the following forms of energy are being used in modern society as sustainable power sources? wind, water, and solar energy
water, coal, and solar energy
wind, coal, and water
steam, coal, and solar energy

On a average work day more than work place firs are reorted

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.