A 250 x 150 mm rectangular beam is subjected to maximum bending moment of 750 kNm. Determine: (i) (ii) The maximum bending stress in the beam I If the value of E for the beam material is 200 GN/in?, find out the radius of curvature for that portion of the beam where the bending is inaximum. (iii) The value of the longitudinal stress at a distance of 65 mm from the top surface of the beam.​

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false