In relation to bending stress, what is the correct value of bending or flexural modulus (Eb), if P is the normal force, L is the beam length, w is the beam width, t is the beam thickness, and y is the deflection at load point?

Which option can be exchanged in a closed system?

Express the change in internal energy of the system when no work is done on the system but a certain amount of heat, say q, is taken out from the system and given to the surroundings.

Consider the two timber posts that measure 150 millimeters square and 4 meters high. These posts are subjected to an axial load of 108 kN each. How much will they be shorten because of the load, if one post is made of pine timber (E = 7800 MPa)and the other of Australian blackwood (E = 15300 MPa)?

Which option is the correct characteristics of the oil-tempered wire?

What is the significance of the above given symbol in work study technique?

The force in member U2L2 of the truss shown in below figure, is

The coefficient of friction depends upon

The intensity of direct longitudinal stress in the cross-section at any point distant r from the neutral axis, is proportional to

A closely coiled helical spring of radius R, contains n turns and is subjected to an axial loadW. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the stress developed in the helical spring is

The coefficient of friction depends on