The breaking stress for a wire of radius $r$ of a given material is $F \ Nm^{-2}$. The breaking stress for a wire of the same material of radius $2r$ will be:

Define longitudinal strain and shearing (tangential) stress and write their formulas. What is the magnitude of hydraulic stress?

One end of a uniform wire of length $L$ and weight $W$ is attached rigidly to a point in the roof,and a weight $W_1$ is suspended from its lower end. If $S$ is the area of cross-section of the wire,the stress in the wire at a height $3L/4$ from its lower end is

The spring balance does not read properly after its long use,because

Is it possible to double the length of a metallic wire by applying force over it?

According to $C.E.$ van der Waals,the interatomic potential varies with the average interatomic distance $(R)$ as