Embibe Experts Solutions for Exercise 2: Assignment

Bulk modulus of elasticity (within elastic limit) is defined as the ratio of

A material has Poisson's ratio $0.5.$ If a uniform rod suffers a longitudinal strain of $4\times {10}^{-2}$ then the lateral strain in the wire is

If a metal wire has its length doubled and its diameter tripled, then by what factor does its Young's modulus change?

Calculate the longest length of steel wire that can hang vertically without breaking. Breaking stress for steel $=7.982\times {10}^8 \mathrm{N} {\mathrm{m}}^{-2}$ and density for steel $d=8.1\times {10}^3 \mathrm{kg} {\mathrm{m}}^{-3}$.

A copper wire of length $2.2 \mathrm{m}$ and a steel wire of length $1.6 \mathrm{m}$, both of diameter $3.0 \mathrm{mm}$, are connected end to end. When stretched by a load, the net elongation is found to be $0.70 \mathrm{mm}$. Obtain the load applied.

A $2 \mathrm{m}$ long wire is stretched by $0.5 \mathrm{cm}$. Calculate the elastic potential energy per unit volume if the Young's modulus of the material of the wire is $Y=8\times {10}^{10} \mathrm{N} {\mathrm{m}}^{-2}$.

_____is force acting on per unit area.

If ultimate tensile strength and fracture point on stress-strain curve are close, then the material is said to be _____ .