Mechanical Prop...

The Poisson's ratio of the material of a wire is$$0.25 .$$ If it is stretched by a force F, the longitudinal strain produced in the wire is $$5 \times 10 ^ { - 4 } .$$ What is the percentage increase in its volume?

The length of a steel wire is $$l_{1}$$ when the stretching force is $$T_{1}$$ and $$l_{2}$$ when the stretching force is $$T_{2}$$ The natural length of the wire is 

Determine the pressure required to reduce the given volume of water by 2%. Bulk modulus of water is $$2.2\times 10^{4}Nm^{-2}$$

The pressure of a fixed mass of air is $$1.01\times10^5Pa.$$ It  is compressed slowly, keeping its temperature constant. Then bulk modulus of air is,

A uniform cyclinder rod of length $$L$$, cross -sectional area $$A$$ and youngs modules $$Y$$ is acted upon by the forces shown in fig. The elongation of the rod is

Which of the following is perfectly plastic?

When a mass of 8 kg is suspended from a string, its length is $$l_1$$. If a mass 10 kg is suspended, its length is $$l_2$$. Length, when a mass of 16 kg is suspended from it, is given by

A mass of $$0.5\ kg$$ is suspended from wire, then length of wire increase by $$3\ mm$$ then find out work done.

A wire 2 m in length suspended vertically stretches by 10 mm when the mass of 10 kg is attached to the lower end. The elastic potential energy gain by the wire is?   (take g = 10 $$m/s^2$$)

What should be done if the gas cylinder at your home catches fire?