A piece of copper having a rectangular cross -section of 15.2 mm `xx` 19.1 mm is pulled in tention with 44,500 N force, producing only elastic deformation. Calculate the resulting strain ? Shear modulus of elasticity of copper is 42*10^9Nm^-2

A structurual steel rod has a radius of 10 mm and a length of 1.0 m. A 100 kN force stretches it along its length. Calculate (a) stress, (b) elongation, and (c ) strain on the rod. Young's modulus. Of structural steel is 2.0xx10^(11)" N "^(-2) .

Given Young's modulus of elasticity for nickel as 207xx10^(9)Nm^(-2) and Poisson's ratio 0.36 calculate its rigidity modulus and bulk modilus of elasticity.

Calculate the percentage increase in length of a wire of diameter 0.40 mm, stretched by a load of 5 kg. (Given: Young's modulus of elasticity of material of the wire 12.5xx10^(10)Nm^(-2))

A cube of aluminium of each side 0.10 m is subjected to a tangential force of 10^(6)N . If the top surface slides through 3.0xx10^(-4) with respect to the bottom face then calculate (i) Shearing strain (ii) shearing stress (iii) modulus of rigidity (iv) elastic potential energy.

An injection syringe has a needle with an area of cross-section 1.96 xx 10^(-7)m^(2) . The piston end of the syringe has an area of 3.14 xx 10^(-4) m^(2) . If a force of 0.098N is applied then calculate the force on the blood vessel. What fraction of the total force applied is executed on the vessel.?

A copper wire of 10 ^(-6) m ^(2) area of cross section, carries a current of 2A. If the number of electrons per cubic meter is 8 xx 10 ^(28), calculate the current density and average drift velocity. Given, e 1. 6 xx 10 ^(-19) C)

A uniform metal rod of 2 mm^2 cross-section is is heated from 0C to 20^circ C . The coefficient of linear expansion of the rod 1 2 xx 10^(-6)circC^( -1). Its Youngs modulus of elasticity is 10^(11) Nm^(-2). Energy stored per unit volume of the rod is

A steel pillar of length 1 m has to support a building of 5000 kgwt. If the maximum permissible change in the length of the pillar is 2 mm, then what should be the minimum area of cross -section of the pillar. Given Young's Modulus of steel =2.2xx10^(11)Nm^(2)