If a compressive force of `3.0xx10^(4)N` is exerted on the end of a 20 cm long bone of cross-sectional area `3.6cm^(2)` (i) will the bone break and (ii) if not by how much length does it shorten? Given compresive strength of bone `=7.7xx10^(8)N//m^(2)` and young's modulus of bone `=1.5xx10^(10)N//m^(2)`

Calculate the Poisson's ratio for silver. Given its Young's modulus = 7.25 xx 10^10 N m^-2 and bulk modulus = 11 xx 10^10 N m^-2

For silver Young's modulus is 7.5 xx 10^(10) N//m^(2) and Bulk modulus is 11 xx 10^(10) N//m^(2) . Its poisson's ratio will be

A rubber cord of cross-sectional area 2 cm^(2) has a length of 1 m. When a tensile force of 10 N is applied, the length of the cord increases by 1 cm. What is the Young's modulus of rubber ?

A force of 200 N is applied at one end of a wire of length 2m and having area of cross-section 10^(-2) cm^(2) . The other end of the wire is rigidly fixed. If coefficient of linear expansion of the wire alpha=8xx10^(-6)//.^(@)C and Young's modulus Y=2.2xx10^(11)N//m^(2) and its temperature is increased by 5^(@)C , then the increase in the tension of the wire will be

A 45 kg boy whose leg bones are 5 cm^(2) in area and 50 cm long falls through a height of 2m without breaking his leg bones. If the bones can stand a stress of 0.9 xx 10^(8) Nm^(-2) , then young's modulus for the material of the bone 18

If young's modulus of steel is 2xx10^(11)N//m^(2) , then the force required to increase the length of a wire of cross section 1 cm^(2) by 1% will be

A body of mass 1 kg is fastened to one end of a steel wire of cross- section area 3 xx 10^(-6)m^(2) and is rotated in horizantal circle of radius 20 cm with a constant speed 2 m//s . Find the elongation of the wire (Y= 2 xx 10^(11) N//m^(2))

Calculate the speed of longitudinal wave in steel. Young's modulus for steel is 3xx10^(10)N//m^(2) and its density 1.2xx10^(3)kg//m^(3)

A copper rod of length 20cm and cross-sectional area 2mm^(2) is joined with a similar aluminium rod as shown in figure .Find the resistance of the combination between the ends, Resistivity of copper =1.7xx10^(-8)(Omega)m and that of aluminium =2.6xx10^(-8)(Omega)m .

How much force is required to produce an increase of 0.2 % in the length of a brass wire of diameter 0.6 mm (Young's modulus for brass =0.9 xx 10^(11) N//m^(2) )