The radius of a copper rod is 4 mm . What force is required to stretch the rod by 10 percent of its length ? Y for copper = `12 xx 10^10 N/m^2` .

The radius of a cupper wie is 4 mm . What force is required to stretch the wire by 20% of its length, assuming that the elastic limit is not exceeded ? (Y = 1.2 xx 10^11 N/m^2)

What force is required to stretch a steel wire of cross- section 1sq cm to double its length (Y = 2 x 10^11 Nm^-2)

The diameter of steel rod is 8 xx 10^(-3) m. What force will stretch it by 0.3% of its length (Y = 20 X 10^11 N/m^2)

Bulk modulus of water is 2 xx 10^9 N/m^2 . What pressure is required to reduce a given volume of water by 1 percent ?

A copper wire 2 m long and having a diameter of 2mm is suspended from a rigid support . The wire is stretched by a load of 5 kg . Find the work done in stretching the wire and the strain energy per unit of its volume. Y = 12 xx 10^10 N/m^2 and g= 9.8 m/s^2 .

A copper wire is stretched by one percent of its length. What is the energy stored per unit volume of the wire if Y for its material is 11 xx 10^10 N/m^2 .