The reading of pressure meter attached with a closed pipe is `5 xx 10^(5) Nm^(-2)`. On opening the valve of the pipe, the reading of the pressure meter is `4.5 xx 10^(5) Nm^(-2)`. Calculate the speed of the water flowing in the pipe.

In a sonometer experiment, the density of the material of the wire used is 7.5xx10^(3)kgm^(-3) . If the stress of the wire is 3.0xx10^(8)Nm^(-2) , find out the speed of the transverse wave in the wire.

A cylinder of length 1.5 m and diameter 4 cm is fixed at one end. A tangential force of 4 xx 10^(5) N is applied at the other end. If the rigidity modulus of the cylinder is 6 xx 10^(10) Nm^(-2) then, calculate the twist produce in the cylinder.

A wire 10 m long has a cross-sectional area 1.25 xx 10^(-4) m^(2) . It is subjected to a load of 5 kg. If Young's modulus of the material is 4 xx 10^(10) N m^(-2) , calculate the elongation produced in the wire. Take g = 10 ms^(-2)