A metal block of mass m is suspended from a rigid support through a metal wire of diameter 14 mm.The tensile stress developed in the wire under equilibrium state is `7 xx 10^5` `Nm^-2`.The value of mass m is _____ kg.(Take,g=9.8 `ms^-2 `and `pi`=22/7)

A load of 4.0 kg is suspended from a ceiling through a steel wire of radius 2.0 mm. find the tensile stress developed in the wire when equilibrium is achieved. Take g=3.1pi m/s^-2

A metal wire of length L is suspended vertically from a rigid support. When a bob of mass M is attached to the lower end of wire, the elongation of the wire is l:

A load of 4 kg is suspended from a ceiling through a steel wire of length 20 m and radius 2 mm . It is found that the length of the wire increases by 0.031 mm , as equilibrium is achieved. If g = 3.1xxpi ms(-2) , the value of young's modulus of the material of the wire (in Nm^(-2)) is

Two blocks of masses 2.9 kg and 1.9 kg are suspended from a rigid support S by two inextensible wires each of length 1 m. The upper wire has negligible mass and the lower wire has a uniform mass of 0.2 kg/m. Thewhole system of block, wire and support have an upward acceleration of 0.2 m/s2. g = 9.8 m/s2. The tension at the mid-point of lower wire is-

Two blocks of masses 3 kg and 5 kg are connected by a metal wire going over a smooth pulley. The breaking stress of the metal is 24/pi xx 10^2 Nm^( - 2) . What is the minimum radius of the wire ? (take g=10ms^(-2) )

The speed of transverse waves produced in a copper wire is 40 m/s. Calculate the tension developed in the wire if diameter of wire is 1.8 mm and density of wire is 8.9 xx 10^(3) kg m^(-3) .

Two blocks of mass 2.9 kg and 1.9 kg are suspended from a rigid support S by two inextensible wires each of length 1 meter, see fig. The upper wire has negligible mass and the lower wire has a uniform mass of 0.2kg//m . The whole system of blocks wires and support have an upward acceleration of 0.2m//s^2 . Acceleration due to gravity is 9.8m//s^2 . (i) Find the tension at the mid-point of the lower wire. (ii) Find the tension at the mid-point of the upper wire.

A load of 4.0 kg is suspended from a celling through a streel wire of length 2.0 m and radius 2.0 mm. It is found that the length of the wire increases by 0.031 mm as equilibrium is achieved. Taking g = 3.1 pi ms^(-2) the Young's modulus of steel is