A truck is pulling a car out of a ditch by means of a steel cable that is 9.1 m long and has a radius of 5 mm. When the car just begins to move, the tension in the cable is 800 N. How much has the cble streched ? (Young's modulus for steel is ` 2xx 10^11 N m^-2)`.

A steel wire of mass mu per unit length with a circular cross section has a radius of 0.1 cm. The wire is of length 10 m when measured lying horizontal, and hangs from a hook on the wall. A mass of 25 kg is hung from the free end of the wire. Assuming the wire to be uniform and lateral strains < < longitudinal strains, find the extension in the length of the wire. The density of steel is 7860 kg m^-3 (Young's modulues Y = 2 xx 10^11 N m^-2)

Two identical steel cubes (masses 50 g, side 1 cm) collide head-on face to face with a speed of 10 cm/s each. Find the maximum compression of each. Young's modulus for steel, Y = 2 xx 10^11 N//m^2 .

A steel wirre 0.72 m long has a mass of 5.0xx 10^(-3) kg. If the wire is under a tension of 60 N, What is the speed of transverse waves on the wire?

A steel cable with a radius of 1.5 cm supports a chairlift at a ski area. If the maximum stress is not to exceed 10^8 N m ^-2 , what is the maximum load the cable can support ?

A stell wire of length 4 m ,is stretched through 2 mm ,.The corss - sectional area of the wire is 2.0 mm^2 .If young's modulus of steel si 2.0 xx 10 ^11 N//^2 find the energy density of the wire

A steel wire has a length of 12 m and a mass of 2.10 kg. What will be the speed of a transverse wave on this wire when a tension of 2.06xx10^(4) N is applied?

A parallel plate capacitor having area 25 cm^2 and separation 1.00 mm is Connected to a battery of 6.0 V. Calculate the charge flown through the battery. How much work has been done by the battery during this process? (Given varepsilon_0=8.85xx10^-12C^2N^-1m^-2)