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`.

If two cubes, each of side 6 cm are joined face to face, then find the volume of the resulting cuboid?

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 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

An element having a density 11.2"g cm"^(-3) forms a fcc lattice with edge of 4xx10^(-3) cm. Calculate the atomic mass of the element.

The tensile strength of steel is 5 xx 10^7 N m^-2 . Find the maximum length of the wire that can hang vertically , without breking it. Densityof steel is 8 xx 10^3 kg m^-3.

A 50 kg girl whose leg bones are 5m^2 in area and 50 cm long falls from a height of 2 m without breaking her leg bones.If the bones can stand a stress of 10^8 Nm^(-2) ,calculate the Young's modulus for the material of bones.

A one metre long wire having area of cross-section 1 mm^2 is stretched by a mass of 3 kg. Calculate the increase in length. Take Y = 2 xx 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)

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?