The force required to punch a square hole 2cm side in steel sheet 2mm thick is: (shearing stress of steel sheet =`3.5×10^8N/m^2`)

There is same change in length when a 33000 N tensile force is applied on a steel rod of area of cross-section 10^(-3)m^(2) . The change of temperature reuired to produce the same elongation, if the steel rod is heated , if (The modulus of elasticitay is 3xx10^(11) N//m^(2) and the coefficient of linear expansion of steel is 1.1 xx 10^(-5) //^(@)C ).

Find the greatest length of steel wire that can hang vertically without breaking. Breaking stress of steel =8.0xx10^(8) N//m^(2) . Density of steel =8.0xx10^(3) kg//m^(3) . Take g =10 m//s^(2) .

Calculate the force required to separate the glass plates of area 10^(-2)m^(2) with a film of water 0.05 mm thickness between them (surface tension of water =70xx10^(-3)N//m) )

A lead cube of side 20 cm is subjected under a shearing force of magnitude 5.6 x 10^6 N . If the lower face of the cube is fixed, then the displacement in the upper face is (If shear modulus of lead is 5.6 * 10^6 N/m^2)

Determine the force required to double the length of the steel wire of area of cross-section 5 xx 10^(-5) m^(2) . Give Y for steel = 2 xx 10^(11) Nm^(-2) .

A square lead slab of side 50 cm and thickness 10 cm is subjected to a shearing force (on its narrow face) of 9xx10^4N . The lower edge is riveted to the floor. How much will the upper edge be displaced? (Shear modulus of lead =5.6xx10^9Nm^-2 )

A square lead slab of side 50 cm and thickness 10 cm is subjected to a shearing force (on its narrow face) of 9xx10^4N . The lower edge is riveted to the floor. How much will the upper edge be displaced? (Shear modulus of lead =5.6xx10^9Nm^-2 )

A force of 5 kgf is required to cut a metal sheet. A pair of shears used for cutting the metal sheet has its blades 5 cm long, while its handles are 10 cm long. What effort is needed to cut the sheet ?

What force is required to stretch a steel wire to double its length when its area of cross section 1 cm2 and Young.s modulus 2 xx 10^(11)N//m^(2) .

One of the square faces of a metal slab of side 50 cm and thickness 20 cm is rigidly fixed on a horizontal surface. If a tangential force of 30 N is applied to the top face and it is known that the shear modulus of the material is 4 xx 10^(10) N//m^(2) , then the displacement (in m) of the top face is