Iron rims are heated before they are fixed on the wooden wheels. Explain the reason.

Iron rims are heated red hot before planting on car wheels. Why?

Explain the Heat Stroke

An iron nail sinks in water while an iron ship floats on water.Explain the reason.

'Seed storing godowns when opened release heat'. Explain with reasons.

Iron tyres are mounted on the wooden wheels of a tonga. Initially the diameter of the iron tyre is:

Why are iron bridges mounted on steel rollers? Explain.

Why is the diameter of an iron tyre kept slightly smaller than the wooden wheel on which this tyre is to be mounted? Explain.

An iron tyre is to be fitted onto a wooden wheel 1.0 m in diameter. The diameter of the tyre is 6 mm smaller than that of wheel the tyre should be heated so that its temperature increases by a minimum of (coefficient of volume expansion of iron is 3.6xx10^-5//^@C )

A bicycle wheel rolls without slipping on a horizonatal floor.W hich one of the following is true about the motion of points on the rim of the wheel, relative to the axis at the wheel's centre?

A wooden wheel of radius R is made of two semicircular part . The two parts are held together by a ring made of a metal strip of cross sectional area S and length L. L is slightly less than 2piR . To fit the ring on the wheel, it is heated so that its temperature rises by DeltaT and it just steps over the wheel. As it cools down to surrounding temperature, it process the semicircle parts together. If the coefficient of linear expansion of the metal is alpha , and it Young's modulus is Y, the force that one part of the wheel applies on the other part is :