How a metal rim is fixed on a wood wheel

very very short

The metal rim is made slightly smaller than the wooden wheel. On heating, the rim expands and fits onto the wheel. Cold water is then poured over the rim, which contracts and fits tightly onto the wheel.

hope this helps you :)

for fixing the metal rim on a wooden wheel of a cart .

Explanation:

The metal rim is made slightly smaller than the wooden wheel . On heating , the rim expands and fits on to the wheel ..

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.