Angular velocity = 7.3 x 10 -5 rad/s. thus, the speed of any point on the earth's surface at the equator due to earth's rotation is, V = r $\omega$ = 6.4 x 10 6 x 7.3 x 10 -5 m/s = 470 m/s. The examples based on Rotational Speed are given below : Back to Top.
Sarking is a layer of flexible insulation typically installed under roof tiles when a home is being constructed.It consists of aluminum foil laminated onto paper or plastic backing with a flame retardant adhesive and fibreglass reinforcing mesh, and is manufactured in sheet form.Sarking performs a dual function, helping to keep your home insulated from the heat of summer whilst retaining warmth in the winter.t consists of aluminum foil laminated onto paper or plastic backing with a flame retardant adhesive and fibreglass reinforcing mesh, and is manufactured in sheet form. Sarking performs a dual function, helping to keep your home insulated from the heat of summer whilst retaining warmth in the winter.
1 Shaving alum is a powdered form of alum used as an astringent to prevent bleeding from small shaving cuts. 2  The styptic pencils sold for this purpose contain aluminium sulfate or potassium aluminium sulfate.3  Similar products are also used on animals to prevent bleeding after nail-clipping.f good quality produce and modern canning methods are employed, there is no need to use alum to bolster the crispness of the pickles and cherries. In any event, even if alum is used to soak the pickles, it should not be used in the final pickling liquid.