When the temperature of a copper coin is raised by 100^@C , its diameter increase by 0.20% To two significant figures, give the percent increase in ( a) the area of a face ,( b) the thickness, (c) the volume , and ( d) the mass of the coin. ( e) Calculate the coefficient of linear expansion of the coin.

When the temperature of a copper coin is raised by 100^@C , its diamet

1.	When the temperature of a copper coin is raised by 100^@C , its diameter increase by 0.20% To two significant figures, give the percent increase in ( a) the area of a face ,( b) the thickness, (c) the volume , and ( d) the mass of the coin. ( e) Calculate the coefficient of linear expansion of the coin.
Answer» Answer :(a) 0.40% ; (b) 0.20% ; (C) 0.60% ; (d) MASS does not change ; (E) `2.0 xx10^(-5)//""^@C`

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