A square hole 9 cm along each side is cut in asheet of copper. Calculate the change in the area of this holeif the temperature of the sheet is increased by 56 K.Answer in units of cm2.
The temperature coefficient of expansion of aluminum: α 23.8x10^-6 1/K A Ao(1 + αΔT) 81[1 + (23.8x10^-6)56] 81 + 0.001 81.001 cm? ΔA 0.001 cm?
