A square plate has an area of 29.00 cm2 at 20.0°C. It will be used in a low temperature experiment at T = 10.0K where it must have an area of 28.00 cm2. What area must be removed form the plate at 20.0°C for it to have the correct area at 10.0 K? (The coefficient of linear expansion is 10 × 10−6 (°C)−1.)
◦ 0.079 3 cm2
◦ 0.159 cm2
◦ 0.238 cm2
◦ 0.841 cm2
◦ 0.921 cm2