At room temperature (20.° C) the area of a hole in a sheet of material is 5.505 cm². When heated to 830.° C the area increases by 29.0 mm².
(a) What is the thermal coefficient of linear expansion for the material?
(b) If the temperature had decreased to -76.° Fahrenheit, what would be the area of the hole?

Question

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The Answer of At room temperature (20.° C) the area of a hole in a sheet of material is 5.505 cm². When heated to 830.° C the area increases by 29.0 mm². (a) What is the thermal coefficient of linear expansion for the material? (b) If the temperature had decreased to -76.° Fahrenheit, what would be the area of the hole?

At Room Temperature (20