Answer to Question #80559 in Physics for Glory

Question

You are looking to purchase a small piece of land in Hotoro GRA, Kano. The price is “only”
N100, 000 per square meter! The land title says the dimensions are 50m x 50m. By how much would
the total price change if you measured the land with a steel tape measure on a day when the
temperature rise was 80ºC? For this type of steel,

Answer 1

ΔA=2αΔTA
ΔA=2(0.000012)(80)(50)(50)=4.8 m^2.
Thus,
ΔP=N100,000 (4.8)=N480,000.