A line blank has endpoints
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The coefficient of thermal expansion of the metal will be 1.4 x 10⁻⁵ °c.
<h3>What is thermal expansion?</h3>Every material has its property of contraction or expansion by the change of temperature. The expansion and contraction of any material are indicated by a coefficient this coefficient is called the coefficient of thermal expansion.
Here we have the following data:-
l₁= 1.000 m
l₂ = 1.001 m
Δ = 70° C
The formula for calculating the coefficient of linear expansion will be:-
By putting the values we will get the answer.
Therefore the coefficient of thermal expansion of the metal will be 1.4 x 10⁻⁵ °c.
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The slopes of both lines are equal so they're parallel.