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A Piece of Brass 0 $\circ$ C and Is Stretched by a Force of 74

Question 27

Multiple Choice

A piece of brass 0.12 m² in cross sectional area is cooled by 20^$\circ$C and is stretched by a force of 74 * 10⁵ N.What is the fractional change in length? ( $\alpha$ _Brass = 19 * 10^-6 C^-1,Y_Brass = 9.0 * 10¹⁰ N/m²)

A) 2.42 * 10^-2
B) 1.12 * 10^-3
C) 5.11 * 10^-4
D) 0.534
E) 3.05 * 10^-4

A Piece of Brass 0 ∘\circ∘ C and Is Stretched by a Force of 74

Multiple Choice

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A Piece of Brass 0 $\circ$ C and Is Stretched by a Force of 74

Correct Answer:
Verified
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