A piece of brass 0.12 m² in cross sectional area is cooled by 30 $\circ$ C and is stretched by a force.If the fractional change in length is 1.12 * 10^-3,what is the magnitude of the force? ($\alpha$_Brass = 19 * 10^-6 C^-1,Y_Brass = 9.0 * 10¹⁰ N/m²) A)18 * 10⁶ N B)52 * 10⁵ N C)74 * 10⁵ N D)78 * 10⁶ N E)95 * 10⁵ N

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The Answer of A piece of brass 0.12 m² in cross sectional area is cooled by 30 $\circ$ C and is stretched by a force.If the fractional change in length is 1.12 * 10^-3,what is the magnitude of the force? ($\alpha$_Brass = 19 * 10^-6 C^-1,Y_Brass = 9.0 * 10¹⁰ N/m²) A)18 * 10⁶ N B)52 * 10⁵ N C)74 * 10⁵ N D)78 * 10⁶ N E)95 * 10⁵ N

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

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