Problem 8.25 A force stretches a wire by 1.4 m m . Part A A second wire of the s

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Problem 8.25 A force stretches a wire by 1.4mm . Part A A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force? Express your answer using two significant figures. ?L1 =   mm   SubmitMy AnswersGive Up Part B A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force? Express your answer using two significant figures. ?L2 =   mm   SubmitMy AnswersGive Up Problem 8.25 A force stretches a wire by 1.4mm . Part A A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force? Express your answer using two significant figures. ?L1 =   mm   SubmitMy AnswersGive Up Part B A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force? Express your answer using two significant figures. ?L2 =   mm   SubmitMy AnswersGive Up A force stretches a wire by 1.4mm . Part A A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force? Express your answer using two significant figures. ?L1 =   mm   SubmitMy AnswersGive Up Part B A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force? Express your answer using two significant figures. ?L2 =   mm   SubmitMy AnswersGive Up A force stretches a wire by 1.4mm . Part A A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force? Express your answer using two significant figures. ?L1 =   mm   SubmitMy AnswersGive Up Part B A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force? Express your answer using two significant figures. ?L2 =   mm   SubmitMy AnswersGive Up Part A A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force? Express your answer using two significant figures. ?L1 =   mm   SubmitMy AnswersGive Up Part A A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force? Express your answer using two significant figures. ?L1 =   mm   SubmitMy AnswersGive Up ?L1 =   mm   ?L1 =   mm   SubmitMy AnswersGive Up Part B A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force? Express your answer using two significant figures. ?L2 =   mm   SubmitMy AnswersGive Up Part B A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force? Express your answer using two significant figures. ?L2 =   mm   SubmitMy AnswersGive Up ?L2 =   mm   ?L2 =   mm   SubmitMy AnswersGive Up ?L1 =   mm  

Explanation / Answer

A)   youngs modulus is same

   (F/pi/4d^2)/(1.4/L) = (F/pi/4d^2)/(l/2L)

l=2.8mm

B) (F/pi/4d^2)/(1.4/L)=(F/pi/4*4d^2) /(l/L)

    l=0.35mm

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