Problem 8.29 A 4000 N force stretches a wire by 4.0 m m . A second wire of the s

Question

Problem 8.29 A 4000N force stretches a wire by 4.0mm . A second wire of the same material is twice as long and has twice the diameter. How much force is needed to stretch it by 1.0 mm? Express your answer using two significant figures. F =   N   SubmitMy AnswersGive Up
A third wire of the same material is twice as long as the first and has the same diameter. How far is it stretched by a 4000 N force? Express your answer using two significant figures. ?x =   mm   Problem 8.29 A 4000N force stretches a wire by 4.0mm . A second wire of the same material is twice as long and has twice the diameter. How much force is needed to stretch it by 1.0 mm? Express your answer using two significant figures. F =   N   SubmitMy AnswersGive Up
A third wire of the same material is twice as long as the first and has the same diameter. How far is it stretched by a 4000 N force? Express your answer using two significant figures. ?x =   mm   A 4000N force stretches a wire by 4.0mm . A second wire of the same material is twice as long and has twice the diameter. How much force is needed to stretch it by 1.0 mm? Express your answer using two significant figures. F =   N   SubmitMy AnswersGive Up
A third wire of the same material is twice as long as the first and has the same diameter. How far is it stretched by a 4000 N force? Express your answer using two significant figures. ?x =   mm   A 4000N force stretches a wire by 4.0mm . A second wire of the same material is twice as long and has twice the diameter. How much force is needed to stretch it by 1.0 mm? Express your answer using two significant figures. F =   N   SubmitMy AnswersGive Up
A third wire of the same material is twice as long as the first and has the same diameter. How far is it stretched by a 4000 N force? Express your answer using two significant figures. ?x =   mm   A second wire of the same material is twice as long and has twice the diameter. How much force is needed to stretch it by 1.0 mm? Express your answer using two significant figures. F =   N   SubmitMy AnswersGive Up F =   N   F =   N   SubmitMy AnswersGive Up
A third wire of the same material is twice as long as the first and has the same diameter. How far is it stretched by a 4000 N force? Express your answer using two significant figures. ?x =   mm   A third wire of the same material is twice as long as the first and has the same diameter. How far is it stretched by a 4000 N force? Express your answer using two significant figures. ?x =   mm   ?x =   mm   ?x =   mm   F =   N  

Explanation / Answer

since the material is ame .hence the youngs modulus is same

(4000/pi/4d^2) / (4/L) =(F/pi/4*4d^2)/(1/2L)

F=2000N

2) (4000/pi/4d^2) / (4/L) =(4000/pi/4d^2)/(l/2L)

l=8mm

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