Wire

One pull of wire is reduced its diameter by 14%. What will be diameter of wire with diameter 19 mm over 10 pulls?

Correct result:

d =  4.2 mm

Solution:

d=19(114100)10=4.2 mmd = 19\cdot \left(1- \dfrac{ 14}{100}\right)^{ 10} = 4.2 \ \text{mm}



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