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An Aluminum cable of length 2.5 m has 15,000 N tensile force acting on it, if the wire is only allowed
to be stretched by 3 mm before it breaks,
X
18. what must be the radius of the wire if the Young's modulus of Al is 6.9 x 10¹⁰ N/m² ?
d. 0.76 cm
a. 1.32 cm
b. 1.52 cm
c. 1.07 cm

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