(a) A wire that is 1.50 m long at 20.0°C is found to increase in length by 1.90 cm when warmed to 420.0°C. Compute its average coefficient of linear expansion for this temperature range. (b)The wire is stretched just taut (zero tension) at 420.0°C. Find the stress in the wire if it is cooled to 20.0°C without being allowed to contract. Young’s modulus for the wire is 2.0 x 10 11 Pa.
(a) A wire that is 1.50 m long at 20.0°C is found to increase in length by 1.90 cm when warmed to 420.0°C. Compute its average coefficient of linear expansion for this temperature range. (b)The wire is stretched just taut (zero tension) at 420.0°C. Find the stress in the wire if it is cooled to 20.0°C without being allowed to contract. Young’s modulus for the wire is 2.0 x 10 11 Pa.
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Chapter1: Units, Trigonometry. And Vectors
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(a) A wire that is 1.50 m long at 20.0°C is found to increase in length by 1.90 cm when warmed to 420.0°C. Compute its average coefficient of linear expansion for this temperature range.
(b)The wire is stretched just taut (zero tension) at 420.0°C. Find the stress in the wire if it is cooled
to 20.0°C without being allowed to contract. Young’s modulus for the wire is 2.0 x 10 11 Pa.
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