The Concorde\'s exterior is made of aluminum, which has acoefficient of linear e

Question

The Concorde's exterior is made of aluminum, which has acoefficient of linear expansion of 24 x 10 ^-6 K ^-1. At 15degrees celsius, the Concorde measures 62.1 m in length. Whenthe plane is in flight, friction with the air increases thetemperature of the exterior skin to 200 degrees celsius. Whatis the change in the length of the outer skin of theConcorde? A) 32 cm B) 20 cm C) 24 cm D) 28 cm E) 36 cm Why? The Concorde's exterior is made of aluminum, which has acoefficient of linear expansion of 24 x 10 ^-6 K ^-1. At 15degrees celsius, the Concorde measures 62.1 m in length. Whenthe plane is in flight, friction with the air increases thetemperature of the exterior skin to 200 degrees celsius. Whatis the change in the length of the outer skin of theConcorde? A) 32 cm B) 20 cm C) 24 cm D) 28 cm E) 36 cm Why?

Explanation / Answer

L = LT       =(62.1m)(24*10-6K-1)(200oC-15oC)       = 0.275724m       ˜ 28cm

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