An aluminum wing on a passenger jet is 25 m long when its temperature is 21°c. at what temperature would the wing be 6 cm (0.06 m) shorter?

The temperature at which the wing would be shorter is

Solution:

The original length of the Aluminium wing,

Temperature, T =

Change in the wing's length,

Also, for Aluminium, at temperature between to , the linear expansion coefficient,

Now, Change in length is given by:

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explanation:

ice to water 1 water to vapour 2 latent heat