Question: By how much does a 5 0 0 m section of roadway expand when the temperature increases from 5 . 0 C at night to

By how much does a 500 m section of roadway expand when the temperature increases from 5.0C at night to 25C during the day? The coefficient of linear expansion of concrete is 1210-6K-1.
16 cm
4.0 cm
8.0 cm
12 cm

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