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25 March, 12:20

Steel expands and contracts as the surrounding temperature changes. The approximate temperature T (in

degrees Celsius) that results in a 300 cm beam contracting to 299.8 cm can be found by the equation

-0.2

-20

= (7.2*10-6) (300).

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Answers (1)
  1. 25 March, 13:14
    0
    The answer to the question is - 20
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