A gap must be left between steel rails to allow for thermal expansion. How large a gap is needed if the maximum temperature reached is 50° above the temperature at which the rails were laid. The length of the rail is 10m and the α


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Question Number 141111 by jlewis last updated on 15/May/21

$A gap must be left between steel$ $rails to allow for thermal expansion .$ $How large a gap is needed if the$ $maximum temperature reached$ $is 50 ° above the temperature at$ $which the rails were laid . The$ $length of the rail is 10 m and$ $the α_{steal} = 12 \times 10^{- 6} / ° c$
Commented by mr W last updated on 15/May/21

$i n m o d e r n r a i l w a y t h e r e i s n o g a p$ $i n t h e r a i l s . t h e r a i l s a r e p r a c t i c a l l y$ $i n f i n i t e l y l o n g .$
	Answered by TheSupreme last updated on 15/May/21

	$10 \times 12 \times 50 \times 10^{- 6} = 0.006 m = 6 m m$
	Commented by jlewis last updated on 15/May/21

	$w a h!! j u s t a s s i m p l e a s t h i s ? ? a n y w a y t h a n k s$
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