Me with my !
2. a metal bar is 100cm long. it is heated for an hour. what could be the new le...
Chemistry, 26.08.2019 22:30 shadowangel84
Me with my !
2. a metal bar is 100cm long. it is heated for an hour. what could be the new length of the bar? a)102cm b)99cm c)98cm d)99.2cm
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a)to allow for contraction
b)cheaper
c)to allow for expansion
d)it makes it easier to repair one section of the road
Answers: 1
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