a iron rod's and a zink rod's lenth are cequencely 25.55cm and 25.5 cm in 0°c. in which temperature the lenth of the two rod are equal. the coefficient linear expansion of iron is 10×10^-6/°c and the coefficient linear expansion of zink rod is 30×10^-6/°c
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No i dont know that one
Suman937447:
ok but please try it for me
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