Asked by Fatimah

A brass measuring tape is correct at 20°c.The value obtained when the length of a field is measured with the rule at 50°c appears to be 70.5m. what is the length of the field? Linear expansivity of brass=1.8×10^_5/Kelvin
Answered by Anonymous
change in L / L = 1.8*10^-5 (50 - 20)
Lmeasured - L = 70.5 (30)(1.8*10^-5) = 3807*10^-5 = 0.038
L = 70.5 - .038 =70.46
Answered by Oreofeoluwa

A brass measuring tape is correct at 20°c.The value obtained when the length of a field is measured with the rule at 50°c appears to be 70.5m. what is the length of the field? Linear expansivity of brass=1.8×10^-5/Kelvin
Answered by Oreofeoluwa
A solid metal cube of side 10cm is heated from 10 degree Celsius to 60 degree Celsius. if the linear expansivity of the metal is 1.2 × 10^-5 k^-1
Answered by Oreofeoluwa
A solid metal cube of side 10cm is heated from 10 degree Celsius to 60 degree Celsius. if the linear expansivity of the metal is 1.2 × 10^-5 k^-1, calculate the increase in this volume

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