Asked by Urgent Help
an iron of diameter 4 cm at 25 degree and a cylinder of diameter 4.002 cm is made of the same material at the same temperature. to what temperature the ring should be heated so that the cylinder passes through the ring easily.?
a) 41.6 degree Celsius
b) 66.6 degree Celsius
c) 32.6 degree Celsius
d)76.6 degree Celsius
please show working and thank you
a) 41.6 degree Celsius
b) 66.6 degree Celsius
c) 32.6 degree Celsius
d)76.6 degree Celsius
please show working and thank you
Answers
Answered by
Elena
(b)
Linear coefficient of thermal expansion
α=ΔL/L•Δt
Δt = 0.002/4•12•10^-6=41.66º
t=25+41.66=66.6ºC
Linear coefficient of thermal expansion
α=ΔL/L•Δt
Δt = 0.002/4•12•10^-6=41.66º
t=25+41.66=66.6ºC
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