A brass rod is 69.5 cm long and an aluminum rod is 49.3 cm long when...
A brass rod is 69.5 cm long and an aluminum rod is 49.3 cm long when both rods are at an initial
temperature of 0
Homework Answers
L = L0_1*(1+a_1*delT) + L0_2*(1+a_2*delT) = 120
L0_1 = 69.5 cm
L0_2 = 49.3 cm
a_1 = 2e-5
a_2= 2.4e-5
(L - L0_1 - L0_2) = L0_1*a_1*delT + L0_2*a_2*delT
delT = (L-L0_1-L0_2)/(L0_1*a_1 + L0_2*a_2)
delT = (120 - 69.5 - 49.3)
/(69.5*2e-5+49.3*2.4e-5)
delT = 446.3454. C ~ 446C
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