Asked by Amelia
Calculate the change of volume that occure when a steel bearing with an initial volume of 1.8cm^3 is heated from 20°C to 80°C.
Tried to use the formula DeltaV/Vinitial=Beta×DeltaT but kept getting the wrong answer though my maths could be off?
Tried to use the formula DeltaV/Vinitial=Beta×DeltaT but kept getting the wrong answer though my maths could be off?
Answers
Answered by
Steve
so, show us your numbers, and maybe we can tell what went wrong.
Answered by
Amelia
I got DeltaV=(1/12×10^-6k)(80-20)(1.8cm^3)
=1.296×10^-3cm^-3
The answer Im supposed to be getting is 3.9×10^-3cm^-3?
=1.296×10^-3cm^-3
The answer Im supposed to be getting is 3.9×10^-3cm^-3?
Answered by
Damon
for steel coef of VOLUMETRIC expansion is
about 33 *10^-6 to 39*10^-6 depending on composition of the steel. You used I suspect 1.13 *10^-6 which is more like the LINEAR coef
about 33 *10^-6 to 39*10^-6 depending on composition of the steel. You used I suspect 1.13 *10^-6 which is more like the LINEAR coef
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