Consider a steel rod of diameter 1.4 cm and length 1.0 m. If the temperature of this rod is increased by 22
You will need two equations for this question:
1. Young's Modulus
2. Thermal Expansion
Thermal Expansion for Steel / Fe:
- 11.8e-6
You need to calculate the ?L first:
- ?L = L * a * ?T
- ?L = 1 * 11.8e-6 x 22
- ?L = 2.596e-4 m
Then plugin to Young's Modulus:
- F/A = Y * (?L / L)
- F = A * Y * (?L / L)
*where A = pi * r^2 = 3.14*[1.4/(2*100)]2 =1.5386e-4
m2
-F = 1.5386*10-4 * 2.0
1011*(-2.596*10-4/1) N
or F = 7.988*103 N
Change in lenght for a increase of temperature by 220C,
Young's modulus,
...Which
is the required force
Consider a steel rod of diameter 1.4 cm and length 1.0 m. If the temperature of...
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