A.)a copper rod had a length of 1.117m when its temperature is 22.0 C. If the te

Question

A.)a copper rod had a length of 1.117m when its temperature is 22.0 C. If the temperature of the rod is raised to 275.0 C, what is the length of the rod? [The value of for copper is 16.8 * 10-6(C)-1.] show your work.

B.) Iron rails are used to build a railroad track. If each rail is 10.000m long when it is placed in the track at a temperature of 20.0 C, how much space must be left between the rails so that they just touch each other when the temperature is 40.0 C. [The value of for iron is 11.4 * 10(C)-1]. show your work.

C.) A rod in a stream jacket is measured to have a length of 0.600m at a temperature of 22.0 C. Stream then passed through the jacket for several minutes until the rod is at a temperature of 98.0 C. The incresase in the length of the rod is measured by a mocrometer screw arrangement to be 1.19mm. What is the linear thermal coefficient of expansion for the rod? Show your work.

Explanation / Answer

From the definition of linear expansion,
 l2 =  l1[1+()T]
     = 1.117[1+ (16.8*10^6)*253]
     = 1.1217 m
  the length of the rod is 1.1217 m.

 * plz post each question separattly.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.