This topic contains a solution. Click here to go to the answer

Author Question: A heat conducting rod, 1.40 m long, is made of an aluminum section that is 0.50 m long and a copper ... (Read 205 times)

Anajune7

  • Hero Member
  • *****
  • Posts: 574
A heat conducting rod, 1.40 m long, is made of an aluminum section that is 0.50 m long and a copper section that is 0.90 m long. Both sections have cross-sectional areas of of 0.00040 m2.
 
  The aluminum end and the copper end are maintained at temperatures of 40C and 280C, respectively. The thermal conductivity of aluminum is 205 W/mK of copper is 385 W/mK. The rate at which heat is conducted in the rod is closest to A) 20 W.
  B) 18 W.
  C) 23 W.
  D) 25 W.
  E) 28 W.

Question 2

A heat conducting rod, 0.90 m long, is made of an aluminum section that is 0.10 m long, and a copper section that is 0.80 m long. Both sections have cross-sectional areas of 0.00040 m2.
 
  The aluminum end is maintained at a temperature of 40C and the copper end is at 150. The thermal conductivity of aluminum is 205 W/mK and of copper is 385 W/mK. Steady state has been reached, and no heat is lost through the well-insulated sides of the rod. The temperature of the aluminum-copper junction in the rod is closest to A) 61C.
  B) 58C.
  C) 56C.
  D) 54C.
  E) 52C.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sierrahalpin

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

A

Answer to Question 2

A




Anajune7

  • Member
  • Posts: 574
Reply 2 on: Jul 29, 2018
Excellent


flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

For a complete list of videos, visit our video library