This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The thermal conductivity of aluminum is twice that of brass. Two rods (one aluminum and the other ... (Read 74 times)

abc

  • Hero Member
  • *****
  • Posts: 543
on: Jul 27, 2018
The thermal conductivity of aluminum is twice that of brass. Two rods (one aluminum and the other brass) are joined together end to end in excellent thermal contact. The rods are of equal lengths and radii.
 
  The free end of the brass rod is maintained at 0C and the aluminum's free end is heated to 200C. If no heat escapes from the sides of the rods, what is the temperature at the interface between the two metals? A) 76C
  B) 133C
  C) 155C
  D) 148C
  E) 92C

Question 2

A charge of 2.0 C flows onto the plates of a capacitor when it is connected to a 12. V battery. How much work was done in charging this capacitor?
 
  A) 24. J
  B) 12. J
  C) 48. J
  D) 0.14 mJ
  E) 21. J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Beatricemm

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


abc

  • Hero Member
  • *****
  • Posts: 543
Reply #2 on: Jul 27, 2018
TY


Beatricemm

  • Sr. Member
  • ****
  • Posts: 323
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

An adaptation protecting against aluminum toxicity. An adaptation protecting against aluminum toxicity.
Categories of Mammalian Thermal Receptors Categories of Mammalian Thermal Receptors
Thin disk specimens of aluminum oxide Thin disk specimens of aluminum oxide
The distribution of cones and rods over the human retina. The figure illustrates the number of cones ... The distribution of cones and rods over the human retina. The figure illustrates the number of cones ...
Paleocene-Eocene Thermal Maximum Paleocene-Eocene Thermal Maximum
The Zones of Injury Commonly Caused by a Thermal Burn The Zones of Injury Commonly Caused by a Thermal Burn
Video: Eczema

For a complete list of videos, visit our video library