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

Author Question: What is the R value of a material with a thermal conductivity of 2.0 and is 4 inches thick? What ... (Read 133 times)

mp14

  • Hero Member
  • *****
  • Posts: 534
on: Jul 26, 2018
What is the R value of a material with a thermal conductivity of 2.0 and is 4 inches thick?
 
  What will be an ideal response?

Question 2

How does an electronic leak detector work?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

DHRUVSHAH

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 26, 2018
Answer to Question 1

Divide the k value by the thickness 2 / 6 = 0.2 conductivity
Find the reciprocal 1 / 0.2 = 5
R Value = 5

Answer to Question 2

A small pump draws air over a platinum diode located at the end of the test wand.


mp14

  • Member
  • Posts: 534
Reply 2 on: Jul 26, 2018
Wow, this really help

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Desert shrubs create distinctive thermal microclimates in the desert landscape Desert shrubs create distinctive thermal microclimates in the desert landscape
Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material
A gauge reading with the needle fluctuating 3 to 9 inches Hg below normal often indicates a vacuum ... A gauge reading with the needle fluctuating 3 to 9 inches Hg below normal often indicates a vacuum ...
Thermal Layers of the Atmosphere Thermal Layers of the Atmosphere
The effect of thermal expansion The effect of thermal expansion
An educational institution has total direct labor and material costs of $1964 per student. Its ... An educational institution has total direct labor and material costs of $1964 per student. Its ...
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library