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 117 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

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

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?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Overview of material uptake and long-distance transport processes in plants Overview of material uptake and long-distance transport processes in plants
A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ... A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ...
Thermal Layers of the Atmosphere Thermal Layers of the Atmosphere
The inverse-square law and its effects. Doubling your distance away from a radioactive material ... The inverse-square law and its effects. Doubling your distance away from a radioactive material ...
The material safety data sheet (MSDS) for sulfuric acid showing the detailed technical information ... The material safety data sheet (MSDS) for sulfuric acid showing the detailed technical information ...
A concrete wall of a cold storage room measures 3.0 m high, 5.0 m wide, and 20 cm thick. The ... A concrete wall of a cold storage room measures 3.0 m high, 5.0 m wide, and 20 cm thick. The ...
Video: Epidural Hematoma

For a complete list of videos, visit our video library