× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
e
4
h
4
h
4
m
3
d
3
B
3
o
3
w
3
H
3
a
3
c
3
k
3
Home Q & A Board Science-Related Homework Help Physics
New Topic  
hockeyguy9 hockeyguy9
wrote...
Posts: 513
Rep: 0 0
6 years ago
What is the temperature difference across a window if the conductive heat flow rate across it is 20 J/s? The window is 4.5 m2 in area that has an R-value of 2.5 m2 C/W.
 
  What will be an ideal response?
Read 56 times
1 Reply

Related Topics

Replies
wrote...
#1
6 years ago
We find the rate of heat transfer from
rate of heat transfer = A DT/R = 4.5 m2 x DT/(2.5 m2 C/W).
This allows us to find DT. We have
DT = R x (rate of heat transfer)/A = (2.5 m2 C/W) x (20 J/s)/(4.5 m2) = 11.1 C.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1082 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 314
  
 312
  
 2145
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 484
Previous poll results: Which of the following is the best resource to supplement your studies: