menu
QAmmunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
An object has an emissivity of 0.725. At temperature T, it radicates heat at a rate of 10 W. What is its rate of heat radiation at temperature 2 T
asked
Apr 7, 2019
230k
views
1
vote
An object has an emissivity of 0.725. At temperature T, it radicates heat at a rate of 10 W. What is its rate of heat radiation at temperature 2 T
Physics
high-school
GaryM
asked
by
GaryM
8.7k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
2
votes
Radiative power scales with the fourth power of temperature, so 160 W.
Robert Rossney
answered
Apr 13, 2019
by
Robert Rossney
7.7k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Oct 4, 2024
108k
views
Find the net rate of radiation H oc by a pot at 49.7 ∘ C that has been placed in a −21.5 ∘ C freezer. The pot's surface area is 0.123 m 2 and its emissivity is 0.521.
Szajmon
asked
Oct 4, 2024
by
Szajmon
7.9k
points
Physics
high-school
1
answer
2
votes
108k
views
asked
Sep 18, 2024
58.1k
views
A sphere of radius 0.500 m, temperature 27.0°C and emissivity 0.850 is located in an environment of temperature 77.0°C. At what rate does the sphere (a) emit and (b) absorb thermal radiation? (c) What
Yahya Kh
asked
Sep 18, 2024
by
Yahya Kh
8.0k
points
Physics
high-school
1
answer
5
votes
58.1k
views
asked
Feb 2, 2024
217k
views
Calculate the rate of heat transfer by radiation from a car radiator at 110°C into a 50.0ºC environment, given an emissivity of 0.750 and a 1.20-m² surface area. a) 722 W b) 855 W c) 987 W d) 1,112 W
Vyacheslav Shvets
asked
Feb 2, 2024
by
Vyacheslav Shvets
8.9k
points
Physics
high-school
1
answer
5
votes
217k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.5m
questions
12.2m
answers
Other Questions
A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?
What type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
what is a device that transforms thermal energy to mechanical energy
How many light sources do you know Pls list them
A 75-kg refrigerator is located on the 70th floor of a skyscraper (300meters a over the ground) What is the potential energy of the refrigerator? #PLEASE HELP
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search QAmmunity.org