1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hatshy [7]
3 years ago
10

Thermal conductivity of a material is given as 129Btuft–¹ h–¹°F–¹.Calculate this thermal conductivity in Jm–¹s–¹°C–¹(Given: 1Btu

=1055J;0.3048m=1ft; and 1 °F= (5/9)°C)
Physics
1 answer:
ss7ja [257]3 years ago
3 0

Answer:

223.25 $\text{Jm}^{-1}\text{s}^{-1}^\circ\text{C}^{-1}$

Explanation:

The thermal conductivity of an object is defined as the measure or the ability of the object to transfer heat or conduct heat through its body.

In the context, the thermal conductivity of the material is given as

$=129 \text{ Btu ft}^{-1}\text{h}^{-1}^\circ\text{F}^{-1}$

And it is given that :

1 Btu = 1055 J

1 ft = 0.3048 m

$1^\circ F = \frac{5}{9}^\circ C$

We know that 1 h = 3600 s

So the thermal conductivity of the material in $\text{Jm}^{-1}\text{s}^{-1}^\circ\text{C}^{-1}$ is  :

Thermal conductivity :

$=\frac{129 \text{ Btu}}{1 \text{ ft }\times \text{1 h}\times 1^\circ\text{F}}$

$=\frac{129 \times 1055 \text{ J}}{0.3048 \text{ m} \ \times 3600 \text{ s}\ \times \frac{5}{9}^\circ \text{C}}$

=  223.25 $\text{Jm}^{-1}\text{s}^{-1}^\circ\text{C}^{-1}$

You might be interested in
On a violin, the highest note Mandy can play is an A-note, which produces a sound wave with a high frequency. The lowest note sh
lora16 [44]
I think the answer would be: The G-note's wavelength is longer

Here are the formula to calculate wavelength

Wavelength = Wave speed/Frequency

Which indicates that the wavelength will become larger as the frequency became smaller.

6 0
3 years ago
Read 2 more answers
Please help on any part you can. I know it is a lot but any help I’d greatly appreciate. I attempted the problem but still do no
Alika [10]

Answer:

Please help on any part you can. I know it is a lot but any help I’d greatly appreciate. I attempted the problem but still do not understand. Thank you so much!

Explanation:

Please help on any part you can. I know it is a lot but any help I’d greatly appreciate. I attempted the problem but still do not understand. Thank you so much!

\boxed{lol}

7 0
2 years ago
Which letter represents a wavelet
Blizzard [7]
A/c/d. that is the anser hope it helps
6 0
3 years ago
Read 2 more answers
What is reflection of light question mark write the laws of reflection of light ​
Zarrin [17]

Answer:

Reflection of light means the bouncing back of light in another direction after hitting a smooth polished surface

<h3><u>laws </u><u>of </u><u>reflection</u></h3>

1) Angie of incidence is equal to the angle of reflection

2) The nornal ray, reflected ray and the incident ray all lie in the same plane

3 0
3 years ago
This is physical education .,.
Paul [167]
Increase the frequency, intensity would increase muscle mass and the other two wouldn't help improve anything
6 0
3 years ago
Read 2 more answers
Other questions:
  • If we compare the force of gravity to strong nuclear force, we could conclude that A.gravity is the weaker force; it is related
    7·2 answers
  • Two cars A and B are 100m apart moving towards each other with
    8·1 answer
  • How do paved parking lots and roads with concrete or asphalt affect water flow on the land?
    6·1 answer
  • Whose contributions to astronomy explained how planets were held in their orbits?
    12·1 answer
  • Question 14 of 25
    14·2 answers
  • What is the relationship between carbon and energy?​
    8·1 answer
  • 5x - 1 1 - 2x<br>3<br>5<br>11.152<br>&lt;8+2​
    5·1 answer
  • Complete this paragraph regarding dangers from the Sun.
    13·2 answers
  • A 40 kg boy is moving upwards upwards in a lift with an acceleration of 2 m /s ^2 what would be the weight felt by him if measuu
    8·1 answer
  • Identify the relationship between kinetic energy and gravitational potential energy for the cyclist at each position
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!