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
pishuonlain [190]
3 years ago
13

Find the number of Btu conducted through a wall in 8 hours. The wall is 8 feet high by 24 feet long and has a total R-value of 1

6.2 hr⋅°F⋅ft2 /Btu, including the effects of the inner and outer air layers. The inside temperature is 68°F and the outside temperature is 16°F.
Engineering
1 answer:
dedylja [7]3 years ago
7 0

Answer:

ΔQ = 4930.37 BTu

Explanation:

given data

height h = 8ft

Δt = 8  hours

length L = 24 feet

R value = 16.2 hr⋅°F⋅ft² /Btu

inside temperature t1 = 68°F

outside temperature t2 = 16°F

to find out

number of Btu conducted

solution

we get here number of Btu conducted by this expression that s

\frac{\Delta Q}{\Delta t} =\frac{-A}{R} (t2 -t1)     ......................1

here A is area that is = h × L = 8 × 24 = 1492 ft²

put here value we get

\frac{\Delta Q}{8} =\frac{-192}{16.2} (16-68)

solve it we get

ΔQ = 4930.37 BTu

You might be interested in
Lets Try This: study the pictures. Describe what you see and think about it. write your answer on a sheet of paper. home room
Yuliya22 [10]

Answer: I see three children cleaning the lawn while one of them are raking the leaves and one is holding a dust pan. The other child is holding a bucket. On the other picture, i see a young boy watering plants.

BTW: these pictures are not very clear so answers may vary.

Explanation:

4 0
2 years ago
Structural engineers use wireless sensor networks to monitor the condition of dams and bridges.
qwelly [4]

Answer: True

Explanation:

Structural engineering is simply referred to as a branch of civil engineering, and they help in the designing of structures like buildings, dams, tunnels, bridges, tunnels, etc. Structural engineers typically work as consultants.

Wireless sensor networks are used by structural engineers to monitor the condition of dams and bridges. Wireless sensor network refers are dedicated sensors that are used in monitoring the physical conditions of the bridges and to know if they're still in good conditions.

8 0
3 years ago
Complete the following sentence.
Naya [18.7K]

Answer:

Communication

Explanation:

3 0
4 years ago
A circular ceramic plate that can be modeled as a blackbody is being heated by an electrical heater. The plate is 30 cm in diame
MakcuM [25]

Answer:

Heater power = 425 watts

Explanation:

Detailed explanation and calculation is shown in the image below

6 0
3 years ago
A program contains the following function definition: int cube(int number) { return number * number * number; } Write a stateme
Nonamiya [84]

Answer:

The statement can be written as

int result = cube(4);

Explanation:

A function is a block of reusable codes to perform some tasks. For example, the function in the question is to calculate the cube of a number.

A function can also operate on one or more input value (argument) and return a result. The <em>cube </em>function in the question accept one input value through its parameter <em>number </em>and the <em>number</em> will be multiplied by itself twice and return the result.  

To call a function, just simply write the function name followed with parenthesis (e.g. <em>cube()</em>). Within the parenthesis, we can include zero or one or more than one values as argument(s) (e.g. <em>cube(4)</em>).

We can then use the "=" operator to assign the return output of the function to a variable (e.g. <em>int result = cube(4)</em>)

8 0
4 years ago
Other questions:
  • List four reasons why we need aceuracy in machined parts.
    8·1 answer
  • Please describe a real situation in which you had to troubleshoot and fix the failure of a piece equipment/machine?
    5·1 answer
  • What are the two safety precautions taken before driving a car​
    12·1 answer
  • Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part
    9·1 answer
  • What did the ancient Greeks use simple machines for?
    15·2 answers
  • In the designation of wrought Al alloys, eg. 3m, what does the first digit-3- refer to? A. The main alloying element B. Carbon p
    15·1 answer
  • Is the MI-24 Hind the most widely exported combat helicopter in the world?
    14·1 answer
  • A___ remote control can be an advantage to an
    14·2 answers
  • How many squares titles (20cm x 20cm) are needed to coat the sides and base of a pool which is 10m long, 6 meter wide and 3m dee
    8·1 answer
  • 11. What are restrictions when building or completing a challenge?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!