Evaluate the required thickness of styrofoam for the freezer compartment in the previous problem when the inside wall is exposed to air at -10°C through a surface coefficient of 16 W/m2 · K and the outer wall is exposed to 33°C air with a surface coefficient of 32 W/m2 · K. Determine the surface temperatures for this situation.

Answers

Answer 1

Step-by-step explanation:

bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

Evaluate the required thickness of styrofoam for the freezer compartment in the previous problem when the inside wall is exposed to air at −10 c through a surface coefficient of 16 w/m2⋅k and the outer wall is exposed to 33 c air with a surface coefficient of 32 w/m2 ⋅ k. determine the surface temperatures for this situation

Answer 2

Step-by-step explanation:

Evaluate the required thickness of styrofoam for the freezer compartment in the previous problem when the inside wall is exposed to air at -10°C through a surface coefficient of 16 W/m2 · K and the outer wall is exposed to 33°C air with a surface coefficient of 32 W/m2 · K.

sorry


Related Questions


Solve for x
5(x - 2) <3.2 +1
Give your answer as an improper fraction in its simplest form.

Answers

Answer:

x= 14.2/5

Step-by-step explanation:

5(x-2) < 3.2+1

5x-10<4.2

5x<14.2

x<14.2/5

Which situation can be represented by y = 17x - 8

Answers

Answer:

Its the second one

Step-by-step explanation:

y=total cost

each star wars figuirine cost 17 each so x= one star wars figuirine, making it 17x for the cost of however many is bought

and an $8 discount would be subtracting $8 from the total cost (y)

Yeh uuhhhh here so it it cursed i dont really like how it came out

Answers

Answer:

it's kinda cute though

Step-by-step explanation:

Line K has a slope of -5. Line j is perpendicular to line k and passes through the point (5, 9). Create the equation for line j. (Please help me)

Answers

Answer:

y = 1/5x + 8

Step-by-step explanation:

Slope of the perpendicular line: 1/5 (opposite reciprocal)

Point: (5,9)

y-intercept: 9 - (1/5)(5)

= 9 - 1 = 8

Find the rate of change between:
(1,4)
(5,2)

Answers

Answer:

-1/2

Step-by-step explanation:

In a function, the rate of change from x = a to x = b is

rate of change = [f(b) - f(a)]/(b - a)

Here we have

a = 1, f(a) = 4

b = 5, f(b) = 2

rate of change = (2 - 4)/(5 - 1)

rate of change = -2/4 = -1/2

-7= 4+y
solve for y

what is the answer? please help, thank you.

Answers

Answer:

-11

Step-by-step explanation:

y=-7-4= -11

Answer:

Step-by-step explanation:

2x-3x^2-2x+3,(x +1)

Answers

Answer:

Answer Answer

(x+1) • (x-1) • (2x-1)

Will mark brainly :)
In the standard form of a quadratic function, the ___ value tells me the y-intercept.
c
a
b
x

Answers

Answer:

c

Step-by-step explanation:

y-intercept is the function value at x = 0, and we can always substitute x = 0 into the quadratic. Thus, the y-intercept of the quadratic function

y = ax2 + bx + c is c.

in the figure above, bc and ad are parallel, ab and ec are parallel, cd=ce, and the measure of angle abc is 115 degrees. what is the measure of angle bcd

Answers

Answer:

"in the figure above" ?

Help please! I don’t understand

Answers

Step-by-step explanation:

(m-3)w²-8w+8=0........colllecting like terms

m+w²-8w=3-8

m-7w=-5

mw=-5+-7

mw=-12

mw/mw=-12/mw.....mw will be cancled out by mw so the answer is -12/mw

(x+2) (x-2)=? (n+m) (n-m)=?

(r+9) ( r-9)=?

Answers

Answer:

(x+2) (x-2)=[tex]x^{2}[/tex]-4

(n+m) (n-m)=[tex]n^{2} -m^{2}[/tex]

(r+9) ( r-9)=[tex]r^{2}[/tex]-81

Step-by-step explanation:

Find the area of the unshaded region in Fig, where ABCD is a square of side 20 cm and semicircles are drawn with each side of the square as diameter. (Use π = 3.14)​

Answers

Answer:

229

Step-by-step explanation:

Area of square is = 20 * 20 = 400

radius = 20 / 2 = 10

Area of semi circle is = 1/2 * πr²

= 1/2 * 3.14 * 10²

= 1/2 / 314

= 157

assume there are four shaded regions for the figure

Area of 4 semicircles−Area of shaded region=Area of square ABCD

Area of shaded region=Area of 4 semicircles−Area of square ABCD

= 4 * 157 - 400

= 628 - 400

= 228

so each single shaded area is 228/4

= 57

now in your problem there are 3 shaded regions like this

so area of unshaded region is =

Area of square - 3 * shaded region area of one region

=> 400 - 3 * 57

=> 400 - 171

=> 229

1 You are starting a savings account. To open
the account you deposited $110. Your plan is
to add $20 each month.
What is the equation of the function?
A. y = 90x + 20
B. y = 110x + 20
C. y = 20x + 110
D. y = 20x + 90
2 Mark buys stock options for $12,000. The value
of the stock options increase by 10% per year
from the time he bought the stocks.
The value of Mark's stock options, V( t) , can be
represented by which of the following functions?
A. V(t) = 12,000(0.10)t
B. V(t) = 12,000(0.90)t
C. V(t) = 12,000 + 0.10t
D. V(t) = 12,000(1.1)t
3 Ezra bought an autographed movie poster to add
to his collection. The value of the poster, in
dollars, can be modeled by the following function,
where x is the number of years that have passed
since Ezra bought the movie poster.
P x = 135 1.03 x
What does the number 135 represent in the
function?
A. the value of the movie poster one year after
Ezra bought it
B. the rate at which the value of the movie poster
increases
C. the value of the movie poster when Ezra bought
it
D. the amount the value of the poster increases
each year
4 A city with a population of 100,000 is having
pollution problems and is decreasing in size
2% annually (every year).
What would be the remaining number of
people after 100 years? (Round your answer
to the nearest hundred people.)
To receive FULL CREDIT be sure to show your
thinking in Illuminate. You could write an
equation, create a table, or write a brief
paragraph describing your process to find the
solution.
CRQ.HSF.LE.A1/c/B5 Assessment ID: dna.77005 ib.2800535
Directions: Answer the following question(s).
Illuminate Itembank™ Stop: You have finished the assessment.
Generated On November 17, 2021, 2:41 PM PST Page 1

Answers

Answer:   1 is c)   2 is c)    3 is a)   4 is

Step-by-step explanation:

AT&T offers a deal for internet service that is $20 a month. There is an intial fee of $50. If Tim spent $330 on his internet access, how many months did he pay for?

Write and Equation then solve the equation​

Answers

Answer:

162 months

Step-by-step explanation:

if I'm correct it should be 162

I WILL GIVE YOU BRAINLIST Liam and kiki are tigers living at the libertyville zoo. Liam weights 7 pounds for every 4 pounds that Kiki weighs. If Liam is 90 pounds more than Kiki, how many pounds does he weigh?​

Answers

Answer:  Kiwi is 120 lbs and Liam is 210 lbs

Step-by-step explanation:

Let L= Liam's weight, and K = Kiwi's weight.

We know that L/K = 7/4

We also know that L = K + 90

Rearrange the first equation to find K:  

L/K = 7/44L = 7KK = (4/7)L

Now use K = 4L/7 in the second equation:

L = K + 90L = (4/7)L + 90(3/7)L = 90L = (90)*(7)/3L = 630/3L = 210 lbs

Check the math:

If L = 210, then K must be L - 90, or 120 pounds

Does L/K = 7/4?

(L/K) = (210/120) = 7/4  YES

Work out the perimeter of the shaded shape.

Answers

The answer is 38m because the longest side is 11m+2m+3m+6m+3m+6m+5m+2m=38m

How many spaces in which direction do you need to move the decimal to make a whole number? .0004

5 Spaces to the right

4 spaces to the left

4 spaces to the right

3 spaces to the left

Answers

Answer:

4 spaces to the right

Step-by-step explanation:

hope this helps!

A kennel has 25 cats and 45 dogs. Write the ratio of cats to dogs as a fraction in simplest terms

Answers

Answer:

5/9 in simplest form  

Step-by-step explanation:

25/45 simplified is 5/9

Factor the expression
x2 + 4xy - 117y2?

Answers

Lets Factorize the given expression:-

[tex]️{x}^{2} + 4xy - 117 {y}^{2} [/tex]

Splitting the middle term :-

[tex]{x}^{2} - 9xy + 13xy - 117 {y}^{2} [/tex]

[tex]( {x}^{2} - 9xy) + (13xy - 117 {y}^{2})[/tex]

[tex]x(x - 9y) + 13y(x - 9y)[/tex]

[tex](x - 9y)(x + 13y)[/tex]

So, the final answer is:-

[tex](x - 9y)(x + 13y)[/tex]

Helppppppppppppppppppppp

Answers

Answer:

2. [0, 10]-y goes from 10-0 1. (3, 7)- that is the increasing period

Step-by-step explanation:

already did

note-try doing control-shift-4 for those questions-you don't need the whole screen

Answer:

2. (0,20)

Step-by-step explanation:

I'm trying to figure out 3

The amount of money an hourly employee makes, m, for working h hours can be represented by the equation m = 16.20h. What is the constant of proportionality of
the equation?
O
18.60
O
32.40
O 16.20
O 810

Answers

Answer:

rewrite that those random O´s are confusing

Step-by-step explanation:

A city discovers that its population has been tripling every year. The function graphed models the population (in thousands) after x years.

Answers

Answer:

African Americans contributed to the war by

combat service elements alongside their white counterparts and were involved in all major combat operations, including the advance of United Nations Forces to the Chinese border. Two African-American Army sergeants, Cornelius H. Charlton and William Thompson, earned the medal of honor.

Step-by-step explanation:

Pls help :))))))))))))))))))

Answers

Answer: the answer is cups and M + W + F

How do you write 7.8 as a percentage?

Answers

7.8 x 100 = 780% that’s the answe

Answer:

780%

Step-by-step explanation:

To convert from decimal to percent, just multiply the decimal value by 100. In this we have: 7.8 × 100 = 780%

hope it helps~

Alan has $700 in a savings account. The interest rate is 10% per year and is not
compounded. How much will he have in total in 1 year?

Answers

Answer:

$770

Step-by-step explanation:

700 + 10% of 700 = 700 + 70 = 770

Please help I’m home alone and this is due tonight: Adult tickets to an amusement park cost x dollars. Children's tickets costy dollars. The Henson family
bought 3 adult and 1 child tickets for $204. The Garcia family bought 2 adult and 3 child tickets for $192

Answers

Answer:

$60 for adults (x), $24 dollars for children (y)

Step-by-step explanation:

Solve using systems of equations

3x + y = $204

2x + 3y = $192

y = 204 - 3x

2x + 3( 204 - 3x) = 192

2x + 612 - 9x = 192

-7x + 612 = 192

420 = 7x

x = $60 for adults

y = 204 - 3(60)

y = $24 for children

if you added the two polynomials below, what would be the leading coefficient? what number goes where the question mark is
(-7x+7)+(-2-5)

Answers

Answer:

x and all the way to the way to the way to the way

Answer:

options?

Step-by-step explanation:

There were 45 apples and 28 oranges at the grocery store. Write the ratio of oranges to apples

Answers

Answer:

45:28

Step-by-step explanation:

Happy to help :)

What is the slope of this line?
y=-1/3x+1/4

a.-1/3
b.1/4
c.1/3

Answers

im pretty sure its -1/3 :)

Hello there!

The slope of this line is [tex]-\frac{1}{3}[/tex].

Remember this formula:

y=mx+b

m is the slope

b is the y-intercept

Therefore, the slope is: [tex]-\frac{1}{3}[/tex].

Hope this helps you!

~Just a felicitous girlie

[tex]SilentNature[/tex] is here to help

Please help. Don’t answer if you don’t know. Your waisting my points when you do so. I need it to be right also. Thanks-

Answers

Answer:

what? answers I can see it

Step-by-step explanation:

please check before you message

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