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MArishka [77]
3 years ago
13

What is the rate of heat transfer required to melt 1-ton of ice at 32 F in 24 hours?

Mathematics
1 answer:
LiRa [457]3 years ago
8 0

Answer:

3865.74 J/s

Step-by-step explanation:

mass of ice, m = 1 ton = 1000 kg

time , t = 24 hours

latent heat of fusion of ice, L  = 334000 J/kg

Heat required to melt, H = m x L

where, m is the mass of ice and L be the latent heat of fusion

So, H = 1000 x 334000 = 334 xx 10^6 J

Rate of heat transfer = heat / time = \frac{334\times 10^{6}}{86400}

Rate of heat transfer = 3865.74 J/s

thus, the rate of heat transfer is 3865.74 J/s.

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A circular table has a diameter of 20 inches.what is the area of the table
Effectus [21]
Hello!

To find the area of a circle you do \pi r ^{2}

the "r" stands for radius which is half the diameter

So we do \pi * 10^{2}

Which gives us the answer of 314.16

Hope this helps!
3 0
3 years ago
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Question 3 (1 point)
Sindrei [870]

Answer:

96

Step-by-step explanation:

(3+6+3)•9-(3•2)-(3•2)

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3 years ago
Can someone pls explain to me how to do this (^。^)
34kurt

Answer:

Area: \frac{8}{15} feet²

Perimeter: \frac{44}{15} =2 \frac{14}{15} feet

Step-by-step explanation:

The <u>formula of finding the </u><u>area</u><u> of a rectangle</u> or square is <u>width multiplied by length</u>.

The <u>formula of find the </u><u>perimeter</u><u> of a rectangle</u> or square is <u>width+width+length+length</u>

Area: \frac{4}{5} *\frac{2}{3} = \frac{8}{15} feet²

Perimeter:

\frac{4}{5} +\frac{4}{5} +\frac{2}{3} +\frac{2}{3} =

\\\\\frac{12}{15} +\frac{12}{15} +\frac{10}{15} +\frac{10}{15} =\\\\\frac{24}{15} +\frac{20}{15} =\\

\frac{44}{15} =2 \frac{14}{15}

4 0
3 years ago
You split $2000 between two savings accounts. Account a pays 2% annual interest and account b pays 5% annual interest. After one
sdas [7]
0.05x+0.02(2000-x)=77.5
0.05x+40-0.02x=77.5
(0.05-0.02)x=77.5-40
0.03x=37.5
X=37.5/0.03=1250 at 2%
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8 0
3 years ago
What is the domain of the function on the graph?
Sergeu [11.5K]
I think it’s x>=-3
That means greater than or equal to btw :)
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3 years ago
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