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What formula was used in this calculation? (MHA)

1,498
557
Can someone explain this calculation to me?
I have tried to replicate it, but there are many parts that I do not understand
1
I assume it is the volume of a cylinder, but no matter how hard I try, I don't get the same as this calculation

2
I get e18 and not e15


3
Where does the 2.1252e10kg come from?
 
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Never really looked through this calc until now, I cannot follow it either.

Am I just doing something wrong or did they make some kind of mistake?

Also I have a problem with the shape being used, but I'll save it for later.
 
To add something else
the density of the ice, according to what I checked is 0.917 g / cm³, but to obtain the same answer in that part we would have to simplify

0.92 * 1.87e13 = 1.7204e13g / 1.7204e10
0.917 * 1.87e13 = 1.71479e13g / 1.71479e10
 
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1
I assume it is the volume of a cylinder, but no matter how hard I try, I don't get the same as this calculation
I just checked and got almost the same volume as Jack, you are probably using the diameter of the ice and applying it to the formula instead of using the radius.

I get e18 and not e15

I got e15.

Heat Capacity = 1.704e10 x 4181 x (100-0) = 7.124424e15

Where does the 2.1252e10kg come from?
That's weird, no idea where he got that, even multiplying the volume by the density of water doesn't get you that mass.
 
I don't know it
I had forgotten how to obtain the radius in cylinders,
I was just taking the diameter that was given and dividing it into 2 (thinking about it carefully now ... it made no sense)
 
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