Weight of water around you

[miketsp]

But a ton is from metric system!!!!!
So 13 million kilograms = 13 thousand tons!!!!!
As simple as that :11ztongue
Mania

Unfortunately there are always those who want to simplify the arithmetic and confuse the issue so:

ton, assay (AT)........................kilogram (kg)..........2.916667 E-02
ton, assay (AT)........................gram (g)................2.916667 E+01
ton, long (2240 lb)....................kilogram (kg)...........1.016047 E+03
ton, metric (t)..........................kilogram (kg)...........1.0 E+03
tonne ( ‘‘metric ton’’ in U.S.) (t)...kilogram (kg)...........1.0 E+03
ton, short (2000 lb)...................kilogram (kg)............9.071847 E+02

 

[TCDiver1]

But a ton is from metric system!!!!!
So 13 million kilograms = 13 thousand tons!!!!!
As simple as that :11ztongue
Mania

A "Ton" can mean a lot of things:

One Ton (long) = 1016 kgs or 2240 lbs

One Ton (short) = 907 kgs or 2000 lbs (typical Imperial measure)

One Ton (metric) = 1000 kgs or 2205 lbs

Or if you really want to be confused:
One Ton (refrigeration) = 12000 BTU/Hr or 3.518 KWH

Context mania, context.

 

[TCDiver1]

Unfortunately there are always those who want to simplify the arithmetic and confuse the issue so:

ton, assay (AT)........................kilogram (kg)..........2.916667 E-02
ton, assay (AT)........................gram (g)................2.916667 E+01
ton, long (2240 lb)....................kilogram (kg)...........1.016047 E+03
ton, metric (t)..........................kilogram (kg)...........1.0 E+03
tonne ( ‘‘metric ton’’ in U.S.) (t)...kilogram (kg)...........1.0 E+03
ton, short (2000 lb)...................kilogram (kg)............9.071847 E+02

Mike .... LOL!

 

[rab]

But a ton is from metric system!!!!!
So 13 million kilograms = 13 thousand tons!!!!!
As simple as that :11ztongue
Mania

Well, yes, but that's also the name used in the Imperial (US) system.

Here's an official source.

I'd love to go fully SI units (aka, "Metric") as I've just recently put my dive computer into meters/Celcius mode (and I used to keep my bicycle comp. on km, too). When I read a post about getting 0.1m (about 4inch) resolution rather than 1ft (12inch) readings. The pressure of 10m is also a lot easier to figure in your head than 33ft.

Simple, ... nah!

-Rob

P.S. I hate when people get their posts in faster than mine!

 

[mania]

Guys change your system to the metric one. It makes life easier!!!! All you need is to divide or multiply by 10.
If I have a truck loaded with 2 tons of sand it means it's loaded with 2 thousand kilograms of sand.
Is that context clear?
So if water weights 13 million kilos =13 thousand tons.
Mania
PS. Anyway - you have much too many tons...
1 ton(US) = 2000 lb,
1 long ton(US) = 2240 lb;
1 ton(UK) = 2240 lb;
1 ton(UK) = 1 long ton(US) ≈ 1,01605 t,
1 ton(US) ≈ 0,907185 t.

 

[Spectre]

1 ton(US) = 2000 lb,
1 long ton(US) = 2240 lb;
1 ton(UK) = 2240 lb;

1 ton is 2000 lbs. Just because the UK wants to call it 2240, that's not our fault. That's why we have the 'long ton', so that we keep those brits in their place. likewise the metric world looked at the US, and realized that a term like 'ton' goes a lot better than 'megagram', so they decided to steal it also... hense the birth of the metric ton.

friggin' foreigners!

 

[rab]

How much can you see if you hover at thirty feet?

OK, I'm not sure who's to blame for side-tracking this thread, but the open question was starting to bug me. (BTW, in the initial post "water" was not defined as fresh or salt. I'll leave the distinction until the end. lamont's value of 28million lbs seems to assume fresh, but "waves" might imply salt.)

After finding this reference:
Eric W. Weisstein. "Spherical Segment." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/SphericalSegment.html

I calculate the following:
Initially, break the volume into two equal parts: above and below. Therefore,
R = 60ft (the viz)
a = R
b^2 = R^2 - h^2
h = R/2
b^2 = R^2 - (R/2)^2
b^2 = 3/4 * R^2

So,
V(above) = 1/6 * pi * R/2 * (3R^2 + 3(3/4 * R/2) + (R/2)^2)
= 1/6 * pi * R/2 * (22/4 * R^2)
= 1/6 * pi * 11/4 * R^3
= 11/24 * pi * R^3
with R=60'
V(above) ~= 311,017.67 ft^3
V(below) = V(above)
V = V(below) + V(above)

V ~= 622,035.35 ft^3

fresh @62.4 lb/ft^3 gives 38.8 million lbs or about 17.6 gigagrams
R = 18.3m; V ~= 17,648.8 m^3 = 17,648.8 kL
salt @1.025g/L gives 18.1 gigagrams

Further metric<==>Imperial conversions are left as a private exercise for the reader.

-Rob

 

[scubasean]

fresh @62.4 lb/ft^3 gives 38.8 million lbs or about 17.6 gigagrams
R = 18.3m; V ~= 17,648.8 m^3 = 17,648.8 kL
salt @1.025g/L gives 18.1 gigagrams

Further metric<==>Imperial conversions are left as a private exercise for the reader.

-Rob

But, I wanted it in tons....NOT

 

[RichLockyer]

Guys change your system to the metric one. It makes life easier!!!! All you need is to divide or multiply by 10.

Ya, but that would make me over 400kg, which SOUNDS like nearly a quarter of a ton, and after fighting like heck for the last 4 months to shed 25 pounds, I am NOT going to admit to gaining over 220 units of anything.

If it makes you feel any better, I quite often put 1500 pounds in my half-ton truck

 

[BlueDevil]

But a ton is from metric system!!!!!
So 13 million kilograms = 13 thousand tons!!!!!
As simple as that :11ztongue
Mania

No! A ton is imperial, a tonne is metric.