Weight of a fish tank?
355828
Lets use ice for example, if you put ice into a cup of water, rather that ice sinks, floats, or melts, you will still have a weight of the ice plus the water.\n\nSo the answer is 11 pounds. Even though the fish floats, it is still excerting a pound of pressure on the tank of water.
925743
This is pretty straightforward.\nFirst you have to write the formula fo rthe cost of the tank as a function of, say, its radius, r:\n\nThe volume of the cylinder is 100 cubic feet.\nIt is also pi*r^2 times the height, h\n\nso let's solve for h\n100=pi*r^2*h\nh = 100/(pi*r^2)\n\nnext, the cost:\nthe rectangle cost is 2.40*(h*2*pi*r),\nor 2.4*100/(pi*r^2)*2*pi*r\nor, simplifying, 480/r\nThe cost of the base and top are:\n1.50*2 pieces * pi*r^2\n\nSo the total cost is\n480/r+3*pi*r^2\n\nNow you need to differentiate this and find the roots, and make sure they are minima, not maxima!
508321
If you don't have the money to go buy weights to work out with, take 2 empty milk jugs, fill with water. They will weigh 8 ponds each. Start with those and just keep adding. You can also use an old broom stick to hang the milk jugs on. Just use tape.
1131675
nope.  no tanks from gaf, or at least none that i could find.  try the cesco ones, they're light and sturdy.\n\nhttp://www.calumetphoto.com/item/CS7310.html
151746
Weigh it.  Each gallon weighs 10 pounds.
263623
1 Gallon of water weighs 10 lbs\n1 cu ft of water weighs 64 lbs\nTherefore (100/12)x(64/10) = 53.33333 gallons
182655
water 8000 pounds \nair not even 1\nhelium (-1)\nlead - really heavy\n\nhope that helps - im guessing you ment water - salt water weights a bit more
566632
once you have the dimensions for the aquarium.\nyou'll want to find the volume of it.\n\nVolume = length x width x heigth\n\nconvert the volume into ounces (can be done using any website that does conversions)\n\nAnd divide that by 8...and you have your answer
1044477
the smaller tank is 900L and the bigger tank is 1200L\n\nTank 1 = T\nTank 2 = T+300\n\n(2/3) T = (1/2) (T+300)\n(2/3) T = (1/2) T + 150\n(4/6) T = (3/6) T + 150\n(1/6) T = 150\nT = 900
430952
Well, what quality to you want to measure -  size?  The weight?  The density?
215877
1 liter is a cubic decimeter. There are 1000 dm3 per m3, 264.17205 gallons per m3 and 3.7854118 liters per gallon.\n\nVolume can be calculated by the equation:\narea*height. So if you have a nice symmetrical tank just try to calculate its bottom (or top) area and then multiply with the height.\n\nArea is calculated with either:\nside*lenght of the tank for squares or for circles:\nradius^2*pi\n\nIf your tank is neither cylindrical nor cubical you may have your work cut out for you. Determine which shape it resembles the most.\nA sphere:\nV=(4*pi*r^3)/3\n\nA prism:\nV=B*h\nwhere h is height and B is the bottomarea of the parallell trapeze:\nB=(h*(a+b))/2\n\nFor a pyramid:\nV=(B*h)/3\n\nFor a straight circular cone:\nV=(pi*r^2*h)/3\n\nIf all else fails just fill that sucker with water (if it´s not a monstersized tank). You need to check it for leaks anyway. Weigh it empty and subtract that from the weight of the tank full. 1 liter (dm3)= 1 kg.
152321
1 gallon of water=8.33 pounds\n\n\nGallons into Pounds: Multiply the specific gravity of the liquid by 8.33* (weight in pounds of 1 gallon of water); then multiply this result by the number of gallons, to obtain the weight in pounds.
252526
none. amps has no weight, its a flow of current. It's like calculating tonnage to speed. How many tons does 100 mph represent?
987831
1 gallon= 128 fluid ounces\n1 kilogram= 2.25 lbs\n1 ounce= about 28 grams
400038
5 gal is 35lb you do the math
410052
Gallons of water. It depends on how dense the material is that you are weighing.  Gallons are a measure of volume and tons are a measure of weight.
617024
There is no specific weight...it is your choice BUT the lighter the better!