i wonder how many lbs. per square inch my 55 gallon fish tank is applying to my floor?
926756
easy math\n\nI bet it has a 1/2 inch rim around it so only psi on that part. \n\n55 gals x 8 lbs per so about 400 pounds.\n\nabout 120 inches around so round to 100, 4 psi
868854
Here's a good way to do this:\n\nGlass is mostly silicon dioxide, otherwiswe known as quartz.  According to wikipedia, quartz has a density of 2.65g/cm3.  \n\nNow take the dimensions of the tank (if you only have an inch ruler, multiply each by 2.54.  That gives you the answer in cm.  multiply the length times the height, times 2, that's two of the walls.  Now the width times the height times 2, that's the other 2 walls.  Now the length times the width, that's the floor.  Add all 5 up.  Now multiply that number by the thickness of the glass panels.  That's your volume of glass in cm3\n\nNow assuming that the density of the glass and the density of quartz are the same (they are, roughly), all you need to do is multiply the volume of glass times the weight of glass per unit of volume (that's called density) and you get the weight of the glass in grams.\n\nIf you need to give your answer in pounds, divide your answer by 454, since there are 454 grams per pound.
104873
The same as an empty one. You can maybe find the shipping weight on the side. about 100 lbs?\nOh and that's not counting the forty gallons of water 333.81616 lbs. But that's the water, not the heater\nJeronimo!
524695
1 US gallon = 231.000001 cubic inches
225482
Assuming that you mean a cylindrical tank, find its volume using the formula V=(pi)(r^2)(h).  To find the radius, plug the 12' circumference into the formula C=2(pi)(r).\n\nYou need to convert 38'5" to just feet.  \n\nConvert your answer, which will be in cubic feet, to gallons.  1 gallon=0.1336805 cubic feet.
1052952
1650 lumber has a specific gravity of about 0.42.  This means its density should be close to 26.19 lbs/ cu. ft.  The one foot 2x4 should weigh 1.46 lbs.
1180639
You can take the average of the two (88.2 + 50) / 2 and get 69.1.  Given the information presented, this is your best answer.\n\nUnfortunately, this answer is not likely correct.  If the indoor units and outdoor units are the same size, this is true.  But let's say the outdoor unit has a capacity of 100 and the indoor unit has a capacity of 500.  You're certainly not 69% full, as there is lots of room for growth left.  \n\nWhat you really need here is a weighted average.  If we take my numbers, 100 and 500, determine each's weight as a percentage of the total: 100/600 and 500/600, and multiply these by the percentages:\n\nIndoors: (500/600) * .50 = .49 weighted\nOutdoors: (100/600) * .882 = .017 weighted\n\nAdd these weighted averages together and you'll get a more accurate representation of how full you are.  By my numbers, still 56% capacity instead of 69%.
416654
This answer will depend on the density of the water that is used.  According to Wikipedia the density of Water is \n1000 kg/m^3.  The equation for density is as follows:\n\nDensity=Mass/Volume\n\nMultiply both sides by volume gives us the following equation\nMass=Density*Volume.\n\nGiven: \nVolume=1 cubic foot\n\nDensity of Water=1000 kg/m^3 \nYou most likely want how many lbs of water you need; thus we need to convert the Density of water from kg/m^3 to \nlbs/ft^3\n\nThus using an online conversion:\n1 kilogram/cubic meter = 0.062 427 962 pound/cubic foot\n1000kg/m^3= 62.43 lb/ft^3\n\nThus finally\nMass=Density*Volume\nMass=62.43 * 1\nMass=62.43 lbs approximate!\n\nNow since your designing it you want to design over 25%\nso therefore design for 78.04 lbs.  Worry about the pressure on the sides more when designing this system.
438224
If it's an ellipse the area is pi*r1*r2, r1 and r2 being the semimajor and semiminor axes. This is 3.14*25*9 ~= 705 sq. ft. You'll have to estimate the average depth. If it's 4 feet you have 4*705 ~= 2820 cu ft. There are ~7.5 gallons in a cu ft, so that's 7.5*2820 ~= 21200 gallons.
312260
It's about 10 lbs per square foot. (Multiply the density of steel, about 490 pounds per cubic foot, times the thickness of the plate in feet, 1/4 in. = .02 ft.) I'm assuming you mean 1/4 in. plate.
115336
Well first lets get the weights figured out,\n\n9% soloution,\n\nweight= (9.57 lbs/ gallon) * 6 gallons\n      = 57.42 lbs\n\n0.5% soloution,\n\nweight = (8.34 lbs/gallon) * 60 gallons\n       =500.4 lbs\n\nTotal weight = 500.4 lbs + 57.42 lbs\n             = 557.42 lbs\n\n\nnow 9% of 57.42 lbs= 5.1678 lbs\n    0.5% of 500.4 lbs= 2.502 lbs\n           Total = 2.502 +5.1678\n                 = 7.6698 lbs\n\nso to get the percentage,\n\n7.6698 lbs / 557.42 lbs\n=0.01376\n=1.376% (approximatley)\n\nSo the conecntration is approx 1.4%\n\nhope that helps
108071
GO TO:\nhttp://aquarium.ucsd.edu/challenger/index.cfm
146194
53.455 gallons exactly
913724
Hi Kid,\nNone, of course. You've already used it up on the 600 sq ft.\nOK. I'll stop being silly.\nHow about 200 sq ft?\nBest regards, \nDave.
580603
stick it in a tank of water then measure the water displaced.archemedes law
47283
You can find how many square feet the kitchen is by multiplying 18*15. This equals 270 sq. feet.  (The * means multiplication)\n\nSince each tile is one square foot, you will need 270 tiles.  Multiply the number of tiles by $18, and thats the cost to cover the floor.\n\nEquations:  \nLength * Width\n\n(Number of Tiles) * (cost per tile)
115612
Hey what is your climate? You know what? It doesn't matter. 150 sq ft is like a walk in closet. Get the smallest window unit you can find. Or get a great big one from a thrift store or flea market. A hand held fan blowing over an ice tray could cool that room. That must be a school question or something so you probley want pounds. 15lbs