need density and volume equations for my 6th grade son,Will.?
141014
The equation for vol depends on what he's taking the vol of i.e. square sphere etc. \n\nCommon equations for volume:\n\nA cube: s^3 = s*s*s (where s is the length of a side)\nA rectangular prism: l*w*h (length, width, height)\nA cylinder: PI*(r^2)*h (r = radius of circular face, h = distance between faces)\nA sphere: (4/3)*PI*(r^3) (r = radius of sphere) - (which is the first integral of the formula for Surface Area of a sphere\netc.\nmore volume defs @: http://en.wikipedia.org/wiki/Volume\n\nPI = 3.1415926535...\n\ndensity is represented by the symbol rho which looks like a p and the equation for it is p = (m/V) where m is mass and V is volume.
463030
Conversion Calculator here\nhttp://education.yahoo.com/reference/weights_and_measures/index?p=volume
84844
Height = H = 10"\nRadius = r = 4"\n\nVOLUME (not area, volume is 3-dimensional) = (π/3)(r^2*H) = (160/3)*π\n\nSURFACE AREA = (πr)(sqrt(r^2+H^2)) = 4(sqrt(116))*pi
772480
Density is mass per volume.   \nDisregard the weight; it's irrelevant.\nUse volume = lenght * width * height (or depth).
144053
Pay more attention in class! And assuming it is an ideal gas, use PV=nRT. Since there is not change in volume you can basically drop it from the equation and make P=nRT. If you like algebra you can leave it in but it will cancel out eventually. You could solve for 'n' first using initial P and T, and then plug and chug.
188443
try this web site http://www.aaamath.com/grade6.html
329838
Density = mass / volume\nSo 514 g/500mL = ??? g/mL\nAnd that's all of your homework I'll do for you. ;)
783604
volume=pir^2h=1000\nsince there are two variables we need a minimum of two equations
722202
mass = density x volume\n\nvolume = base area x depth = 0.05 m2 x 6 m = 0.3 m3\n\nm = 1000 kg/m3 x 0.3 m3 = 300 kg\n\nweight = mass x g\nG = 300 kg x 9.8 N/kg = 2940 N\n\nPressure = density x depth x g\np = 1000 kg/m3 x 6 m x 9.8 N/kg = 58800 N/m2 or Pascal\n\nAdvice> learn the formulas!
721530
Yes, you can get very many experiments on density. Depends on what you want to do with density. If you want to compare the densities of to different solids in relation to a particular liquid (e.g water) You just measure their dimensions and divide their  mass by their volume to get their density (If you don't know already) . Then you find their Relative density using the equation.
344788
hey man, dont worry ill help. first of all our given:\nh=280m\nsg=1.03\ngc=9.7m/s^2\n\nreq'd Pressure(absolute)\n----------------------------------------------\nsol'n:\nfor DENSITY of subs:\nformula\nSpecific Gravity=density of subs/density of water\ndensity of subs=1.03 x 1000(density for water)\ndensity of subs=1030 kg/m^3\n\nFOR PRESSURE GAGE:\nP(gage)=Vh\nP(gage)=density x gravitational constant x height\nP(gage)=1030 x 9.7 x 280\nP(gage)=2,797,480 Pa\n\nFOR PRESSURE ABSOLUTE:\nP(abs)=P(gage) - P(atm)\n\nwhy minus? bec. the submarine is pressurized, meaning its vacuumed\n\nP(abs)=2,797,480 Pa - 1atm(101.325x10^3 Pa)\nP(abs)=2,696,155 Pa\n\nconvert Pa to Kpa\n=2,696,480 /1000\n=2,696.155 Kpa\n\nconvert to bar\n=2696.155kPa x (1.01325 bar / 101.325 kPa)\n=26.96155 bar\n\ndont mind the others, they dont even know how to answer this simple question. They just want to earn points!
1016233
the equation used to determine density is\nD=m/v \n"D" means density\n"m" is mass\nand "v" is volume of the object.\nmass is the total amount of paritcles something has.  Think of the old trick question: Which weighs more a pound of feathers or a pound of lead.  The answer is they *weigh* the same.  However, now think about how much lead you would need for a pound of it and how many feathers.  Little lead, lots of feathers.  Basically the more matter in a smaller space means higher density.  I really hope this helps.\n\n\nJust thought of another example:\n\nTake 50 pennies.  Put them in a big ziploc freezer bag, press out all the air and zip it shut.  Now, take another 50 pennies and put them in a penny roll--like you see at the bank.  Same amount of matter, 50 pennies.  But they are less densley packed in the bag because the volume of the bag is bigger than the volume of the roll.
1003850
Density = mass / Volume\n\nYou are given the mass of the cyllinder (m = 4 kg).\nYou are given the dimentions of of the cyllinder which you can then use the find the volume.\n\nThe volume of a cyllinder = (pi*r^2)*h\nwhere pi is the constant pi (the ratio of the circumfrance of a circle to its diameter, ~3.1415), r is the radius, and h is the height.\nUsing this formula, I calculate the volume of the cyllinder to be about 9425 cm^3.\n\nD = m / v\nD = 4000 g / 9425 cm^3\nD = 4.24 E-1 g/cm^3 or 424 kg/m^3\nThis is a low density by comparison to many other things, for example, water has a density of about 1 g/cm^3.\n\nNext Time, do your own home work.
1121653
density=mass/volume or something like that, so if u have the density and the volume (aproximations ofcourse) u can find the mass\n\ni think! lol
857152
I'll agree that you need help.  Density is mass/vol.  You've given the density, you need another value to calculate the remaining value.
162268
The density of the fluid and the density of the object.
198865
Volume = (area of the base) x (height)