how are density and specific gravity related?
830453
The terms are similar, but they do differ.\n\nDensity, as usually expressed, is in grams/cubic centimeter-----for example, the element mercury has a density of 13.6 grams per cubic centimeter.Density is non-variable.\n\nSpecific Gravity is a way of relating weights of substances to the weight of water. Therefore, specific gravity, as we measure it, is really specific gravity in the earth's gravitational field at sea level at 0 degrees C.
968496
Density = mass/volume therefore mass = density * volume
1169302
Yes, gravity exists near anything that has mass.  If you remove the air from a container, what's inside won't float.
1045412
gravity is an inverse square law type graph , you can plot it at y=1/x^2\ntry this site http://hyperphysics.phy-astr.gsu.edu/hbase/forces/isq.html\n\nanother graph is available here\nhttp://csep10.phys.utk.edu/astr162/lect/light/intensity.html
827958
The first part is correct.  If the numbers in the second part are correct, it is true only for an ideal gas.  Other materials have various densities in their liquid and solid states.
918848
According to general relativity, the matter inside a black hole collapses to a single point: a "singularity".  At this point, the mass density (ρ = m/V) is undefined (because the volume of a single point is zero). \nWe have a lot to learn about extreme cases such as this.
208900
Specific gravity.\n\nPure water has a density of 1 (the mass of 1 cubic centimetre of pure water is precisely 1 gramme), if something was twice as heavy as water (i.e. it has twice the mass) it would have a specific gravity of 2, 6 times as heavy and the SG would be 6.  If something was half as light as water it's SG would be 0.5 and so on.
733307
Here you go ...\n\na)  The idea of buoyancy was summed up by Archimedes, a Greek mathematician, in what is known as Archimedes Principle: Any object, wholly or partly immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. \n\nb)  DENSITY is a physical property of matter, as each element and compound has a unique density associated with it. Density defined in a qualitative manner as the measure of the relative "heaviness" of objects with a constant volume.\n\nFor example: A rock is obviously more dense than a crumpled piece of paper of the same size. \nA styrofoam cup is less dense than a ceramic cup.\n\nDensity may also refer to how closely "packed" or "crowded" the material appears to be - again refer to the styrofoam vs. ceramic cup. \n\nc)  Low pressure areas have less atmospheric mass above their location, whereas high pressure areas have more atmospheric mass above their location. Similarly, as elevation increases there is less overlying atmospheric mass, so that pressure decreases with increasing elevation.  As elevation increases, the number of molecules decreases and the weight of air therefore is less, meaning a decrease in air pressure. In fact, while the atmosphere extends more than 15 miles (24 km).\n\nI hope this helps.
879131
To determine density you also have to know the temperature.  The colder a substance gets, the more dense it becomes (ie. the particles come closer together).  Water is the one odd ball, it becomes most dense at 4 degree C instead of below freezing like most substances.
457644
It does indeed have a higher specific gravity than fresh water.\n\nPure water has a specific gravity of 1000 kilograms per cubic meter\n\nSea water (in general) has a higher specific gravity, on average it is around 1026 kilograms per cubic meter
1000766
The low technology approach is to use a densitometer.  This can be as simple as a hydrometer as used in the brewing industry to check for specific gravity (density).  From a measured density and a known volume and if you know the densities of both liquid components of a binary mixture you can work out the relative proportions of each using simultaneous equations and hence the concentration of one in the other.
241737
The rate at which gases diffuse is inversely proportional to the square root of their densities. \n\nSince volumes of different gases contain the same number of particles (see Avogadro's Hypothesis), the number of moles per liter at a given T and P is constant.  Therefore, the density of a gas is directly proportional to its molar mass (MM).
580873
Specific gravity and molecular adherence
608826
It's in reference to density and is the ratio to the density of water at 25 degrees celcius.\n\nBasically, water is 1 g/cm^3. So something with a specific gravity of 25 will have a density of 25 g/cm^3.
578115
I think that the gravitational attraction between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them.\nF = G * m1*m2/r²
1103496
do u have its density?
748818
Your density will be similar to whatever material makes up the planet.  For instance, Mars is mostly rock, with some iron ore.  I'd guess the density is on the order of 2.5 g/cm3.  Jupiter is made up of mostly dense gases.  I'd guess given the temp, that the density is slightly higher than that of water, like 1.3 g/cm3.\n\nVolume on the other hand.......are you kidding?  You seriously want it in cm3????  You'll run out of room on your paper writing zeros.