How do you find the mass of an object?
92955
The mass of an object is NOT the same as the weight. \n\nWeigh the object. In the avoirdupois system the weight is in pounds. In the metric system, the weight is in newtons. \n\nDivide the weight by the local acceleration of gravity (roughly 9.8 m/sec^2 for the metric system, and 32 ft/sec^2 for the avoirdupois system). The result is the mass of the system. In the metric system, the unit of mass is the kilogram. In the avoirdupois system, the unit of mass is the slug. \n\nThe local acceleration can vary from location to location on the earth, so one way to estimate the local acceleration is by using an object of known mass. Weigh the known mass, and divide its weight by the known mass to find an estimate of the local acceleration. \n\nThere are many other methods for finding the mass including multiplying the volume of the object by its density. The volume can be found by measuring it, or submerging the object in water (or other liquid) and measuring the amount of displaced water (or liquid).\n\nGravitational mass is the same as inertial mass, for unknown reasons, so one could also devise methods that estimate inertial mass. For example, one could measure the centrifugal force on a string attached to the object while it is being spun (by introducing a spring in between, and measuring the stretch of the spring, for example). One could stage an elastic impact between the object and another object of known mass, and knowing the velocities before and after impact, compute the mass of the object. \n\nThere are many many other methods one could use.
94009
Weight can be determined by mass and the pull of gravity exerted on an object. But mass is not an indication of weight. Mass is presumed to be constant through varying gravities while weight fluctuates because it is proportional to both of these variables.
971560
well, first you have to calibrate it to make sure that the pointer thing is at the line. Turn the nob to calibrate it. Than put the object on the little plate thingy mobober. First, do the heaviest weight and figure out which weight would be the heaviest it can without going tooooooo heavy (if it is too heavy, the indicater/pointer will go below the line). Repeat for the second heaviest, than the lightest.
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.
738420
To calculate atomic mass of an element, it is just a weighted average of the naturally occuring isotopes.  For example:\n\nIf element A has two isotopes, A-23 and A-24, the masses are 23.5 and 24.5 respectively, and the percentage abundance is 93.0% for A-23 and 7.00% for A-24, you would:\n\nMultiply mass of A-23 (23.5g) to the decimal of the percentage (ie.  93.0%/100 = .930).  You would then do the same thing with A-24, and now you will have two numbers.  The final step, you sum the two numbers you obtained by the previous calculations.\n\nI know this is a general example with a made up element and made up numbers, but it is all that comes to mind when I read your question.  I hope this helps.
1044460
There are many different ways of doing this:\n\nUsing some sort of scale that will tell you "this has a mass of 357 grams"\nUsing a balance - place the object you want to find the mass of on one side, place masses of known weight on the other until the two sides balance.\nIf you know the density, you can immerse it in a liquid, measure the volume of liquid that is displaced, and then find the mass based on that.
490259
The mass of earth is found as follows.\n\nThe acceleration due to gravity at a place is g. \ng = G M/R^2, where, G is gravitational constant, which is determined experimentally with two known masses.\n\nR is the radius of earth which we know by surveying the circumference of earth.\n\n M = 9.8 x 6400,000 x 6400, 000x / 6.673x10^ (-11) = 6x10^24kg.\n\nThe mass of Sun is found as follows.  \n\nWe determine the distance of Sun observing their angular diameters measured from different heights from earth. \n\nWe observe its period of rotation about the earth.\n\nNow using the formula ‘M = 4pi^2 R^3/G T^2’, M is found\n\n39.48 x (1.496x10^11) ^ 3/6.673x10^ (-11){365.25x24x60x60}^2= 1.989x10^30 kg.\n\nSince we know the mass of Sun, we can use only the period of rotation to find the mass without knowing the distance.\n\nAbout the mass of stars, I don’t know whether there is some way to find their mass.
123626
The equation for finding inertial mass is: m = F/a\n\nA known force F is applied, and acceleration (m/s^2) a is measured.
677263
Density is mass/volume.  Find its mass by weighing it. Find its volume by immersing it in water and measuring how much water it displaces.  That is its volume.\nDivide mass by volume and you've got density.\nP.
515258
There are 2 kinds of mass:\n\nGRAVITATIONAL MASS:  The mass you can calculate from Newton's Law of Gravity:  F = G*m1*m2/r^2\nhere m1 and m2 are the gravitational masses of two objects.\n\nINERTIAL MASS:  The mass one can calculate from Newton's 2nd Law of mechanics:  F = m*a\nhere m is the inertial mass of an object.\n\nThey are equivalent (according to Einstein's General Relativity), but it doesn't mean that having one means having the other.  So photons (light) have gravitational mass, but not inertial mass, and so they can travel at the speed of light and at the same time be affected by gravity.\n\nHope I helped.
613586
For calculating weight you will be needing the specific gravity or bulk density of the material it is made of.\nElse you need a weigh balance.
1051717
To find the x coordinate of the center of mass, multiply each piece of mass by its x coordinate, add them all together, and divide the sum by the total mass. In our situation, we use y as our piece of mass, multiply it by x, and divide by the total area. Of course, we need to use integrals, and the formula looks like this:\n\nx = integral(y*x*dx) / integral(y*dx)\n\nwhere y is the difference in the two equations (2x+3-x^2).\n\nI hope you know how to do integrals, so I won't show all that work. It comes out to be (32/3) / (32/3) which is 1.\n\nThe process is similar for calculating the y coordinate, except the integrating is complicated. First, rewrite the equations into "x =" form. The total area remains the same, but you will need to break the numerator into two parts: an integral from 0 to 1 of 2 times square root y * y * dy plus an integral from 1 to 9 of (square root of y - (.5y - 1.5)) * y * dy. After evaluating, you should get (.8+532/15)/(32/3) = 3.4. The coordinates of the centroid are (1, 3.4).
325473
Measure the weight of 1 cup of sand and figure it from there.\n\n :-)
103036
We often use the terms "mass" and "weight" interchangeably in our daily speech, but to an astronomer or a physicist they are completely different things. The mass of a body is a measure of how much matter it contains. An object with mass has a quality called inertia. If you shake an object like a stone in your hand, you would notice that it takes a push to get it moving, and another push to stop it again. If the stone is at rest, it wants to remain at rest. Once you've got it moving, it wants to stay moving. This quality or "sluggishness" of matter is its inertia. Mass is a measure of how much inertia an object displays. \n\nWeight is an entirely different thing. Every object in the universe with mass attracts every other object with mass. The amount of attraction depends on the size of the masses and how far apart they are. For everyday-sized objects, this gravitational pull is vanishingly small, but the pull between a very large object, like the Earth, and another object, like you, can be easily measured. How? All you have to do is stand on a scale! Scales measure the force of attraction between you and the Earth. This force of attraction between you and the Earth (or any other planet) is called your weight. \n\nhttp://www.exploratorium.edu/ronh/weight/
851431
MASS / VOLUME\n that's way you measure it in g/mL
613715
First find the volume of the object, i.e metal, by placing it in water and then u know the amount of water displaced.\nIf it displaces half the water than it's weight, then u know that it's specific gravity is twice that of water.
406596
no idea...but I think you use the formula (Gravitational constant x mass 1 x mass 2) / distance squared