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The problem in the posed question is the "mass" in the equation you quote is the mass of the object upon which the force (whether it be a photon or not) is acting, NOT the mass of the object exerting the force. You can MEASURE the net force on an object with mass simply by measuring the acceleration of that object and dividing it by the object's mass. Or you can predict an acceleration of an object with mass by calculating what its net force will be, and then dividing that by the object's mass. Unrelated to the above excellent answer, but another comment on the question: You mention, correctly, that photons have no rest-mass. But the photon is never at rest, and at the speed at which it moves from place to place, it has mass.
Mass - the amount of somthing a container can hold
Two basic methods. 1) Experimentation. Hang it from one corner, the center of mass will be on the line downward. Hang it from another corner, that gives you another line. See where the lines cross. 2) Calculation. This requires calculating the average of all points of mass. Imagine dividing the object into small pieces, and calculating the weighted average of all x, y and z-coordinates. This usually implies using advanced mathematics, specifically, integration.
The mass of the first object; the mass of the second object; the distance between them.The mass of the first object; the mass of the second object; the distance between them.The mass of the first object; the mass of the second object; the distance between them.The mass of the first object; the mass of the second object; the distance between them.
The downwards force acting on the mass due to gravity will always be given by the mass of the object by the acceleration due to gravity. As this will not change due to the angle at which you hold it, you will have to exert the same force in both scenarios to hold the mass steady.
The object's density = (its mass) divided by (its volume)
divide its mass by its voulme
It depends what you are calculating. Volume is the amount of space on object occupies; mass is the amount of matter in an object.
Mass divided by Volume = Density. Or use the displacement method for an irregularly shaped object.
Calculating mass means determining the amount of matter in an object: the amount of 'stuff' in an object. Mass should never be calculated by units of weight ( like Newtons). One should follow the standard SI units (like kilograms, grams, milligrams) Happy to help......
The formula for calculating density is as follows: density = mass/volume. Simply put, if you divide an object's mass by its volume, you will find its density. Density is the mass of an object per unit volume.
Andrew made a mistake in calculating density by not properly measuring the volume of the object. Density is calculated by dividing the mass of an object by its volume, and if the volume is incorrect, it will lead to an inaccurate density value.
There is no direct relationship between how much mass an object has and it's volume. That is, mass plays no part in calculating the volume, and volume plays not part in determining mass. However, they are related by the equation to calculate the density. Density=Mass/Volume.
The problem in the posed question is the "mass" in the equation you quote is the mass of the object upon which the force (whether it be a photon or not) is acting, NOT the mass of the object exerting the force. You can MEASURE the net force on an object with mass simply by measuring the acceleration of that object and dividing it by the object's mass. Or you can predict an acceleration of an object with mass by calculating what its net force will be, and then dividing that by the object's mass. Unrelated to the above excellent answer, but another comment on the question: You mention, correctly, that photons have no rest-mass. But the photon is never at rest, and at the speed at which it moves from place to place, it has mass.
mass is how much somthing weighs and volumes is how much liquid an object can hold
Mass, in architecture, refers to how much weight an object can hold, such as a ceiling beam or a floorboard.
The mass of electrons is ignored in calculating an approximate atomic mass, because an electron's mass is only about 1/1836.1 of the mass of a proton or neutron.