No
No, the mass of a metal sphere does not change when it is given a positive charge. Mass is a measure of the amount of matter in an object, and adding a charge does not change the amount of matter present in the sphere. The charge is a property of the particles within the sphere, not the mass itself.
Yes, the mass of the sealed cup of water would remain the same as long as no water is added or removed from the cup. The mass is a measure of the amount of matter in the system, which would not change in a sealed environment.
Yes, when water evaporates, its mass does not decrease. The water molecules simply change from a liquid state to a gaseous state, but the total mass of the water remains the same.
The reduced mass of water is approximately 8.3 × 10^-27 kg. This value is calculated to account for the relative motion of the atoms in the water molecule which affects its overall mass.
No. Atomic mass is a measure of mass, not charge.
Change in mass -------------------- Change of water That is change in mass divided by change of water
The value of an impulse is the change in momentum. If the mass remains constant it is the mass times the change in velocity.
No
no.
Your mass, the mass of the tub and the specific gravity of the water do not change, whether you are in the tub or not.
You can change the mass of water in two ways: increase or decrease the amount of water or change the isotopic composition of the molecules of water. The first will have no effect on the mass of 1 cc of water. The second will. If you replace the hydrogen atoms in the "normal" water molecules with deuterium atoms you will increase the density (mass/cc) of the water.
The volume increase, mass does not change.
Force is equal to mass multiplied by acceleration. Acceleration is change in velocity either positive or negative. Mass is always positive.
No
the mass of one litter of water is 1g and the mass does not change due to different gravity.
No, the mass of a metal sphere does not change when it is given a positive charge. Mass is a measure of the amount of matter in an object, and adding a charge does not change the amount of matter present in the sphere. The charge is a property of the particles within the sphere, not the mass itself.