1380 g = 1.38 kg
For each new object, you add its mass to the sum of all the masses that went before.
It depends on the size (dimensions) of each box, which needs to be stated. Otherwise it is impossible to work out the mass.
"Average" is another word for "mean." If 50 nails have a mass of 200 grams, the average mass of one nail is 4 grams. When nails are made, they are not all exactly the same - there is a slight variation in the make up of each nail, and thus in the mass of each nail. Given that 50 nails have a mass of 200 g, the (mean) average mass of each nail is 200g / 50 = 4 g; however, there will be some nails that have a mass less than 4g, (eg 3.99g, 3.95g, 3.9g) and some with a mass greater than 4 g (eg 4.01g, 4.05g, 4.1g), but they are all have a mass of about 4g. (It is likely that they are normally distributed about the mean mass of 4g.)
5680.735grams
The answer depends on the mass of each bag.
The mass of the elements that are not oxygen equals 194.8g. The mass of oxygen is 230g - 194.8g = 35.2g of oxygen. Mass percent of oxygen = 35.2g O/230g x 100 = 15% O
Electrons, muons, and taus having negative charge and a distinct mass each .
A fire wall protects a computer incoming data packets. A reverse firewall prevents the computer or more properly a network from sending out mass data packets when it is under control from an outside source.
You must first convert the mass of each reactant into moles of each reactant. Having the same mass does not mean that the amount of each reactant is the same, because each reactant has its own unique molar mass. Refer to the related link below for instructions on determining limiting reactants, also called limiting reagents.
Because most naturally occurring elements are a mixture of isotopes, each having a different atomic mass. These individual isotopic atomic masses must be combined accounting for the amount of each isotope of the element is present to get a weighted average atomic mass.
galaxy.................it having 10 power 55kg mass........
Matter is anything having mass and occupying space (has volume).
The fact of an object having mass has two noticeable effects: inertia, and gravitational attraction. The easiest way to measure mass is probably through its weight. For example, a spring scale technically measures force, but is already calibrated (marked) for mass. A balance scale compares the mass with another mass - but once again, using the weight of each mass.
You add up the mass of the protons, neutrons, and electrons. Protons and Neutrons having an atomic mass of 1, and electrons having an atomic mass of roughly 1/1800.
No, they continue having mass.
Zero.
The outcomes of each of the mass extinctions is that animal and/or bacteria die.