Cubic meters are a unit of volume, and kilograms are a unit of mass. Cubic meters can only be converted to kilograms if the density of a substance is known. If density is known, then multiplying the number of cubic meters by the density (kg/m^3) derives the number of kilograms.
Know MoreDensity must be measured in kg/m^3 in order to convert the number of cubic meters to kilograms through simple multiplication. A substance with a higher density has more kilograms in a certain number of cubic meters than another substance with a lower density but equal volume.
For example, Engineering Toolbox reports that the density of iron is 7850 kg/m^3. If there are 10 cubic meters of iron, this represents (10 m^3 * 7850 kg/m^3), which equals 78500 kg. Liquid water, on the other hand, has a density of just 1000 kg/m^3 at 4 degrees Celsius. If there are 10 cubic meters of water, this represents a mass of (10 m^3 * 1000 kg/m^3), which equals 10000 kg water, a much smaller mass than that of iron in the same amount of volume.
Learn MoreA mathematical sentence combines two expressions with a comparison operator to create a fact that may be either true or false. Possible comparison operators are "equal," "not equal," "greater than," "less than," "greater than or equal to" and "less than or equal to." Mathematical expressions containing the "equal" sign are considered equations; those containing the "inequality" symbol are considered inequalities.
Full Answer >The number 33 has two square roots, which are approximately equal to 5.74 and minus 5.74. All positive real numbers have two real square roots, one positive and one negative.
Full Answer >The prime factorization of 48 is 2 x 2 x 2 x 2 x 3 or 2 to the 4th power x 3. Prime factorization is also called integer factorization, and sometimes prime decomposition, and is the determination of the set of prime numbers that multiply together in order to become the original number.
Full Answer >A factor rainbow is a way of writing factors for numbers using a series of arcs. It helps students ensure they have all the factors by listing them in consecutive order.
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