The emphasis in the traditional mass on the reiteration…
Also, due to our focus, ‘mass expressions’ henceforth refers only to concrete mass expressions, except where indicated.
The relative atomic mass of an element shows its mass compared with the mass of atoms of other elements.
“The Second Wave Society is industrial and based on mass production, mass distribution, mass consumption, mass education, mass media, mass recreation and entertainment,” Toffler said in a 1999 interview.
This mass density is about 0.001 solar mass per cubic light-year.
When a moving mass strikes another mass, the total momentum before and after the collision is exactly the same.
These values tell you that a magnesium atom has twice the mass of a carbon atom, and 24 times more mass than a hydrogen atom.
The relative atomic mass of an element , symbol Ar, is the relative mass of its atoms compared to the mass of a carbon-12 atom.
It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an atomic mass of 12 units.
If a body split into pieces, the mass divides with the pieces, so that the sum of the masses of the individual pieces is equal to the original mass.
In a spiral galaxy the interstellar medium makes up 3 to 5 percent of the galaxy’s mass, but within a spiral arm its mass fraction increases to about 20 percent.
In terms of mass, a mole (mol) is the relative atomic mass (Ar) of an element in grams, or the relative formula mass (Mr) in grams if it's a compound .
The numerical difference between the actual measured mass of an isotope and A is called either the mass excess or the mass defect (symbol Δ; see table).
He maintains that mass and energy are different properties but that genuine conversions of mass and energy are at least permitted by mass-energy equivalence.
However, except in nuclear reactions, the conversion of rest mass into other forms of mass-energy is so small that, to a high degree of precision, rest mass may be thought of as conserved.
So a full-blown semantics, covering both mass nouns and count nouns, should be able to validate syllogisms like the following, which involve mass and count uses of a mass noun: This is gold.
Mass spectrometry, also called mass spectroscopy, analytic technique by which chemical substances are identified by the sorting of gaseous ions in electric and magnetic fields according to their mass-to-charge ratios.
Thus, from the perspective of either inertial mass or gravitational mass, according to the principle of mass conservation, different measurements of the mass of an object taken under various circumstances should always be the same.
This claim by itself suggests that there can be no such thing as a physical process by which mass is converted into energy, for as Lange asks “in what sense can mass be converted into energy when mass and energy are not on a par in terms of their reality?”
In other words, the moment of inertia about an axis that does not pass through the centre of mass is equal to the moment of inertia for rotation about an axis through the centre of mass (Ic) plus a contribution that acts as if the mass were concentrated at the centre of mass, which then rotates about the axis of rotation.
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In other words the moment of inertia about an axis that does not pass through the centre of mass is equal to the moment of inertia for rotation about an axis through the centre of mass Ic plus a contribution that acts as if the mass were concentrated at the centre of mass which then rotates about the axis of rotation