Two types of measurements, " absolute mass " and " relative mass ", are used to compare groups of documents.
12.
Because of its low relative mass, landing on the comet involved certain technical considerations to keep " Philae " anchored.
13.
Our article says that they are, but I would guess that's just an assumption due to their relative masses and distance.
14.
:It would do very little, both because of the low relative mass of the asteroid and because of the low density.
15.
Assuming a relatively inelastic collision, you only have to measure the resulting speeds to know their relative masses to reasonable precision.
16.
This low relative mass might be caused by a core that is of low mass or that is not present at all.
17.
The orbits of binary stars can be used to measure the relative masses of each companion, or the total mass of the system.
18.
Isotopic rate changes are most pronounced when the relative mass change is greatest, since the effect is related to vibrational frequencies of the affected bonds.
19.
To convert these relative masses to Earth-based units such as the kilogram, it is necessary to know the value of the Newtonian gravitational constant, " G ".
20.
You can travel at 99 % the speed of light, and your relative mass will be immense, but your rest mass is the same as it was at rest.
