Assertion: gravity's mass | /r/HasProperty | measured
Facets:
Source sentences:
text: Calculations based on its mean radius (1737 km), mass (7.3477 x 10²² kg), and density (3.3464 g/cm³), and the missions conducted by the Apollo astronauts, the surface gravity on the Moon has been measured to be 1.62 m/s2 , or 0.1654
text: Mass is a measure of how much material is in an object, but weight is a measure of the gravitational force exerted on that material in a gravitational field; thus, mass and weight are proportional to each other, with the acceleration due to gravity as the proportionality constant.
text: Calculations based on its mean radius (1737 km), mass (7.3477 x 1022 kg), and density (3.3464 g/cm3), and the missions conducted by the Apollo astronauts, the surface gravity on the Moon has been measured to be 1.62 m/s2 , or 0.1654