Related Items   from Encarta  
Mass (physics)
see also Biomass
atoms and atomic theory
attributes of mass
celestial bodies — Earth
celestial bodies — Moon
celestial bodies — planets
celestial bodies — stars
celestial bodies — Sun
mass spectrometer (diagram)
Newton’s work
of cosmic-ray particles
pictures and illustrations
quotation
role in acceleration
table of astronomical constants
table of densities of some common substances
table of physical constants
units of measure
Acceleration (velocity)
Acceleration (velocity), in physics, the rate of change of velocity over time. An accelerating object is speeding up, slowing down, or changing the...
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