An object has an acceleration of 6.0 m/s/s. If the mass of this object were reduced to one-third the original value (with no
change in its net force), then its new acceleration would be
m/s/s.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.