A car starts from rest at a stop sign. It accelerates at 4.0 m/s^2 for 6 s, coasts for 2.0 s, and then slows down at a rate of 3.0 m/s^2 for the next stop sign How far apart are the stop signs?

the independent variable, or the one that is intentionally manipulated is the speed.

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.

k2s for potassium sulphide