Complete the following statement: Different types of collisions between interacting bodies are categorized on the basis of
a. linear momentum conservation
b. mechanical energy conservation.
c. kinetic energy conservation.
d. the magnitude of the forces
involved

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/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.