Formula derivations: Elastic: Based on the quantities you know are conserved in such collisions, derive the formulas for the final velocity of the carts in elastic collisions, (1) and (2) . Inelastic: Based on what you know of totally inelastic collisions, derive the formula for the final velocity of the carts in inelastic collisions, (3) .

there are no correct statementd on the list of choices you provided.

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.

the answer to this is proletariats.

hope this : )