A 25-Kg Ball and a 5

question 12

Multiple Choice

A 2.5-kg ball and a 5.0-kg ball have an elastic collision. Before the collision, the 2.5-kg ball was at rest and the other ball had a speed of 3.5 m/s. What is the kinetic energy of the 2.5-kg ball after the collision?

• A)1.7 J
• B)3.4 J
• C)8.1 J
• D)14 J
• E)27 J

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Definitions:

Communication

The act of conveying meanings from one entity or group to another through the use of mutually understood signs, symbols, and semiotic rules.

Breeding Territory

An area defended by an animal or group of animals against others of the same species for the purposes of mating and rearing offspring.

Male Elks

Adult male specimens of the species Cervus canadensis, known for their large antlers, which they shed and regrow each year.

Waggle Dance

A remarkable behavior displayed by honeybees to communicate the location of food sources to other members of their hive.