A Curling Stone Slides on Ice with a Speed of 2.0

question 2

Multiple Choice

A curling stone slides on ice with a speed of 2.0 m/s and collides inelastically with an identical, stationary curling stone. After the collision, the first stone is deflected by a counterclockwise angle of 28° from its original direction of travel, and the second stone moves in a direction that makes a 42° clockwise angle with the original direction of travel of the first stone. What fraction of the initial energy is lost in this collision?

• A) 0.12
• B) 0.24
• C) 0.36
• D) 0.48
• E) 0.64

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Definitions:

Resolution Phase

The fourth phase of the sexual response cycle, during which the body gradually returns to its pre-aroused state.

Hypothalamus

A region of the brain responsible for the production of many of the body's essential hormones, thereby regulating temperature, hunger, thirst, fatigue, sleep, and circadian rhythms.

Blood Sugar

The concentration of glucose in the blood, which is a primary source of energy for the body's cells.

Hunger Pangs

Sensations of discomfort or weakness caused by the need for food.