In 20 Minutes, Lucy Ran 2

question 19

Multiple Choice

In 20 minutes, Lucy ran 2.40 km on a treadmill facing due east. Relative to the gym, what were her displacement and average velocity during this time interval?

• A)0; 0
• B)0; 2.00 m/s
• C)2.40 km, east; 0
• D)2.40 km, east; 2.00 m/s, east
• E)2.40 km, west; 2.00 m/s, west

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Definitions:

Taste Buds

Sensory organs located on the tongue and in the oral cavity that are responsible for perceiving taste.

Absorbed

The process by which substances are taken up by a tissue, such as the absorption of nutrients by the digestive tract.

Lingual Frenulum

A small fold of mucous membrane that extends from the floor of the mouth to the midline of the underside of the tongue.

Buccinator Muscle

A facial muscle that acts to press the cheeks against the teeth and is used in actions such as blowing and chewing.