A Track Is Built Whose Height as a Function of Horizontal

question 11

Multiple Choice

A track is built whose height as a function of horizontal position x is given by (h and x,both in meters) .If a marble is placed on this track,find the position where it will be in a stable equilibrium.

• A)0.29 m
• B)-0.29 m
• C)0.54 m
• D)-0.54 m
• E)1.3 m

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Definitions:

Salty Receptors

Taste receptors on the tongue that detect the presence of salt, one of the basic tastes.

Dark Adaptation

The process by which the eyes increase their sensitivity to low levels of light, enabling vision in dim conditions.

Sensory Threshold

The minimum level of intensity at which a stimulus can be detected by the senses.

Rods

Photoreceptor cells in the retina of the eye that are responsible for vision at low light levels.