In a Shadow Play, the Actors Are Behind a Translucent

question 57

Multiple Choice

In a shadow play, the actors are behind a translucent screen and the audience only sees their two-dimensional shadows on the screen. Assume that the lighting is such that the dimensions of objects are undistorted. In a certain play, a witch is stirring a caldron by moving a spoon, held vertically, in a horizontal circle with a radius of 20 cm, making one revolution every 2.4 s. What is the maximum acceleration of the spoon seen by the audience?

• A)0.35 m/s²
• B)1.1 m/s²
• C)1.4 m/s²
• D)0.48 m/s²
• E)0.52 m/s²

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Definitions:

Preparedness

The concept in psychology that suggests organisms are innately predisposed to form certain associations or learn particular kinds of behaviors.

Stimuli

External or internal events or occurrences that elicite a response from the sensory system of an organism.

Phobia

An extreme or irrational fear or aversion to something.

Serotonin Synapses

The junctions between neurons where serotonin, a neurotransmitter important for mood regulation, is transmitted from one neuron to another.