Three Objects Are Connected by Massless Wires Over a Massless

question 73

Multiple Choice

Three objects are connected by massless wires over a massless frictionless pulley as shown in the figure.The tension in the wire connecting the 10.0-kg and 15.0-kg objects is measured to be 133 N.What is the tension in wire A?

• A) 87.5 N
• B) 245 N
• C) 280 N
• D) 333 N
• E) 517 N

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Definitions:

Conditioned Eyeblink

A classical conditioning experiment where a subject learns to blink in response to a conditioned stimulus, typically a tone, that has been associated with an unconditioned stimulus, like a puff of air to the eye.

Hypothalamus

A neural structure lying below (hypo) the thalamus; it directs several maintenance activities (eating, drinking, body temperature), helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward.

Amygdala

A section of the brain's limbic system involved in emotion, particularly fear and pleasure.

Hippocampus

A critical region of the brain involved in memory formation, organization, and retrieval.