A 400-Kg Mass and a 9

question 76

Multiple Choice

A 4.00-kg mass and a 9.00-kg mass are being held at rest against a compressed spring on a frictionless surface. When the masses are released, the 4.00-kg mass moves to the east with a speed of 2.00 m/s. What is the velocity of the 9.00-kg mass after the masses are released?

• A)2.00 m/s west
• B)0.888 m/s west
• C)0.500 m/s east
• D)4.50 m/s west
• E)0.500 m/s west

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Definitions:

Unwanted Behaviors

Actions or reactions that are considered undesirable or inappropriate within a given context or societal norms.

Anxiety-Triggering Situations

Scenarios or stimuli that induce a state of fear or apprehension, potentially leading to an anxiety response in individuals sensitive to such triggers.

Operant Conditioning

A technique in pedagogy where the escalation or de-escalation of behavior is influenced by reward or reprimand.

Behavior Therapies

A type of psychotherapy that focuses on changing unhelpful behaviors through conditioning and other learning principles.