Marc Attaches a Falling 250-Kg Object with a Rope Through

question 17

Multiple Choice

Marc attaches a falling 250-kg object with a rope through a pulley to a paddle wheel shaft.He places the system in a well-insulated tank holding 12 kg of water.When the object falls,it causes the paddle wheel to rotate and churn the water.If the object falls a vertical distance of 100 m at constant speed,what is the temperature change of the water? (1 kcal = 4186 J,the specific heat of water is 4186 J/kg · °C,and g = 9.8 m/s²)

• A) 19,600°C
• B) 4700°C
• C) 4.9°C
• D) 2.3°C

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Definitions:

Overgeneralization

A cognitive distortion where an individual concludes a general rule or pattern from a single event or a small number of events.

Free Association

A psychoanalytic technique where the patient speaks freely about their thoughts, memories, and feelings, revealing the unconscious processes.

Conditioning

A learning process in which an organism's behavior becomes modified as a result of its experience with an external stimulus.

Group Therapy

A form of psychotherapy involving one or more therapists working with several people at the same time.