A 350 Kg Block Is Pulled Along a Moving Conveyor Belt

question 47

Multiple Choice

A 3.50 kg block is pulled along a moving conveyor belt at a constant speed of 0.500 m/s relative to a stationary observer while the belt moves at a constant speed of 0.200 m/s in the same direction. If the coefficient of kinetic friction is 0.400, the magnitude of the mechanical energy dissipated, in J, caused by the force of friction on the block in 8.00 s is

• A) 5.6.
• B) 22.0.
• C) 32.9.
• D) 54.8.
• E) 76.8.

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Definitions:

Differential Reinforcement Schedule

A schedule of reinforcement in which a specific number of behaviors must occur within a specified time in order for reinforcement to occur

Variable-Ratio Schedule

A reinforcement schedule in which a response is rewarded after an unpredictable number of responses, leading to a high and steady rate of responding because the exact number varies.

Fixed-Ratio Schedule

A type of reinforcement schedule where a response is reinforced only after a specified number of responses, leading to a high and steady rate of response.

Fixed-interval Schedule

A reinforcement schedule that provides reinforcement for the first response made after a fixed duration of time has passed.