A Fire Hose Is Turned on the Door of a Burning

question 69

Multiple Choice

A fire hose is turned on the door of a burning building in order to knock the door down.This requires a force of 1000 N.If the hose delivers 40 kg of water per second,what is the minimum velocity of the stream needed to knock down the door,assuming the water doesn't bounce back?

• A)15 m/s
• B)20 m/s
• C)25 m/s
• D)30 m/s

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Definitions:

Drug Abstinence

Refers to the deliberate avoidance of drug use or the cessation of consuming substances after a period of regular intake.

Operant Chamber

A laboratory apparatus used to study animal behavior in a controlled environment, particularly for experiments in operant conditioning.

Extinction

Extinction in psychological terms refers to the gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus.

Contingency Management

A behavior modification technique that involves varying reinforcement conditions to change behavior.