A Wheel Starting from Rest Has a Constant Angular Acceleration

question 55

Multiple Choice

A wheel starting from rest has a constant angular acceleration.After 3.0 s the angular velocity of the wheel is 7.5 rad/s.This same angular acceleration continues for a further 7.0 s after which it drops suddenly to zero.In the first 20.0 s how many revolutions does the wheel make?

• A)20
• B)40
• C)60
• D)80
• E)100

Acknowledge the role and effect of media and video games on behavior and learning.

Distinguish between primary and secondary reinforcers.

Describe mechanisms of learning recovery phenomena, such as extinction, spontaneous recovery, and conditioning theories.

Differentiate between positive and negative reinforcement, and understand how they influence behavior.

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Definitions:

Pediculosis Capitis

Infestation of the scalp by head lice, a common condition that causes itching and discomfort.

Medicated Shampoo

A type of shampoo containing therapeutic agents designed to treat scalp and hair conditions or infections.

Permethrin

A synthetic chemical used as an insecticide, acaricide, and insect repellent, often applied to clothing or bedding to kill or deter insects.

Lindane

A chemical substance previously used as an insecticide and as a medication to treat lice and scabies, now largely restricted due to safety concerns.