The Top of a Rubber Bushing Designed to Absorb Vibrations

question 20

Multiple Choice

The top of a rubber bushing designed to absorb vibrations in an automobile is the surface of revolution generated by revolving the curve in the yz-plane about the z-axis. The bushing has a hole of 4 centimeters in diameter through its center and parallel to the axis of revolution. All measurements are in centimeters and the bushing is set on the xy-plane. Find the volume of the rubber bushing. Round your answer to two decimal places.

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Definitions:

Cognitive Behavioral Therapies

A variety of psychotherapeutic approaches that aim to solve problems by changing dysfunctional emotions, behaviors, and thoughts.

ADHD

Attention Deficit Hyperactivity Disorder, a neurodevelopmental disorder characterized by patterns of behavior that include inattention, hyperactivity, and impulsivity.

Dyslexia

A learning disorder characterized by difficulties with accurate and/or fluent word recognition, poor spelling, and decoding abilities.

Genetic Component

The part of a trait, behavior, or condition that is influenced by genes inherited from one's parents, as opposed to environmental factors.