A Jet Plane in Straight Horizontal Flight Passes Over Your $\degree$

question 46

Multiple Choice

A jet plane in straight horizontal flight passes over your head.When it is directly above you, the sound seems to come from a point behind the plane in a direction 30 $\degree$ from the vertical.The speed of the plane is:

• A)the same as the speed of sound
• B)half the speed of sound
• C)three-fifths the speed of sound
• D)0.866 times the speed of sound
• E)twice the speed of sound

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Definitions:

Extrinsic Motivation

A form of motivation driven by external rewards, such as money, grades, or recognition, rather than by inherent interest in the activity itself.

Autonomous Motivation

Self-motivation or intrinsic motivation that occurs when people feel they are in control of their motivation.

Controlled Motivation

Motivation that is externally controlled, such as when one is motivated to obtain a desired consequence or extrinsic reward.

Motivation

The internal and external factors that stimulate desire and energy in people to be continually interested and committed to a job, role, or subject.