A Jet Aircraft, in Level Flight at Constant Speed, Is

question 6

Multiple Choice

A jet aircraft, in level flight at constant speed, is observed directly overhead. A sonic boom is heard 7.0 s later, at which time the line of sight to the aircraft forms a 56° angle with respect to the horizontal. The speed of sound is 325 m/s. What is the Mach number (the ratio of the speed of the jet to the speed of sound) for the aircraft?

• A) 1.2
• B) 1.8
• C) 1.9
• D) 2.1
• E) 2.2

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Definitions:

Negatively Worded

Refers to the use of negative phrasing in questions or statements, which can sometimes lead to confusion or misinterpretation in surveys or tests.

Yea-Saying

A response bias in surveys or questionnaires where participants tend to agree with statements regardless of their content, often to be agreeable or due to misunderstanding.

Nay-Saying

Nay-Saying involves consistently responding negatively or skeptically, often in the context of surveys or questionnaires.

Double-Barreled

Pertaining to questions or statements that address two or more issues at once, often leading to confusion or difficulty in answering.