Physics & Astronomy
An Introduction to Physical Science Study Set 2
When a Jet Plane Exceeds the Speed of Sound, A(n)
When a jet plane exceeds the speed of sound, a(n) ______________ forms, resulting in a sonic boom.
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If a sound level increases by 30 dB, the intensity increases by a factor of ______________.
An observer moving toward a stationary sound source hears a(n) ______________ in frequency.
As a truck moves away from a person with its horn blowing, the person hears a frequency ______________ than that of the horn.
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