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2 years ago

if a source of sound waves is rabidly approaching a person the sound heard by the person appears to have?

Physics

2 answers:

Romashka-Z-Leto [24]2 years ago

8 0

Answer:

have a frequency. higher than the frequency actually produced by the source.

Explanation:

solong [7]2 years ago

7 0

Answer:

If a source of sound waves is rapidly approaching a person, the sound heard by the person appears to have - a pitch lower than the original pitch.

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A reconnaissance plane flies 605 km away from

kolezko [41]

Answer:

$v_{avg} =$ 355 m/s

Explanation:

Distance = 605 km

Initial speed = $v_{i}$ = 284 m/s

Final velocity = $v_{f}$ = 426 m/s

Average speed = ?

There is two method two find average speed. In first method, using 3rd equation of motion, we find acceleration.

$2as = v_{f}^{2}+v_{i}^{2}$

Then using first equation of motion, we find time

$v_{f} = v_{i}+at$

Then using the formula of average velocity, we find average velocity

$v_{avg}=\frac{total-distance}{total-time}$

Second method is very simple

$v_{avg}=\frac{v_{f}+v_{i} }{2}$

$v_{avg}=\frac{426+284}{2}$

$v_{avg} =$ 355 m/s

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3 years ago

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Answer:

B convection MERRY CHRISTMAS

Explanation:

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2 years ago

Determine the acceleration due to gravity?

MissTica

That's a weird graph, but judging from the units the acceleration is the slope of the graph.

a = (0.8 - 0.3)/(0.16 - 0.055) = 4.76 m/s²

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