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Kisachek [45]
3 years ago
10

What happens when you combine purple and yellow?

Physics
1 answer:
Nana76 [90]3 years ago
3 0
Umm You make brown lol
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You are approaching a police car at 68. 1 mph and the police car is approaching you at 94. 8 mph. Assume that the speed of sound
Veronika [31]

We will hear the sound of siren of frequency 1553.4606 Hz.

<h3>What is Doppler Effect?</h3>

The apparent change in wave frequency brought on by the movement of a wave source is known as the Doppler effect. When the wave source is coming closer and when it is moving away, the perceived frequency changes. The Doppler effect explains why we hear a passing siren's sound changing in pitch.

according to Dopplers Effect,

f'=[\frac{v + v_{0} }{v - v_{s} } ]f

f'= [\frac{700+68.1}{700-94.8} ]* 1224

f'= 1553.4606 Hz

the frequency would be 1553.4606 Hz.

to learn more about Doppler Effect go to - brainly.com/question/9165991

#SPJ4

7 0
2 years ago
How is the energy of the wave affected if the amplitude of the wave increases from 2 meters to 4
Alex777 [14]

Answer:

Energy of wave will increase as the energy of wave is related to the amplitude of wave

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In which situation is the speed of the car constant while its velocity is changing?
Sati [7]

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B, the car travels around a circular track at 30 m.

Explanation:

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2 years ago
What is the value of the resulting force and its direction acting on the following block: * 6N, left 1N, right 4N, left 1N, left
kherson [118]
1 N to the right as shown on photo

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Draw in force and velocity vectors at the four marked positions the object below is moving counterclockwise in uniform circular
Ilia_Sergeevich [38]
This is what it would look like—
Angular velocity = w
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Centripetal acceleration = ac

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3 years ago
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