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valkas [14]
3 years ago
8

Positively charged ions are surrounded by freely moving electrons in

Physics
1 answer:
ASHA 777 [7]3 years ago
3 0
I believe the answer would be valence shells

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What is the resistance of a circuit with a voltage of 10 V and current of 5A is?
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Resistance = (voltage) / (Current)

Resistance = (10 V) / (5 A)

Resistance = 2 ohms.

5 0
3 years ago
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two identical-looking, large, round balls are placed in front of you. one is filled with feathers and the other is filled with s
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If you apply a little bit of force, one will move easier than the other since it is lighter.
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A real image can be obtained with:
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convex lens and a concave mirror

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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

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