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WINSTONCH [101]
3 years ago
6

Based on the data, which prediction should he expect to occur? A2 repels B1. C2 attracts B2. B1 repels C1. A1 attracts C2.

Physics
1 answer:
VladimirAG [237]3 years ago
6 0
I believe the answer is a1
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The horn on a fire truck sounds at a pitch of 350 hz a. what is the perceived frequency when the fire truck is moving toward you
solong [7]

The perceived frequency when the fire truck is moving toward you and away from you will be 370 Hz and 329.59 Hz respectively.

<h3>What is the Doppler effect?</h3>

A sudden change in the frequency due to the distance between the objects and source is explained by the doppler effect.

As the source and observer travel toward each other, the frequency of sound, light, or other waves increases or decreases.

The perceived frequency when the fire truck is moving toward you;

\rm r' = (\frac{v+v_0}{v}) V \\\\ \rm r' = (\frac{343+20}{343}) 350 \\\\ r' =370.4  \  Hz

The perceived frequency when the fire truck is moving away from you;

\rm r' = (\frac{v-v_0}{v}) V \\\\ \rm r' = (\frac{343-20}{343}) 343 \\\\ r' =329.59  \  Hz

Hence, the perceived frequency when the fire truck in cases 1 and 2 will be 370 Hz and 329.59 Hz.

To learn more about the doppler effect refer to the link;

brainly.com/question/15318474

#SPJ1

5 0
2 years ago
a car travelling 90 km/hr is 100m behind a truck travelling 75 km/hr. Assuming both vehicles moving at constant velocity,calcula
nika2105 [10]

90t - .100 = 75t

90t - 75t = 0.100

15t = 0.100

t = 0.0067

<u>t = 0.0067 hours or 24.12 seconds</u> (.0067 * 60 minutes * 60 seconds)

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3 years ago
What is the distance an object travels and the direction of its motion from starting point?
castortr0y [4]

Answer: Well you didn't give any answers so my guess would be it depends how much force you put into it and where you throw it.

Explanation:

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3 years ago
Every force has both _____ and ______.
Natali5045456 [20]
A.)  All the vector quanties have magnitude(strength) as well as direction. Since force is a vector quantity, it has both strength as well direction. 
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3 years ago
4. The electric force between electric charges is much larger than the
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The electric force is small in comparison because charges are VERY small but the

gravitational force has to do with the mass of the Earth and Moon.

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3 years ago
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