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Alina [70]
3 years ago
5

Can u anser 5,6 on the picture

Physics
1 answer:
beks73 [17]3 years ago
8 0

Answer: Number 6 is Periods

Explanation:

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A fire engine is moving south at 35 m/s while blowing its siren at a frequency of 400 Hz.
vodomira [7]

To solve this problem we will apply the concepts related to the Doppler effect. The Doppler effect is the change in the perceived frequency of any wave movement when the emitter, or focus of waves, and the receiver, or observer, move relative to each other. Mathematically it can be described as

f_d= f_s \frac{(v+v_d)}{(v-v_s)}

Here,

f_d=frequency received by detector

f_s=frequency of wave emitted by source

v_d=velocity of detector

v_s=velocity of source

v=velocity of sound wave

Replacing we have that,

f_d = 400(\frac{(343+18)}{(343-35)})

f_d=422 Hz

Therefore the frequencty that will hear the passengers is 422Hz

8 0
3 years ago
How many moles of MgCl2 are there in 315 g of the compound? mol
jeka94
315g/95gmol-1
3.315 moles of MgCl2
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3 years ago
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Take a look at the weather map. The front seen there causes short periods of storms and heavy rains. What type of front is this?
erastova [34]
I am pretty sure it is a cold front.
5 0
3 years ago
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To start the analysis of this circuit you must write energy conservation (loop) equations. Each equation must involve a round-tr
REY [17]

Answer:

Explanation:

Electric field talks about a region around a charged particle or object within which a force would be exerted on other charged particles or objects. to find the electric field inside the bulb we will apply the electric filed formula.

Please kindly check attachment for step by step explaination.

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A closed pipe creates a
lina2011 [118]

Answer:

375 hz

Explanation:

Trust me

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