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mezya [45]
2 years ago
12

The Doppler Effect is the apparent change in ________ caused by relative motion between the source of the wave and the observer.

Social Studies
2 answers:
neonofarm [45]2 years ago
8 0

The correct answer is frequency

The Doppler effect is characterized by the change in the sound frequency emitted by a source, perceived by an observer when there is relative movement. A typical example of the Doppler effect is the case of an ambulance with the siren on, during the approach or removal of an observer.

Vadim26 [7]2 years ago
3 0

Answer:Pitch is the answer good luck

Explanation:

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What is the current account for each country?
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Answer:

The country that has a trade deficit  is US and the country that has a trade surplus is China.

A country has a trade surplus if the value of export is greater than the value of import.

A country has a trade deficit if the value of export is less than the value of import.

If the US buys goods from China, it is considered import to US and export to China

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$800 + $100 + $200 + $1000 = $2100

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$1000 + $300 + $600 = $1900

Explanation:

hope it helps

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