Social Studies, 30.08.2019 08:30, angelicar1160
The observed frequency increases when the source and observer approach each other and decreases when they move apart. this is called the what?
1) emission spectrum
2) doppler effect
3) wavelength
Answers: 1
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Americans often refer to a country that is not the united states as a
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Which scholars explained the roles of the public and private sectors by comparing it to maneuvering a boat?
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The federal reserve is responsible for overseeing all a. income tax refunds b. changes in tax policies c. government spending d. depository institutions
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