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Một loa phát ra với cường độ âm là 40 (W/m2 ). Mức cường độ âm của loa thuộc phạm vi?
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Một loa phát ra với cường độ âm là 40 (W/m2

). Mức cường độ âm của loa thuộc phạm vi?

User Zhanna
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4.2k points

1 Answer

3 votes

Answer:ew

Step-by-step explanation:

qeeqw

User Zango
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