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grigory [225]
3 years ago
8

Which of one example of pre-existing marine life?

Physics
2 answers:
Mekhanik [1.2K]3 years ago
7 0
B. a shrimp burrow cause A,C,D is above the sea/ocean
andreev551 [17]3 years ago
6 0

Answer:b

Explanation: it is the only thing in the see than above

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In a pig caller can produce a sound intensity level of 107 dB. How many pig callers would be needed to generate an intensity lev
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Answer:

20 pig callers

Explanation:

Given that:

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To find how many pig callers required to generate an intensity level of 120 dB;

we have:

120 dB - 107 dB = 13 dB

Taking the logarithm function;

10 \ log \bigg(\dfrac{I}{I_o} \bigg) = 13 \ dB

where;

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log \bigg(\dfrac{I}{I_o} \bigg) = 1.3

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3 years ago
Please help! I’ll give brainliest! :)
jeka94

Answer:

C.) Gravity

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