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german
3 years ago
10

Can someone please help me no one ever responds to my question and I need the correct answer. I believe the answer is C but i'm

not sure
What type of evidence could marine biologists use to convince policy makers to protect a specific coral reef?

Past data to show that the health of the reef was increasing over time
Past data to show that the health of the reef was remaining stable over time
Collected data on the coral reef to show that the health of the reef was declining over time
Collected data on reefs all around the world to show that the health of the reef was increasing over time
Physics
2 answers:
pav-90 [236]3 years ago
5 0
The answer is C because in order to convince others to protect something, you must have evidence why it needs protection.
GarryVolchara [31]3 years ago
4 0
Yes you were correct the answer was c


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What is the period of a wave that has a frequency of 300 hz?
Butoxors [25]

Answer:

T = 0.003 s

(Period is written as T)

Explanation:

Period = time it takes for one wave to pass (measured in seconds)

frequency = number of cycles that occur in 1 second

(measured in Hz / hertz / 1 second)

Period : T

frequency : f

So, if we know that the frequency of a wave is 300 Hz, we can find the period of the wave from the relation between frequency and period

T =  \frac{1}{f}    f = \frac{1}{T}

to find the period (T) of this wave, we need to plug in the frequency (f) of 300

T = \frac{1}{300}

T = 0.00333333333

So, the period of a wave that has a frequency of 300 Hz is 0.003 s

[the period/T of this wave is 0.003 s]

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2 years ago
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V125BC [204]

Answer:

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3 years ago
The intensity of a sound wave at a fixed distance from a speaker vibrating at 1.00 kHz is 0.600 W/m2.
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3 years ago
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worty [1.4K]

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sin θ2 = 1.80 * .407 = .734

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3 0
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