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Wewaii [24]
3 years ago
6

How does science restore diversity to areas where human activity has interfered with the natural structure of a habit/ecosystem?

Physics
1 answer:
egoroff_w [7]3 years ago
5 0
For example if there is a fire thanks to the people then follow procedures on the soil that make the soil ready for new plants. It has recently happened in my country.
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Does the atmosphere contain 21% nitrogen in 78% oxygen
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An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases

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A fishbowl has a circular opening with a diameter of 13 cm. The fishbowl sits upright on a table in a magnetic field of 0.00110
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Explanation:

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Does a basketball, baseball, tennis ball, or marble MOST LIKELY have the smallest volume?
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Plzzz someone help me
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1) The object slows down due to kinetic friction.
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One violin creates a sound whose intensity level is 60dB. Find the intensity level of 16 violins, each playing at this intensity
Yanka [14]

Answer:

72.04 dB.

Explanation:

The intensity level of 60dB corresponds to the sound intensity I given by the equation

60dB = 10log(\dfrac{I}{I_0} )

where I_0 = 1*10^{-12}W/m^2

solving for I we get:

6 = log(\dfrac{I}{I_0} )

10^6 =\dfrac{I}{1*10^{-12}}

\boxed{I = 1*10^{-6} W/m^2}

Now, when 16 violins are playing the intensity I becomes

{I = 16(1*10^{-6} W/m^2)

which on the decibel scale gives

dB = 10log(\dfrac{16*10^{-6}}{1*10^{-12}} )

dB = 72.04\: dB.

Thus, playing 16 violins together gives the intensity level of 72 dB.

8 0
3 years ago
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