3 years ago

How important are volcanoes in adding carbon dioxide to the atmosphere

Physics

1 answer:

leonid [27]3 years ago

5 0

Answer:

Important enough for someone to ask you to do it.

Explanation:

If someone asked you this question, then it must be important and stuff. This is proven by scientific stuff that no one cares about.

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The core muscles stabilize and protect the spine.

Aleksandr [31]

True. yes the core muscles stabilize and protect the spine.

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A pile driver lifts a 450 kg weight and then lets it fall onto the end of a steel pipe that needs to be driven into the ground.

nikitadnepr [17]

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<span>m g h = f d </span>

<span>450 * g * 1.5 = f * .45</span>

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True or false. in science, a hypothesis must be true?

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3 years ago

An inductor has inductance of 0.260 H and carries a current that is decreasing at a uniform rate of 18.0 mA/s.

nignag [31]

Answer:

The self-induced emf in this inductor is 4.68 mV.

Explanation:

The emf in the inductor is given by:

$\epsilon = -L\frac{dI}{dt}$

Where:

dI/dt: is the decreasing current's rate change = -18.0 mA/s (the minus sign is because the current is decreasing)

L: is the inductance = 0.260 H

So, the emf is:

$\epsilon = -L\frac{dI}{dt} = -0.260 H*(-18.0 \cdot 10^{-3} A/s) = 4.68 \cdot 10^{-3} V$

Therefore, the self-induced emf in this inductor is 4.68 mV.

I hope it helps you!

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