3 years ago

Carbon dioxide is added to the atmosphere:

Physics

1 answer:

dimulka [17.4K]3 years ago

8 0

Carbon dioxide is added to the atmosphere b) from burning the fossil fuels

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What personal experiences have you had with watching a substance change from one phase to another?

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Watching ice melt on a hot surface.

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3 years ago

A bullet is fired straight up from a gun with a

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<span>v(4 seconds)= 300 m/s - 9.8 (m/s^2)(4s) = 260.8 m/s </span>, hope this helps:)

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3 years ago

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A closed system’s internal energy changes by 178 J as a result of being heated with 658 J of energy. The energy used to do work

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Answer:

480J

Explanation:

Using the formula:

Delta U = Q - W

Q:Heat (J)

Delta U: Changes in internal Energy (J)

W:Work (J)

We can plug in the give numbers, Q and W.

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3 years ago

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Answer:

1.2cm

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V=(2ev/m)^1/2

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Radius of resulting path= MV/qB

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3 years ago

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A wire of radius R has a current I uniformly distributed across its cross-sectional area. Ampere's law is used with a concentric

MrMuchimi

Answer:

Please refer to the figure.

Explanation:

The crucial point here is to calculate the enclosed current. If the current I is flowing through the whole cross-sectional area of the wire, the current density is

$J = \frac{I}{\pi R^2}$

The current density is constant for different parts of the wire. This idea is similar to that of the density of a glass of water is equal to the density of a whole bucket of water.

So,

$J = \frac{I}{\pi R^2} = \frac{I_{enc}}{\pi r^2}\\I_{enc} = \frac{Ir^2}{R^2}$