3 years ago

What affects the movement of air masses along the earth surface

Physics

2 answers:

abruzzese [7]3 years ago

7 0

The differences in air pressure and the Earth's rotation.

Lilit [14]3 years ago

5 0

Heat from the sun is also affects the movement of air on the surface

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The wire now has less (the half resistance) than before.

Explanation:

The resistance in a wire is calculated as:

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Were:

R is resistance

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l is the length of the material

s is the area of the transversal wire, in the case of wire will be circular area ( $s=\pi r^{2}$ ).

So if the lenght and radius are doubled, the equation goes as follows:

$R=\alpha \frac{l}{\pi r^{2} } =\alpha \frac{2l}{\pi {(2r)}^{2} } =\alpha \frac{2l}{\pi 4 {r}^{2} }=\frac{1}{2} \alpha \frac{l}{\pi r^{2} }$

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3 years ago

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