2 years ago

When it rises, air has more weight above it, and the higher pressure allows the air to expand.A.TrueB.False

Physics

1 answer:

vaieri [72.5K]2 years ago

4 0

Answer:

False

Explanation:

There is less pressure higher in the atmosphere, which means that air will expand, and thus cool

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Answer:

B) 12 m

Explanation:

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A single point charge is placed at the center of an imaginary cube that has 10 cm long edges. The electric flux out of one of th

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Answer:

Explanation:

<u>Given:</u>

Length of each side of the cube, $L=10\ cm$

The Elecric flux through one of the side of the cube is, $\phi =-1 kNm^2/C.$

The net flux through a closed surface is defined as the total charge that lie inside the closed surface divided by $\epsilon_0$

Since Flux is a scalar quantity. It can added to get total flux through the surface.

$\phi_{total}=\dfrac{Q_{in}}{\epsilon_0}\\6\times {-1}\times 10^3=\dfrac{Q_{in}}{\epsilon_0}\\\\Q_{in}=-6}\times 10^3\epsilon_0\\Q_{in}=-6}\times 10^3\times8.85\times 10^{-12}\\Q_{in}=-53.1\times10^{-9}\ C$

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A substance changes from a solid to a liquid at its _____.

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I would say D) melting point.

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Answer:

false

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