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Inessa [10]
3 years ago
13

Which visible quality of smoke shows that it contains a lot of gas influencing the other particles?

Physics
2 answers:
Goryan [66]3 years ago
6 0
Its D because i know that smoke does change very easily and its particles that dissolves in air which was infuenced by the gas. hope this helps man ;)
I am Lyosha [343]3 years ago
6 0

Answer: Option (B) is the correct answer.

Explanation:

Gases are defined as a state of matter in which molecules are far apart from each other due to more kinetic energy.

Hence, gases diffuse at a high rate and this is visible as we feel the odor.

Whereas gas molecules move readily and easily from one place to another. So like liquids, gases also acquire the shape of a container. But this change in volume is not visible in nature.

Therefore, we can conclude that smoke usually has an unpleasant smell is a visible quality of smoke shows that it contains a lot of gas influencing the other particles.

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How much force is required to move a electron through an electric field with strength of 1.375 x 10^19 N/C?
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Answer:

The magnitude of the force required to move the electron through the given field is 2.203 N

Explanation:

Given;

The field strength of the electron, E = 1.375  x 10¹⁹ N/C

charge of electron, q = 1.602 x 10⁻¹⁹ C

The magnitude of the force required to move the electron through the given field is calculated as follows;

F = Eq

F = (1.375  x 10¹⁹ N/C) (1.602 x 10⁻¹⁹ C)

F = 2.203 N

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Answer:

time=4s

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Applying logarithm on both sides,

⇒log(\frac{1}{2})=\frac{-2}{\frac{L}{R}}

⇒log(2)=\frac{2}{\frac{L}{R}}

⇒\frac{L}{R}=\frac{2}{log2}

Now substitute i(t)=\frac{3}{4}imax=\frac{3E}{4R}

⇒\frac{3E}{4R}=\frac{E}{R}(1-e^\frac{-t}{\frac{L}{R}})

⇒\frac{3}{4}=1-e^\frac{-t}{\frac{L}{R}}

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Applying logarithm on both sides,

⇒log(\frac{1}{4})=\frac{-t}{\frac{L}{R}}

⇒log(4)=\frac{t}{\frac{L}{R}}

⇒t=log4\frac{L}{R}

now subs. \frac{L}{R}=\frac{2}{log2}

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also log4=log2^{2}=2log2

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