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Lubov Fominskaja [6]
2 years ago
15

If the velocity of gas molecules is doubled the its kinetic energy will be

Physics
1 answer:
Stolb23 [73]2 years ago
3 0

Answer: Quadrupled

Explanation:

Because when it’s doubled they are going to make another pair so 2+2=4

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A 850-kg sports car accelerates from rest to 95 km/h in 6.8 s .
swat32

From the calculations, the power expended is 43650 W.

<h3>What is the power expended?</h3>

Now we can find the acceleration from;

v = u + at

u = 0 m/s

v =  95 km/h or 26.4 m/s

t =  6.8 s

a = ?

Now

v = at

a = v/t

a = 26.4 m/s/ 6.8 s

a = 3.88 m/s^2

Force = ma = 850-kg * 3.88 m/s^2 = 3298 N

The distance covered is obtained from;

v^2 = u^2 + 2as

v^2 = 2as

s = v^2/2a

s = (26.4)^2/2 * 3.88

s = 696.96/7.76

s = 90 m

Now;

Work = Fs

Work =  3298 N * 90 m = 296820 J

Power =  296820 J/ 6.8 s

= 43650 W

Learn more about power expended:brainly.com/question/11579192

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2 years ago
If a sound wave traveled from a solid to a liquid its speed would:.
JulijaS [17]

Answer:

increase

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Is it easier to open a bottle cap by gripping it with a towel. Why ?
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Yes

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This is an object's change in motion per unit time in a specified direction.
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Answer:

Velocity

Explanation:

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Gas liquids will both expand to fll their containers true or false
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It Is False. Liquid will not expand to fill it's container, while gas will. 

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