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Citrus2011 [14]

3 years ago

8

If the speed at which an object moves through a fluid increases, will the size of the frictional force that acts on it increase,

decrease or stay the same?

1 answer:

Alla [95]3 years ago

5 0

Answer:

increase

Explanation:

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What causes glowsticks to give off light?

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Phenyl oxalate ester is responsible for the luminescence in aglow stick<span>. The reaction with hydrogen peroxide </span>causes<span> the liquid inside a </span><span>glow stick to glow</span>

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Your high beam headlights illuminate the road in front of you for __________ feet. A. 150 B. 450 C. 650

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Answer:

B. 450 feet

Explanation:

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A proton is placed in an electric field of intensity 700 N/C. What are the magnitude and direction of the acceleration of this p

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Answer:

Acceleration of proton will be $a=0.67\times 10^{11}m/sec^2$

Explanation:

We have given a proton is placed in an electric field of intensity of 700 N/C

So electric field E = 700 N/C

Mass of proton $m=1.67\times 10^{-27}kg$

Charge on proton $e=1.6\times 10^{-19}C$

So electric force on the proton $F=qE=1.6\times 10^{-19}\times 700=1.120\times 10^{-16}N$

This force will be equal to force due to acceleration of the proton

According to newton's law force is given by F = ma

So $1.67\times 10^{-27}\times a=1.120\times 10^{-16}$

$a=0.67\times 10^{11}m/sec^2$

So acceleration of proton will be $a=0.67\times 10^{11}m/sec^2$

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Please help !!!!! I’ll give brainliest !

goblinko [34]

I think A but I dont really know

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Explain that a universe is a large collection of billions of galaxies and is expanding continuously?

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