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3 years ago

According to Coulomb's law, the force of attraction or repulsion between two charges is

Physics

2 answers:

Vikki [24]3 years ago

7 0

A
It’s directly related to the magnitude of the charges

Maru [420]3 years ago

6 0

Answer:

B is the answer

Explanation:

thank you I hope it helps you

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Heat is added to an open pan of water at 100.0°c, vaporizing the water. the expanding steam that results does 43.0 kj of work, a

vampirchik [111]

Heat = change in internal energy + Work done The internal energy of a system = heat added and mechanical work done by the system, i.e. U = Q + W rearranging the formula above, will give us: Q = deltaU + W
Q = U - W = 604 kJ - 43.0 kJ = 561,000 J would be the answer.

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3 years ago

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Which is most likely the length of a student’s textbook?

UkoKoshka [18]

For this case, what we must do is to rewrite these measurements in the same unit in order to compare them.

By writing the measurements in meters we have:

$30 mm = (30) * (\frac{1}{1000}) = 0.030 m$

$30 cm = (30) * (\frac{1}{100}) = 0.30 m$

$30 dm = (30) * (\frac{1}{10}) = 3 m\\30 Hm = (30) * (100) = 3000 m$

Therefore, physically the correct measure is:

$0.30 m = 30 cm$

Answer:

the length of a student's textbook most likely is:

30 centimeters

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4 years ago

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A current of 4 ampere flows in a wire of resistivity 60 ohm calculate power

Reil [10]

The answer is 240 Volt

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3 years ago

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According to the Universal Law of Gravitation, if the separation between two planets is increased by a factor of 8, how many tim

madam [21]

Answer:

weakens by 64 times

Explanation:

According to universal law of gravitation the force between two bodies is inversely proportional to square of their distance between them that F is inversely proportional to $r^2$

So if we increase the the distance between two planets by 8 times then the the mutual attraction between will be decrease by $8^2$ times

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3 years ago

Why filament lamp is filled with nitrogen and inert gas

wlad13 [49]

Answer:

Bulbs are filled with chemically inactive Nitrogen or Argon gas to prevent the oxidation of tungsten filament used in the bulb. A bulb is filled with an inert gas such as argon or nitrogen slows down the evaporation of the tungsten filament compared to operating it in a vacuum.

Explanation:

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2 years ago

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