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tino4ka555 [31]
3 years ago
14

What is the average speed if an object travels 200 km in 5 hours

Physics
1 answer:
melamori03 [73]3 years ago
8 0

Answer:

40km per hour

Explanation:

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When you double the distance between a pair of charged particles what happens to the force between them?
Volgvan

Answer:

Force between the two charges becomes one fourth of the initial force.

Explanation:

The electrostatic force acting between any two charges is given as,

F = k\frac{q_{1}q_{2}}{r^{2}}

Here,

F = force

k = Coulomb's constant

q_{1} = magnitude of charge of the first particle

q_{2} = magnitude of charge of the second particle

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From the above relation,

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Thus,

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\frac{F_{1}}{F_{2}} = \left ( \frac{2r}{r} \right )^{2}

\Rightarrow \ F_{2} = \frac{1}{4}F_{4}.

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Explanation:

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