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Zepler [3.9K]
2 years ago
9

what can be done not to let anyone of the country be hungry and clothless discuss in groups and present your findings in the cla

ss​
Physics
1 answer:
Salsk061 [2.6K]2 years ago
8 0

...get food to people in need when they need it...

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The earplug can reduce the sound level to about 18 decibels (dB). What percentage reduction is this intensity?
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Two +1 C charges are separated by 30000 m, what is the magnitude of<br> the force?
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Answer:

<em>The magnitude of the force is 10 N</em>

Explanation:

<u>Coulomb's Law</u>

The electrostatic force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between the two objects.

Written as a formula:

\displaystyle F=k\frac{q_1q_2}{d^2}

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q1, q2 = the objects' charge

d= The distance between the objects

We have two identical charges of q1=q2=1 c separated by d=30000 m, thus the magnitude of the force is:

\displaystyle F=9\cdot 10^9\frac{1*1}{30000^2}

\displaystyle F=9\cdot 10^9\frac{1*1}{30000^2}

F = 10 N

The magnitude of the force is 10 N

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