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vredina [299]
3 years ago
6

Unlike an observational study, an experiment can prove:

Physics
1 answer:
Zinaida [17]3 years ago
3 0

A. Cause and effect.

Explanation:

An experiment can prove cause and effect in a study unlike observational studies.

  • Observational studies is a non-experimental system of investigation.
  • It helps to identify the causes(independent variable) and the effect(dependent variables).
  • In observational studies, the variables cannot be controlled and so it is difficult to prove the cause and effect.
  • An experiment can prove cause and effect because the parameters are tested and can be controlled.

Learn more:

Experiment brainly.com/question/5096428

#learnwithBrainly

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Considering the four electric charges forming a square with magnitude of charge of 2.0 nC on each. :

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Using the given data :

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<u> a) </u><u>magnitude</u><u> of the force on the center charge </u>

Electric force between two point charges = F = \frac{1}{4\pi *E_{o} } \frac{q1q2}{r^2} ----- ( 1 )

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back to equation 1

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