3 years ago

What does it mean to control variables

1 answer:

3 0

Controlled variables are influences that could affect the outcome of an experiment, and so are purposely controlled so that they do not impact the experimental results.

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Answer:

Explanation:

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distance, r = 911 nm = 911 x 10^-9 m

The Coulomb's force is given by

$F=\frac{Kq_{1}q_{2}}{r^{2}}$

$F=\frac{9\times 10^{9}\times 1.6\times 10^{-19}\times 1.6\times 10^{-19}}{\left (911\times 10^{-9} \right )^2}$

F = 2.78 x 10^-16 N

The force between the electron and the proton is 2.78 x 10^-16 N.

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The answer can't be D because I got it wrong when I took my test so it has to be A,B,or C

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If something is a good conductor, what type of insulator is it?

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4. a poor insulator

If rest other things are kept constant or unchanged then a good conductor can be termed as a poor insulator.

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Three energy changes that result in movements accuring in your body as sit down reading book?

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