What examples can you find in your home that are examples of kinetic and potential energy?

1 answer:

3 0

Kinetic and potential are not only found in the complicated things but it also appears to be in everyone's everyday lives. Potential energy; the pressure in the unopened soda in your fridge and compressed spring in your mattress. Kinetic energy; rubber band being stretched and when moving your skateboard around your house.

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The magnitude of the electrostatic force between two identical ions that are separated by a distance of 5.0A is 3.7×10^-9N.a) wh

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Explanation:

Given that,

Electrostatic force, $F=3.7\times 10^{-9}\ N$

Distance, $r=5\ A=5\times 10^{-10}\ m$

(a) $F=\dfrac{kq^2}{r^2}$ , q is the charge on the ion

$q=\sqrt{\dfrac{Fr^2}{k}}$

$q=\sqrt{\dfrac{3.7\times 10^{-9}\times (5\times 10^{-10})^2}{9\times 10^9}}$

$q=3.2\times 10^{-19}\ C$

(b) Let n is the number of electrons are missing from each ion. It can be calculated as :

$n=\dfrac{q}{e}$

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n = 2

Hence, this is the required solution.

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