Optional extension The strength of a sensor signal is inversely proportional to the square of its di

Question

Optional extension

The strength of a sensor signal is inversely proportional to the square of its distance from a transmitter. If the distance is reduced to one-third of its original value and the signal becomes $n$ times as strong, find $n$.[3]

Accepted Answer

$n=9$.

Inverse-square force multiplier

Inverse-square force multiplier

Solution:

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