Mathematics, 25.06.2019 11:30 crystalhoff9419
The strength of a bar magnet's magnetic field decreases with distance according to what is known as an inverse cube law; multiplying the distance from the magnet by a factor of k divides the magnetic field strength by a factor of k^3. suppose the magnetic field strength of the magnet is 64 gauss at a distance of 10 cm away. what is the magnetic field strength of the magnet, 20 cm away?
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