2 years ago

Please help I can’t get this right

Physics

1 answer:

True [87]2 years ago

8 0

Answer:

6,76 x 10^-7 T.

Explanation:

The Magnetic field formula for a wire is B=(μ x I)/2πd , where μ (=4π x 10^-7 Tm/A) is the permeability, <u>I</u> is the current and <u>d</u> is the distance.

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When point charges q = +8.4 uC and q2 = +5.6 uC are brought near each other, each experiences a repulsive force of magnitude 0.6

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If a train is 100 kilometers away, how much sooner would you hear the train coming by listening to the rails (iron) as opposed t

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2 years ago