Asurveyor is using a magnetic compass 5.6 m below a power line in which there is a steady current of 140 a. (a) what is the magnetic field in microteslas at the site of the compass due to the power line? (b) will this field interfere seriously with the compass reading? the horizontal component of earth’s magnetic field at the site is 20 µt.
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The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].
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Asurveyor is using a magnetic compass 5.6 m below a power line in which there is a steady current of...
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