The magnitudes of two forces are measured to be 120 ± 5 n and 60 ± 3 n. find the sum and diff erence of the two magnitudes, giving the uncertainty in each case.

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Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?