Two long, straight parallel wires 8.2 cm apart carry currents of equal magnitude i. the parallel wires repel each other with a force per unit length of 3.2 nn/m. the permeability of free space is 4 π × 10−7 t · m/a. find i. answer in units of ma.

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Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s

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