3. Two charged spheres are placed with their centers 0.15 m apart. One has a charge of +25 x 10^-12 C and the other has a charge of -31 x 10^-12 C. What is the electric force exerted on one sphere by the other? (A)3.4 x 10-20 N
(B) 4.6 x 10'' N
(C) 3.1 x 10-0N
(D) 2.4 x 10°N

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