(6%) Problem 6: A positively charged particle Q1 = +35 11C is held at xed position. A second charge Q2 ofmass m = 6.5 ug is located a distance d= 4'5 c111 directly above charge Q1. The net force on Q2 is equal to zero. You may assume this system is close to the surface of the Earth. \fPart (a) Which of the following represents the free-body diagram of charge @2? SchematicChoice : FE F g E E E Part (b) What is the sign of the charge on O2? MultipleChoice : 1) Positive 2) Negative 3) Q2 is unchargedPart (c) Write an equation for the magnitude of charge O, in terms of the given variables. Expression : Q21 = Select from the variables below to write your expression. Note that all variables may not be required. a, p, 0, a, b, d, g, h, j, k, m, P, Q1, S, t Part (d) Calculate the magnitude of O, in units of nanocoulombs.Numeric : A numeric value is expected and not an expression. 1Q21 =(6%) Problem 7': A positively charged particle Q1 = 25 11C is held immobile at the origin. A negatively charged particle Q2 = 4'6 11C of mass m = 6.5 pg is located a distance d = 35 c111 along the positive xaxis from the positively charged particle. Q2 d[1- g 33% Part (a) What is the magnitude of the electric force in newtons that acts on the charge Q2? F12=| N & 33% Part (b) \"'hat is the direction of the force on charge Q2? 0 Positive ydireetion 0 Positive xdirection O Negative Xdireetion 0 Not enough information to determine 0 Negative ydirection a = A 33% Part (c) What is the magnitude of the acceleration, a in m/s , experienced by charge Q2? m/s2