(10%) Problem 3: A positively charged particle 01 = +45 nc is held at fixed position. A second charge @2 of mass m = 6.5 ug is located a distance d = 25 cm directly above charge 21. The net force on Q2 is equal to zero. You may assume this system is close to the surface of the Earth. Q2 Q1 Otheexpertta.com 25% Part (a) Which of the following represents the free-body diagram of charge @2? Correct! 25% Part (b) What is the sign of the charge on @2? Positive Correct! 25% Part (c) Write an equation for the magnitude of charge @2 in terms of the given variables. 1Q21 = ( m g d2 )/( k Q1 ) Correct! 25% Part (d) Calculate the magnitude of @2 in units of nanocoulombs. Grade Summary 1Q21 = 9.83 * 1091 Deductions 0% Potential 100%