16. A test charge of +2 /C is placed halfway between a charge of +6 /C and another of +4 /C separated by 10 cm. (a) What is the magnitude of the force on the test charge? (b) What is the direction of this force (away from or toward the +6 /C charge)? 14. How far apart must two point charges of 75.0 nC (typical of static electricity) be to have a force of 1.00 N between them? 17. Two particles, with identical positive charges and a separation of 2.60 x 10-2 m, are released from rest. Immediately after the release, particle 1 has an acceleration a , whose magnitude is 4.60 x 103 m/s, while particle 2 has an acceleration az whose magnitude is 8.50 x 103 m/s2. Particle 1 has a mass of 6.00 x 10 kg. Find (a) the charge on each particle and (b) the mass of particle 2. 5 Grading Rubric: Tutorial #09 #16 (a) There is an axis to define directions Forces between relevant pairs of charge are worked out Forces above are combined taking directions into account Value, units #16 (b) Direction is identified correctly 14 A valid reason is given for the choice of direction #14 Solution explains how to arrive at a value, identifying the physical principles used 12 Value, units #17 (a) Solution explains how to arrive at a value for charge, identifying the physical principles used Value, units #17 (b) Solution explains how to arrive at a value for mass, identifying the physical principles used Value, units 14 Total / 10