018 10.0 points What is the electric field strength at a point Two charges are located in the (x, y) plane as 3.1 cm to the left of the middle charge? The shown. The positive x direction is to the right Coulomb constant is 8.99 x 109 N . m2/C2. and the positive y direction is upwards. The Answer in units of N/C. Answer in units fields produced by these charges are observed of N/C. at a point p with coordinates (0, 0). - p 016 (part 2 of 2) 10.0 points What is the magnitude of the force on a 1.9 MC charge placed at this point? 1.7 m 1.6 m Answer in units of N. Answer in units of 8.3 C 8.8 C N. O O 3 m 2.3 m K 017 10.0 points A circular ring made of an insulating material Find the x-component of the electric field is cut in half. One half is given a charge at p. The value of the Coulomb constant is 8.98755 x 109 N . m2 /C2 Answer in units of N/C. Answer in units of N/C.Answer in units of #C. Answer in units of 5. Yes, by rubbing the two objects together UC 005 10.0 points 008 10.0 points A particle of mass 23 g and charge 12 AC is Two spheres, fastened to "pucks", are riding released from rest when it is 90 cm from a on a frictionless airtrack. Sphere 1 is charged second particle of charge -30 AC. with 2 nC, and sphere 2 is charged with 6 nC. Determine the magnitude of the initial ac- Both objects have the same mass. 1 nC is celeration of the 23 g particle. equal to 1 x 10 * C. Answer in units of m/s . Answer in units As they repel, of m/s. Select all that apply 006 (part 1 of 2) 10.0 points 1. sphere 2 accelerates 3 times as fast as Two identical small metal spheres with q, > 0 sphere 1. and |q1| > |q2| attract each other with a force of magnitude 70.6 mN when separated by a 2. sphere 1 accelerates 9 times as fast as distance of 3.95 m. sphere 2. r1 = 22 um 12 = 22 um 3. they do not accelerate at all, but rather separate at constant velocity. F21 F12 91 42 3.95 m 4. sphere 1 accelerates 3 times as fast as The spheres are then brought together until sphere 2. they are touching, enabling the spheres to attain the same final charge q. 5. they have the same magnitude of acceler- ation. OO 6. sphere 2 accelerates 9 times as fast as sphere 1. 42 -> q 009 (part 1 of 2) 10.0 points After the charges on the spheres have come to equilibrium, they spheres are separated so Two charged particles of equal magnitude that they are again 3.95 m apart. (+Q and -Q) are fixed at opposite corners of F21 F12 a square that lies in a plane (see figure below). A test charge -q is placed at a third corner. - 3.95 m Now the spheres repel each other with a force of magnitude 20.474 mN. What is the final charge on the sphere on the right? The value of the Coulomb constant is 8.98755 x 10" N . m /C2. -q O-Q Answer in units of /C. Answer in units of AC. What is the direction of the force on the test charge due to the two other charges? 007 (part 2 of 2) 10.0 points Select all that apply What is the initial charge q on the first sphere?012 (part 1 of 2) 10.0 points Three charges are arranged in the (r, y) plane as shown. y (m) 10 04nC OHN O A DID -1 0 0 7 nC -4 nC +0- I 0 1 2 3 4 5 6 7 8 9 10 (m) What is the magnitude of the resulting force (in nano-Newtons) on the 7 nC charge at the origin? The Coulomb constant is 8.98755 x 10 N . m /C2. Answer in units of nN. Answer in units of nN. 013 (part 2 of 2) 10.0 points What angle does the resultant force on the 7 nC charge at the origin make with the pos- itive r axis? Quadrant I lies between 0' and 90", quadrant II between between 90" and 1809, etc. Answer in units of degs. Answer in units of degs