=9x10- =i-E=Ll-E=L@oriE-e=1.6x10'19c 41t0 C2 ' 4mg T\" 41160 r2 ' 471360 r3 4TE0 r3 ' 4. Tina has four aluminum spheres A, B, C, and D. She charges Object A and it has a charge of +5 pC. She discovers that it repels object B. Object C is attracted to object B. A) Tina claims that Object B is positively charged with +5 pC because the force of object B on A is equal to the force of object A on B. She also claims that Object C is negatively charged. ls Tina correct? Explain. B) In a subsequent experiment, Object D is charged in a different method and it has a charge of 3 uC. What should Tina do with this object to confirm her assignments of type of charge? C) If object A is momentarily touched to object D and then they are separated, how many electrons will be transferred and from which object? Explain. 5. Consider the three charge distributions shown at the right. Each distribution consists of3 identical charges. The magnitude of the charges in each case is +q. The charges are located a distance R from the point p. For convenience sin(30) = cos(60)=0.5, cos(30)=sin(60) = 0.867, A) Determine the direction ofthe electric field at point p in each case. Explain your reasoning. B) Rank the force on the charge located at p from largest to smallest magnitude. Explain your reasoning