Question

Point 1 7) Determine the magnitude of the horizontal component of the tension force in the string (Hint calculations are needed!) Points: 3 5) End of long. Problem: When the sphere reaches quilibrium vertical axis (assuming the same electric field as above). calculate the angle that the string makes with the MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Points: 3 9) Two point charges exert a 7.00 N force on each other. Calculate the force in N) if the distance between them is increased by a factor of 8. A) 0.875 N B) 56.0 N 1.14N D) 0.109 N E) 0.235 N Points: 5 10) In the future people will only enjoy one sport: Electrodisc. In this sport you gain points when you cause metallic dises hovering on a field to exchange charge. You are an Electrodisc player playing the popular four disc variant. The disks have charges of 9A --80C98-20C4C=+5.0 C and 9 - 12.0 C. You bring three disks together and then separate them. You measure the resulting charge of these three disks and that it is +3.0 C per disk. Which three disks did you bring together? A) A, B, and C B) A, B, and D C) A, C, and D D) B, C, and D E) None of the above.

Answer 1

9. F = 7N - fata as the distance increases by 8 the force decreases by times f': fay* 7 F' : 0.109N option (D) 10. QA =-84C, 28=-24C Que = 5MC, 20=+1240 (6) A,C&D a = - 8 + 5+12 = quc so, each disc = 9/2 = 346 oftich (6) 1