11. [-/4 Points] SERPSE10 22.6.P.024.MI. ASK YOUR TEACHER PRACTICE ANOTHER A proton accelerates from rest in a uniform electric eld of 700 N/C. At one later moment, its speed is 1.60 Mm/s (nonrelativistic because v is much less than the speed of light). (a) Find the acceleration of the proton. 2 m/s (b) Over what time interval does the proton reach this speed? s (c) How far does it move in this time interval? m (d) What is its kinetic energy at the end of this interval? J Need Help? 12. [-/2 Points] DETAILS SERPSE10 22.A.OP.024. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the two small, equal-mass, charged balls shown in the figure. The top ball is suspended from the ceiling by a filament, and has a charge of q, = 27.3 nC. The bottom ball has a charge of 92 = -58.0 nC, and is directly below the top ball. Assume d = 2.00 cm and m = 6.30 g. 91 + 92 - A (a) Calculate the tension (in N) in the filament. (b) If the filament can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the filament breaks? (Give your answer in cm.) cm Need Help? Read It