Page 1: Question 1 (1 point) 2 3 At what distance from an alpha particle would the magnitude of the electric field be 2.68*10- N/C? 5 6 (Hint: look up the charge on an alpha particle on the Physics 30 formula sheet) Round your answer to have 3 decimal places. 8 9 Your Answer: 10 Answer Question 2 (1 point) 91 + 8.0 cm 10.0 cm + 92 +1.0 uc Three point charges are fixed in place in the right triangle shown below, in which q1= 3.1 UC and q2 = -8.6 UC. What is the magnitude of the net force on the +1.0 JC charge due to the other two charges? Round your answer to have two decimal places. Your Answer:Page 1: Answer 1 2 3 Question 3 (1 point) 4 5 6 If an alpha particle experiences an electric force of 0.36 N at a point in space. what electric force would a proton experience at the same point? 7 8 9 Round your answer to have 3 decimal places. Your Answer: 10 Answer Question 4 (1 point) A proton is 8.34-x210'11 m from an electron. The magnitude of the force of attraction between them is x 1073 N. Round your answer to have 2 decimal places. Your Answer: Answer Page 1: Question 5 (1 point) 2 3 4 5 6 1 cm 8 9 10 Three charges, q1, q2, and q3 are distributed as shown. What is the magnitude of the net electric field at point A if q1=-0.195 nC, q2= 0.251 nC, and q3 = -0.324 nC? Round your answer to the nearest whole number. Your Answer: Answer Question 6 (1 point) The electric force between two charged objects is 157.6 N when the objects are 1.58x10-4 m apart. What is the new electric force between the same objects if the distance is changed to 19.88x10-4 m? Round your answer to have 1 decimal place. Your Answer: AnswerPage 1: Question 7 (1 point) 2 3 6 proton electron ; d 8 9 -- 10 A proton and an electron are separated by a distance, d=3.86x10-5 m. Calculate the magnitude of the net electric field at point A, a distance da=8.50x10- m below the midpoint between the charges. Round your answer to have 2 decimal places. Your Answer: Answer Question 8 (1 point) 4 . ... d +0+ .....>X proton electron A proton and an electron are separated by a distance d=2.15x10- m. Calculate the magnitude of the net electric field at point A, where da=2.53x10-5 m from the electron. Round your answer to have 2 decimal places Your Answer: AnswerAnswer Page '1: 1 2 3 Question 9 (1 point) 'll '1': 'Is 4 s .5 _\\._ 7' 8 9 l7 (ll 4; [fggl 10 Three point charges lie along a straight line as shown in the figure below,where q1 = 6.66 pC, :12 = 3.36 HQ and q3 = - 8.49 pC. The separation distances are d1 = 6.91 cm and d2 = 1.86 cm. Calculate the magnitude of the net electric force on q1. Round your answer to have 1 decimal place. Your Answer: Answer Question 10 (1 point) Two 15.5 g pith balls. suspended from long strings. are given equal amounts of charges. Due to their like charges, the pith balls repel and move a distance of d = 3.2 mm apart. Use the small angle approximation (sin and tan of the angle is approximately equal to the angle) and the length of the string is L28.2cm. The charge on each pith ball is _____ nC. Round your answer to have 2 decimal places. Your