Question 9 Use the following diagram to answer the question below. Not yet answered Marked out of 1.0 1.50 m 2 25 m Flag question A B C -2.00 mC +3.00 mC -2.00 mc Calculate the net electrostatic force on Charge A. Select one: O a. 2.40 x 10 5 N [left] O b. 2.62 x 1073 N [right] O c. 2.14 x 104 N [right] O d. 3.60 x 104 N [left]Question 8 Two point charges produce an electrostatic force of 6.3/ x 10 Not yet answered Marked out of Determine the electrostatic force produced if charge 1 is doubled, charge 2 is tripled and the distance between them is reduced by half. 1.0 Flag question Select one: O a. 1.65 x 10 IN O b. 6.87 x 10 3 N O c. 4.12 x 10 - N O d. 2.06 x 10 - Ngestion / Physics 30 students were investigating different methods of charging. They made the following observations: it yet swered A) Grounding is required to complete this method of charging. irked out of B) Rubbing an ebonite rod with fur results in electrons being transferred from the fur to the rod. C) A neutral electroscope becomes negatively charged when the top is touched with a negatively charged object. Remove D) If a system contains + 4 C of charge and -6 C of charge, the net charge of the system is - 2 C. Methods of Charging Physics Principles * (The same principle may be used more than once). 1. Conduction 5. Conservation of energy 2. Friction 6. Conservation of mass-energy 3. Induction 7. Conservation of charge 4. All of the above 8. Conservation of nucleons Select the method of charging and the physics principle that explains the observation. Physics Principle Observation Method of Charging 4 B C DQuestion O During a thunderstorm in Calgary, a 1900 kg car slides at a speed of 5.00 m/s into a 1300 kg car stopped at a red light. Upon the collision, the cars lock together and the combined mass slides Not yet into the intersection. answered Marked out of The kinetic energy of the combined mass after the collision, and the type of collision, respectively are: 1.0 Flag Select one: question O a. 2.38 x 104 J and inelastic O b. 2.38 x 104 J and elastic O c. 1.41 x 104 j and inelastic O d. 1.41 x 104 J and elastic Question / Physics 30 students were investigating different methods of charging. They made the following observations: ot yet nswered A) Grounding is required to complete this method of charging. arked out of B) Rubbing an ebonite rod with fur results in electrons being transferred from the fur to the rod. C) A neutral electroscope becomes negatively charged when the top is touched with a negatively charged object. Remove D) If a system contains + 4 C of charge and -6 C of charge, the net charge of the system is -2 C