k ww a b Consider an air-filled parallel-plate capacitor with one plate connected to a spring having a force constant k = 9000.0 N/m, and another plate held fixed. The system rests on a table top as shown in Figure. Both plates has an area of 7 mm2 Say the charges placed on plates a and b are 2 µC and -2 µC, respectively, a) Calculate the potential difference across the capacitor given the separation between plates is 9 mm. b) Calculate the electric force between capacitor plates assuming that the force only acts perpendicularly to the plates. Input the magnitude of the force (absolute value) c) how much does the spring expand from the equilibrium position?

k ww a b Consider an air-filled parallel-plate capacitor with one plate connected to a spring having a force constant k = 9000.0 N/m, and another plate held fixed. The system rests on a table top as shown in Figure. Both plates has an area of 7 mm2 Say the charges placed on plates a and b are 2 µC and -2 µC, respectively, a) Calculate the potential difference across the capacitor given the separation between plates is 9 mm. b) Calculate the electric force between capacitor plates assuming that the force only acts perpendicularly to the plates. Input the magnitude of the force (absolute value) c) how much does the spring expand from the equilibrium position?