A proton is moved in the direction opposite to an external E-field. Choose the statement that best describes what is happening to the proton. A) it is moving from high potential to low potential and electrical energy of a system consisting of the proton and the electric field is increasing. B) it is moving from low potential to high potential and electrical energy of a system consisting of the proton and the electric field is decreasing. C) it is moving from low potential to high potential and the electrical energy of a system consisting of the proton and the electric field is increasing. D) it is moving from high potential to low potential and electrical potential energy of a system consisting of the proton and the electric field is decreasing.

a) Determine the change in electric potential energy of a system of two charged objects when a -15.0-nC charged object and a -40.0nC charged object move from an initial separation of 50.0 cm to a final separation of 10.0 cm. b) what other quantities can you calculate using this information?

Imagine a parallel plate capacitor with mica between the plates.   Suppose the potential difference between the plates is 82V, and there is an electric field between the plates with a strength of 320 N/C.  If each plate has an area of 0.030 square meters,   a)  What is the separation between the plates? b)  Find the capacitance of the capacitor. c)  How much charge is on each plate? d)  How much energy is stored in the capacitor?   For each part, explain your reasoning.

Problem 18.17 - Enhanced - with Solution You may want to review (Page). For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Parallel plates and conservation of energy. Part A An electron is to be accelerated from a velocity of 3.50x 10 m/s to a velocity of 7.50x105 m/s. Through what potential difference must the electron pass to accomplish this? for Panze for Partido for Part redo foart A refor Part A keyboard shortcuts for Part A help for Part. A Viniital - Viinal= Submit Part B Request Answer Through what potential difference must the electron pass if it is to be slowed from 7.50x105 m/s to a halt? Vinitial - Vinal= Submit for Partfondo for Part redo folet B reor Part B keyboard shortcuts for Part B help for Part B Request Answer V