Part A What is the electric potential a distance of 2.8x10-15 m away from a proton? Express your answer using two significant figures. ? V = V Submit Request Answer Part B What is the electric potential energy of a system that consists of two protons 2.8x10-15 m apart-as might occur inside a typical nucleus? Express your answer using two significant figures. ΑΣφ ? PE = J

Calculate the potential at point P as shown in the diagram. a. 1.4 x 10^4 V b. 1.4 x 10^6 V c. 2.1 x 10^4 V d. 1.7 x 10^6 V

Part A Two electrons are in the vicinity of a proton. The potential energy of the proton is -2.40x10-25 J. What is the potential at the proton's position? Express your answer with the appropriate units. Vp = = -1.50x10-6 V Submit Previous Answers Part B Correct If one of the electrons is 1.0 cm from the proton, what is the distance of the second electron from the proton? Express your answer with the appropriate units. T2 1.06x10-3 m Submit Previous Answers VP 18.3.2 Correct Part C V = Two protons are held fixed on the x axis at x = +1 m and x = -1 m. A third proton is placed at the origin and then given a gentle nudge in the +y direction. Derive an expression for the speed of this proton as a function of its position on the y axis. Assume that it starts from rest and neglect gravity. Express your answer in terms of e, k, mp, and y. VE ΑΣΦ ?

Part A An electron is to be accelerated from a velocity of 3.00x106 m/s to a velocity of 9.50x106 m/s. Through what potential difference must the electron pass to accomplish this? Express your answer in volts. V – V2 = V Submit Request Answer Part B Through what potential difference must the electron pass if it is to be slowed from 9.50x106 m/s to a halt? Express your answer in volts. V – V2 = V

Revie Part A A capacitor consists of two 4.1-cm-diameter circular plates separated by 1.0 mm. The plates are charged to 160 V, then the battery is removed. How much energy is stored in the capacitor? Express your answer in joules. να ΑΣφ Uc = J. %3D Submit Request Answer Part B How much work must be done to pull the plates apart to where the distance between them is 2.0 mm? Express your answer in joules. ΥΠ ΑΣΦ W = J Submit Request Answer

A 15.0 nC charge is at x = 0cm and a -1.2 nC charge is at x = 7 cm . Part A At what point or points on the x-axis is the electric potential zero? Express your answer using two significant figures. If there is more than one answer, give each answer separated by a comma. Xo = cm Submit Request Answer

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The Bohr radius ao is the most probable distance between the proton and the electron in the Hydrogen atom, when the Hydrogen atom is in the ground state. The value of the Bohr radius is: 1 ao = 0.529 angstrom. One angstrom is 10-10 m. What is the electric potential produced by the proton at a distance of 2.14 Bohr radiús away from the proton? What is the potential energy of the proton- electron system when they are at this distance from each other?

Part A An electron moves between two plates and experiences an increase in kinetic energy of 3.8x10-15 J. Calculate AV = VA - VB of the plates. AV = Express your answer with the appropriate units. Value A A Submit Request Answer VA Units ? VB B