Part A A proton with an initial speed of 7.60x105 m/s is brought to rest by an electric field Did the proton move into a region of higher potential or lower potential? • View Available Hint(s) O higher potential O lower potential Submit Previous Answers v Correct Part B What was the potential difference that stopped the proton? Express your answer with the appropriate units. • View Available Hint(s) HÀ ? AV = Value Units Submit

Part A A proton with an initial speed of 7.60x105 m/s is brought to rest by an electric field Did the proton move into a region of higher potential or lower potential? • View Available Hint(s) O higher potential O lower potential Submit Previous Answers v Correct Part B What was the potential difference that stopped the proton? Express your answer with the appropriate units. • View Available Hint(s) HÀ ? AV = Value Units Submit

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Part A A typical cell has a membrane potential of -70 mV, meaning that the potential inside the cell is 70 mV less than the potential outside due to a layer of negative charge on the inner surface of the cell wall and a layer of positive charge on the outer surface. This effectively makes the cell wall a charged capacitor. Because a cell's diameter is much larger than the wall thickness, it is reasonable to ignore the curvature of the cell and think of it as a parallel-plate capacitor. How much energy stored in the electric field of a 50-um-diameter cell with a 7.0-nm-thick cell wall whose dielectric constant is 9.0? Express your answer to two significant figures and include the appropriate units. HA ? Uc = Value Units Submit Request Answer < Return to Assignment Provide Feedback
The electric potential in a region of space is V = 300V-m, where and y are in meters. √z²+y² Part A What is the strength of the electric field at (x, y) = (2.9m, 1.3m)? Express your answer in volts per meter. E= Submit Part B 0= V=| ΑΣΦΑ Submit 4 Request Answer IVE ΑΣΦ What is the direction of the electric field at (x, y) = (2.9m, 1.3m)? Give the direction as an angle ccw from the positive x-axis. Express your answer in degrees. ? Request Answer V/m ? ºccw from the positive z-axis
Learning Goal: To understand the relationship and differences between electric potential and electric potential energy. In this problem we will learn about the relationships between electric force F, electric field Ē, potential energy U, and electric potential V. To understand these concepts, we will first study a system with which you are already familiar: the uniform gravitational field. Part B Now find the gravitational potential energy U (z) of the object when it is at an arbitrary height z. Take zero potential to be at position z = 0. Keep in mind that the potential energy is a scalar, not a vector. Express U (2) in terms of m, z, and g. U (z) = Submit ΨΕ ΑΣΦ Request Answer ?
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Consider a proton moving from point A to point B towards two positive charges as illustrated below. Select all correct statements regarding the work involved for this action. B A Positive work is done by the electric field. Negative work is done by the electric field External (positive) works needs to be applied. +
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Part A A 10.0 nC charge is at æ = Ocm and a -1.5 nC charge is at x = 5 cm 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. cm Submit Request Answer Provide Feedback
Part A To what potential should you charge a 1.0 F capacitor to store 1.0 J of energy? Express your answer in volts. AE中 ΑΣφ ? V = Submit Request Answer Provide Feedback
A parallel-plate capacitor is charged by a 9.00 V battery, then the battery is removed. Part A What is the potential difference between the plates after the battery is disconnected? Express your answer with the appropriate units. V = 9.00 V Previous Answers Correct Here we learn how to determine the potential difference between the capacitor's plates after the battery is disconnected from it. Part B What is the potential difference between the plates after a sheet of Teflon is inserted between them? Express your answer with the appropriate units. VT = 4.29 V Submit Previous Answers Request Answer iew?assignmentProblemID=192449649
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Part A An isolated 4.40 µF parallel-plate capacitor has 4.20 mC of charge. An external force changes the distance between the electrodes until the How much work is done by the external force? capacitance is 2.40 µF. Express your answer with the appropriate units. HA W = Value J %D Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Return to Assignment Provide Feedback
Capacitors C₁ = 10 μF and C₂ = 20 μF are each charged to 22 V, then disconnected from the battery without changing the charge on the capacitor plates. The two capacitors are then connected in parallel, with the positive plate of C₁ connected to the negative plate of C2 and vice versa. Part A Afterward, what is the charge on each capacitor? Express your answers in microcoulombs separated by a comma. ► View Available Hint(s) VE ΑΣΦ Q1, Q2 = Submit X Incorrect; Try Again; 14 attempts remaining Part B Previous Answers What is the potential difference across each capacitor? Express your answers in volts separated by a comma. ► View Available Hint(s) 17 ΑΣΦ AV₁, AV₂ = Submit Previous Answers X Incorrect; Try Again; 14 attempts remaining w μC V