In Figure (a), we move an electron from an infinite distance to a point at distance R = 4.70 cm from a tiny charged ball. The move requires work W = 1.48 × 10-13 J by us. (a) What is the charge Q on the ball? In Figure (b), the ball has been sliced up and the slices spread out so that an equal amount of charge is at the hour positions on a circular clock face of radius R=4.70 cm. Now the electron is brought from an infinite distance to the center of the circle. (b) With that addition of the electron to the system of 12 charged particles, what is the change in the electric potential energy of the system? (a) Number i (b) Number |—R- (a) Units Units e < <

In Figure (a), we move an electron from an infinite distance to a point at distance R = 4.70 cm from a tiny charged ball. The move requires work W = 1.48 × 10-13 J by us. (a) What is the charge Q on the ball? In Figure (b), the ball has been sliced up and the slices spread out so that an equal amount of charge is at the hour positions on a circular clock face of radius R=4.70 cm. Now the electron is brought from an infinite distance to the center of the circle. (b) With that addition of the electron to the system of 12 charged particles, what is the change in the electric potential energy of the system? (a) Number i (b) Number |—R- (a) Units Units e < <

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)...

See similar textbooks

Similar questions

The electric force between two horizontal charged parallel plates is F = -(4 x 10-6 )/y 2 N. Assume the lower plate is fixed at y = 0. Calculate the work you must do to move the upper plate from y = 1 mm to y = 2 mm (you are separating the plates when you do this). Note that the electric force is pointed down and so the force you apply is pointed up.
Four point charges are placed along x-axis: q1 = 6 nC at x 3 cm, q= 4 nC at x = -2 cm, qs= 5 nC at x 1 cm and q=3 nC at x = -4 cm. Calculate the total potential energy associated if we put a fifth charge, qs= 2 nC at x = 0 cm. (Illustrate the problem first before solving.)
Identical point charges (+50 µC) are placed at the corners of a square with sides of 2.0-m length. How much external energy is required to bring a fifth identical charge from infinity to the geometric center of the square?
Charge q1 = 2 nC is located at the coordinate system origin, while charge q2 = 1.3 nC is located at (a, 0), where a = 1.5 m. The point P has coordinates (a, b), where b = 0.55 m. A third charge q3 = 18.5 nC will be placed later. Part (c) What is the total potential energy U, in joules, of the final configuration of three charges? Answer is not 2.63x10^-7 J
A charge of -12 nC is uniformly distributed around a thin plastic ring lying in a yz plane with the ring center at the origin. A -5.6 pC point charge is located on the x axis at x = 3.0 m. For a ring radius of 1.2 m, how much work must an external force do on the point charge to move it to the origin?
Three charges, +23 uC, -23 uC and +23 uC are placed at A (0,5cm), B (5cm,0), C (-5cm,0). Calculate the potential energy of the whole system of charges.
In the figure point P is at a distance d = 4.63 m from particle 1 (q = -5e) and distance d = 3.13 m from particle 2 (q2 = +5e), with both particles fixed in place. (a) With V =0 at infinity, what is V at P? If we bring a particle of charge q3 = +5e from infinity to P, (b) how much work do we do and (c) what is the potential energy of the three-particle system? %3D %3D 92 (a) Number Units (b) Number
In Figure (a), we move an electron from an infinite distance to a point at distance R = 9.20 cm from a tiny charged ball. The move requires work W = 2.75 x 10-13 J by us. (a) What is the charge Q on the ball? In Figure (b), the ball has been sliced up and the slices spread out so that an equal amount of charge is at the hour positions on a circular clock face of radius R = 9.20 cm. Now the electron is brought from an infinite distance to the center of the circle. (b) With that addition of the electron to the system of 12 charged particles, what is the change in the electric potential energy of the system? (a) Number i (b) Number i |-R- (a) Units Units (b)
The image shows three charges fixed in place. The distance in the image is ? = 0.2 m and the charge is ? = 4×10−16 C An electron (not pictured) initially at point A has a speed of 106 m/s as it moves toward point B. What is the speed of the electron at point B?
Two charges Q1=22μC and Q2=24μC are placed on the corners of a rectangle with the sides a=14mm and b=26mm. How much work must be done to bring a third charge Q3=-9μC from infinity to point P that is a distance c=0.51b away from Q1 as shown in the figure below. Express your answer in units of Joules. Take Coulomb constant as k=9.0x109 N.m2/C2.
Two point charges q1 = 2.2nC and q = -1.5nC are 13 cm apart. Point A is midway between the charges and point B is 12 cm from q1 and 5 cm from q2. Calculate the work done by the electric field on a charge of q3 = +3.6nC that moves from A to B. Express your answer in uJ.
An ionized nitrogen molecule (N₂+) at point A has charge +e and moves at 1.92 × 10³ m/s in the positive x-direction. A constant electric force in the negative x-direction slows the molecule to a stop at point B, a distance of 0.796 mm past A on the > 2 axis. Calculate the x-component of the electric field and the potential difference between points A and B. (The mass of a nitrogen molecule is 4.65 x 107 kg and the fundamental charge is e = 1.60 × 10−¹9 C.) -26 HINT (a) the x-component of the electric field (in V/m) 672.96482 X V/m (b) the potential difference between points A and B (in V) V