• :00Days
  • :00Hours
  • :00Mins
  • 00Seconds
A new era for learning is coming soonSign up for free
Log In Start studying!

Select your language

Suggested languages for you:
Deutsch (DE)
Deutsch (UK)
Deutsch (US)

Americas

Europe

Answers without the blur. Sign up and see all textbooks for free! → Illustration

Chapter 21: Coulomb’s Law

Expert-verified
Fundamentals Of Physics
Pages: 609 - 629
Fundamentals Of Physics

Fundamentals Of Physics

Book edition 10th Edition
Author(s) David Halliday
Pages 1328 pages
ISBN 9781118230718

Answers without the blur.

Just sign up for free and you're in.

Register for Free I’ll do it later
Illustration

89 Questions for Chapter 21: Coulomb’s Law

  1. Electrons and positrons are produced by the nuclear transformations of protons and neutrons known as beta decay.(a) If a proton transforms into a neutron, is an electron or a positron produced? (b) If a neutron transforms into a proton, is an electron or a positron produced?

    Found on Page 609

  2. Question: (a) what equal positive charges would have to be placed on Earth and on the Moon to neutralize their gravitational attraction? (b) Why don’t you need to know the lunar distance to solve this problem? (c) How many kilograms of hydrogen ions (that is, protons) would be needed to provide the positive charge calculated in (a)?

    Found on Page 627

  3. In Fig. 21-25, four particles form a square. The charges areq1=q2=Q, and q2=q3=q. (a) What is Q/qif the net electrostatic force on particles 1 and 4 is zero? (b) Is there any value of qthat makes the net electrostatic force on each of the four particles zero? Explain.

    Found on Page 625

  4. In Fig. 21-19, a central particle of charge -2qis surrounded by a square array of charged particles, separated by either distance dor d/2 along the perimeter of the square. What are the magnitude and direction of the net electrostatic force on the central particle due to the other particles? (Hint:Consideration of symmetry can greatly reduce the amount of work required here.)

    Found on Page 624

  5. In Fig. 21-25, the particles have charges q1 = -q2=100nCand q3 = -q4=200nC and distance a=5.0cm. What are the (a) xand (b) ycomponents of the net electrostatic force on particle 3?

    Found on Page 625

  6. Figure 21-20 shows three identical conducting bubblesA,B, andCfloating in a conducting container that is grounded by a wire. The bubbles initially have the same charge. BubbleAbumps into the container’s ceiling and then into bubbleB. Then bubbleBbumps into bubbleC, which then drifts to the container’s floor. When bubbleCreaches the floor, a charge ofis transferred upward through the wire, from the ground to the container, as indicated. (a) What was the initial charge of each bubble? When (b) bubbleAand (c) bubbleBreach the floor, what is the charge transfer through the wire? (d) During this whole process, what is the total

    Found on Page 624

  7. Two particles are fixed on an x-axis. Particle 1 of charge 40μCis located at x=-2.0cm; particle 2 of charge Qis located at x=3.0cm. Particle 3 of charge magnitude 20μCis released from rest on the yaxis aty=2.0cm. What is the value of Qif the initial acceleration of particle 3 is in the positive direction of (a) the x-axis and (b) the y-axis?

    Found on Page 625

  8. Figure 21-21 shows four situations in which a central proton is partially surrounded by protons or electrons fixed in place along a half-circle. The anglesθare identical; the anglesareϕ also. (a) In each situation, what is the direction of the net force on the central proton due to the other particles? (b) Rank the four situations according to the magnitude of that net force on the central proton, greatest first.

    Found on Page 624

  9. In Fig. 21-26, particle 1 of charge +1.0μCand particle 2 of charge -3.0 μCare held at separation L=10.0cm on an x-axis. If particle 3 of unknown charge q3is to be located such that the net electrostatic force on it from particles 1 and 2 is zero, what must be the (a) xand (b) ycoordinates of particle 3?

    Found on Page 625

  10. Three particles are fixed on an x-axis. Particle 1 of charge q1 is at x=-a, and particle 2 of charge q2is at x=+a. If their net electrostatic force on particle 3 of charge -Qis to be zero, what must be the ratio q1 /q2when particle 3 is at (a)x=+0.500a and (b) x=+1.50a?

    Found on Page 625

Related Physics Textbooks with Solutions

View all the textbook solutions in Physics

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.