/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q73P Imagine two 1.0g bags of protons... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 4: Q73P (page 718)

Imagine two 1.0g bags of protons, one at the earth鈥檚 north pole and the other at the south pole.

(a) How many protons are in each bag?

(b) Calculate the gravitational attraction and the electric repulsion that each bag exerts on the other.

(c) Are the forces in part (b) large enough for you to feel if you were holding one of the bags?

Short Answer

Expert verified

The number of protons is N=6.0脳1023.

Fe=4.9脳105NFg=3.9脳10-31N

The gravitational force is so small to be delectated but the electric force is so large.

Step by step solution

01

Number of protons.

Given d=2Re,mb=1.0脳10鈭�3kgandG=6.67脳10鈭�11N.m2kg鈭�2

a) The mass of proton is mp=1.67脳10-27kg so the total number of protons

mb=Nmp....=>(1)

Substitution in (1) yields

N=1.0脳10鈭�31.67脳10鈭�27N=6.0脳1023proton

Hence the number of protons is N=6.0脳1023

02

Calculation of electric and gravitational force.

The Electric force is

F=kq2d2鈥�鈥�.=(2)

The charge is given by

q=Ne=6脳1023脳6.67脳10鈭�19=6.9脳104C

The distance is twice as radius of earth

d=2脳6.371脳106=1.3脳107m

Substitute in (2)

Fe=9脳109脳9.6脳10421.3脳1072F胃=4.9脳105N

The gravitational force is given by

F=Gm1m2d2鈥�鈥�..>(3)

Substitute in (3)

Fg=6.67脳10鈭�11脳1.0脳10鈭�321.3脳1072Fg=3.9脳10鈭�31N

03

Conclusion

Hence the gravitational force is so small to be delectated but the electric force is so large.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In the circuit shown in Fig. E26.18,蔚=36.V,R1=4.0惟,R2=6.0惟,R3=3.0惟(a) What is the potential difference Vab between points a and b when the switch S is open and when S is closed? (b) For each resistor, calculate the current through the resistor with S open and with S closed. For each resistor, does the current increase or decrease when S is closed?

Question:A ring-shaped conductor with radius a = 2.50 cm has a total positive charge Q = +0.125 nC uniformly distributed around it (see Fig. 21.23). The center of the ring is at the origin of coordinates O. (a) What is the electric field (magnitude and direction) at point P, which is on the x-axis at x = 40.0 cm? (b) A point charge q = -2.50 渭C is placed at P. What are the magnitude and direction of the force exerted by the charge q on the ring?

A 10.0cm long solenoid of diameter 0.400 cm is wound uniformly with 800 turns. A second coil with 50 turns is wound around the solenoid at its center. What is the mutual inductance of the combination of the two coils?

Question: Three negative point charges lie along a line as shown in Fig. Find the magnitude and direction of the electric field this combination of charges produces at point P, which lies 6.00 cm from the -2.00 mC charge measured perpendicular to the line connecting the three charges

Q) A straight, nonconducting plastic wire 8.50 cm long carries a charge density of +175 nC/m distributed uniformly along its length. It is lying on a horizontal tabletop. (a) Find the magnitude and direction of the electric field this wire produces at a point 6.00 cm directly above its midpoint. (b) If the wire is now bent into a circle lying flat on the table, find the magnitude and direction of the electric field it produces at a point 6.00 cm directly above its center.
See all solutions

Recommended explanations on Physics Textbooks

Electromagnetism

Read Explanation

Radiation

Read Explanation

Conservation of Energy and Momentum

Read Explanation

Linear Momentum

Read Explanation

Nuclear Physics

Read Explanation

Energy Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.