BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

Each of the electrons in a particle beam has a kinetic energy of 1.60 × 10−17 J. (a) What is the magnitude of the uniform electric field (pointing in the direction of the electrons’ movement) that will stop these electrons in a distance of 10.0 cm? (b) How long will it take to stop the electrons? (c) After the electrons stop, what will they do? Explain.

(a)

To determine
The magnitude of electric field.

Explanation

Given info: The initial kinetic energy of electrons (KE) is 1.6×1017J .

Work done equals the negative of kinetic energy. This is because the final kinetic energy is zero.

Formula to calculate the work done is,

W=FExcosθ

  • FE is the electric force.
  • x is the displacement.
  • θ is the angle between the force and displacement.

The electric force is,

FE=eE

  • e is the elementary charge.
  • E is the electric field.

Therefore,

eExcosθ=KE

On Re-arranging,

E=KEexcosθ

Substitute 1.6×1017J for KE, 180ο for θ , 10.0 cm for x and 1

(b)

To determine
The required time.

(c)

To determine
The electron’s acceleration.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

According to genomic researchers, a single inherited gene is the probable cause of common obesity. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What are target cells?

Biology (MindTap Course List)

For each atomic symbol, give the name of the element. a Be b Ag c Si d C

General Chemistry - Standalone book (MindTap Course List)

If Earth did not rotate, could you still define the ecliptic? Why or why not?

Horizons: Exploring the Universe (MindTap Course List)

How does an ionic bond form?

Biology: The Dynamic Science (MindTap Course List)