Problem 3: An electron beam is shot into a region where there is both an electric field pointing upward of magnitude E- 7.2 N/C, and a magnetic field, B, as shown in the figure. While moving through the region the electron beam stays in a straight line with speed v- 140 m/s Randomized Variables E = 7.2 N/C v= 140 m/s Part (a) In which direction does the electric force act on the electrons? Downward. Correct! Part (b) In order to keep the electrons in a straight line, in which direction should the magnetic force act? ward. Correct! Part (c) What should the direction of the magnetic field be in order to produce the force in part (b)? Into the screen. Correct! Part (d) Calculate the numerical value of the magnitude of the electric force Fe, in newtons. cos(0) asin() atan() acotan sinh() sin tan() HOME cotanO a acos 4 5 6 cosh cotanhO O Degrees Radians BACKSPACE CLEAR Submit Hint I give up! Hints: 1% deduction per hint. Hints remaining: 1 Feedback: 1%deduction per feedback. .., Part (e) Calculate the magnitude of the magnetic field if the electron continues in a straight line, in tesla.

Problem 3: An electron beam is shot into a region where there is both an electric field pointing upward of magnitude E- 7.2 N/C, and a magnetic field, B, as shown in the figure. While moving through the region the electron beam stays in a straight line with speed v- 140 m/s Randomized Variables E = 7.2 N/C v= 140 m/s Part (a) In which direction does the electric force act on the electrons? Downward. Correct! Part (b) In order to keep the electrons in a straight line, in which direction should the magnetic force act? ward. Correct! Part (c) What should the direction of the magnetic field be in order to produce the force in part (b)? Into the screen. Correct! Part (d) Calculate the numerical value of the magnitude of the electric force Fe, in newtons. cos(0) asin() atan() acotan sinh() sin tan() HOME cotanO a acos 4 5 6 cosh cotanhO O Degrees Radians BACKSPACE CLEAR Submit Hint I give up! Hints: 1% deduction per hint. Hints remaining: 1 Feedback: 1%deduction per feedback. .., Part (e) Calculate the magnitude of the magnetic field if the electron continues in a straight line, in tesla.

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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Question

Problem 3: An electron beam is shot into a region where there is both an electric
field pointing upward of magnitude E- 7.2 N/C, and a magnetic field, B, as shown in the
figure. While moving through the region the electron beam stays in a straight line with
speed v- 140 m/s
Randomized Variables
E = 7.2 N/C
v= 140 m/s
Part (a) In which direction does the electric force act on the electrons?
Downward. Correct!
Part (b) In order to keep the electrons in a straight line, in which direction should the
magnetic force act?
ward.
Correct!
Part (c) What should the direction of the magnetic field be in order to produce the force in
part (b)?
Into the screen. Correct!
Part (d) Calculate the numerical value of the magnitude of the electric force Fe, in newtons.
cos(0)
asin()
atan() acotan sinh()
sin
tan()
HOME
cotanO a acos
4 5 6
cosh
cotanhO
O Degrees Radians
BACKSPACE
CLEAR
Submit
Hint
I give up!
Hints: 1% deduction per hint. Hints remaining: 1
Feedback: 1%deduction per feedback.
.., Part (e) Calculate the magnitude of the magnetic field if the electron continues in a straight
line, in tesla.

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