CH 20 HW 3

# CH 20 HW 3 - What is this electric force? E = &amp;lt;...

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CH 20 HW 3 S2009 (Homework) Current Score: 11/11 Due: Monday, March 23, 2009 01:00 PM EDT About this Assignment Extension Requests Question Points 1 2 9 2 Total 11/11 Description Magnetic and electric force Instructions Reading: Sec 20.1-20.3 The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. 9/9 points All Submissions Notes Question: MI2 20.X.08.01 Question part Points Submissions 1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1/3 1/3 2/3 1/3 1/3 1/3 1/3 1/3 1/3 Total 9/9 An electron travels with velocity < 2 e5, 0, 0> m/s. It enters a region in which there is a uniform magnetic field of < 0, 0.6 , 0> T.

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What is the magnetic force on the electron? B = < 0 0 , 0 0 , -1.92e-14 -1.92e-14 > N Despite the magnetic force, the electron continues to travel in a straight line at constant speed. You conclude that there must be another force acting on the electron. Since you know there is also an electric field in this region, you decide that the other force must be an electric force.
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Unformatted text preview: What is this electric force? E = &amp;lt; 0 , 0 , 1.92e-14 1.92e-14 &amp;gt; N What is the electric field in this region that is responsible for the electric force? = &amp;lt; 0 , 0 , -1.2e5-1.20e+05 &amp;gt; N/C 2. 2/2 points All Submissions Notes Question: MI2 20.X.08.02 Question part Points Submissions 1 2 1 1 1/3 3/3 Total 2/2 A proton traveling with speed 4 10 5 m/s in the +y direction passes through a region in which there is a uniform magnetic field of magnitude 0.6 T in the +z direction. You want to keep the proton traveling in a straight line at constant speed. To do this, you can turn on an apparatus that can create a uniform electric field throughout the region. What electric field should you apply? magnitude: | | = 2.4e5 2.40e+05 V/m direction: -x-x Home My Assignments Extension Request...
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## This note was uploaded on 02/13/2010 for the course PY PY208 taught by Professor Kohlmyer during the Spring '09 term at N.C. A&T.

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CH 20 HW 3 - What is this electric force? E = &amp;lt;...

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