# ch 6 hw 1 - = 1152 J The runner turns around and runs in...

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Web Assign Ch6 HW1 f10 (Homework) Ashlyn Baum Physics 303K, section B, Fall 2010 Instructor: Jim Chelikowsky Current Score : 20 / 20 Due : Wednesday, October 6, 2010 11:30 PM CDT 1. 4/4 points Question: MI3 6.2.X.001 An electron has mass 9e-31 kg. If the electron 's speed | | is 0.954 c (that is, | |/ c = 0.954 ), what are the following values? particle energy = 2.7e-13 J rest energy = 8.1e-14 J kinetic energy = 1.89e-13 J 2. 2/2 points Question: MI3 6.2.X.042 A runner whose mass is 64 kg runs in the +x direction at a speed of 6 m/s. What is the kinetic energy of the runner? K
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Unformatted text preview: = 1152 J The runner turns around and runs in the -x direction at the same speed. Now what is the kinetic energy of the runner? K = 1152 J 3. 1/1 points Question: MI3 6.2.X.043 A baseball of mass 145 g is thrown with a velocity of &lt; 24 , 20 , -12 &gt; m/s. What is the kinetic energy of the baseball? The due date for this assignment is past. Your work can be viewed below, but no changes can be made. View Key Page 1 of 1 Ch6 HW1 f10 11/21/2010 http://www.webassign.net/v4cgiashlyn@utexas/student.pl?k=20101121222654ashlyn@ut. .....
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## This note was uploaded on 11/21/2010 for the course PHY 56665 taught by Professor Chelikowsky during the Fall '10 term at University of Texas at Austin.

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