Answers edited by Matt

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• A 4.0 kilogram object moving west at 8.0 meters per second is subjected to a force to the east for 1.5 seconds, slowing it down to a speed of 2.0 meters per second. What was the net force that was applied?
  
• Question #4b5f7
  
• What is the direction of the magnetic force on the electron? What is the magnitude of the magnetic force on the electron? What is the direction of the magnetic force on the proton? What is the magnitude of the magnetic force on the proton?
  
• Why, according to Newton's laws, can superman not fly?
  
• Question #7e103
  
• Question #5b47d
  
• Question #d2b05
  
• Question #0cdf5
  
• If an object is moving at #0 m/s# and accelerates to #60 m/s# over 5 seconds, what was the object's rate of acceleration?
  
• Question #4e99f
  
• Question #1bc4e
  
• A ball with a mass of #3# #kg # and velocity of #1 # #ms^-1# collides with a second ball with a mass of #5# #kg# and velocity of #- 8# #ms^-1#. If #25%# of the kinetic energy is lost, what are the final velocities of the balls?