Answers edited by Perilous G.

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• A ball with a mass of #7 kg# moving at #7 m/s# hits a still ball with a mass of #8 kg#. If the first ball stops moving, how fast is the second ball moving?
  
• Question #61e25
  
• How do you graph the line #y=4x+2#?
  
• What is the distance between #(3 ,( 5 pi)/12 )# and #(-2 , ( 3 pi )/2 )#?
  
• Question #cfd30
  
• A charge of #12 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #36 J# to #18 J#, what is the voltage between points A and B?
  
• Question #bfd0e
  
• In a survey of college students, 25% said they would be willing to pay more for improved parking conditions. If 225 students said they would NOT be willing to pay more, how many students were surveyed?