Answers created by Md H S Shohrawardy

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• If a 600-N woman sits on the floor, how much force does the floor exert on her?
  
• A charge of #-2 C# is at #(3, -7 )# and a charge of #1 C# is at #(-3 , 4 ) #. If both coordinates are in meters, what is the force between the charges?
  
• How much work does it take to raise a #3 kg # weight #81 m #?
  
• A projectile is shot at an angle of #pi/3 # and a velocity of # 5 m/s#. How far away will the projectile land?
  
• What is the kinetic energy of a #16 kg# object moving at #4/3 m/s#?
  
• What is the dot product of #<-2,5,-7># and #<8,-3,1>#?
  
• Question #7574f
  
• What is #|| <4, 9, 7 > - < 9, -1, 2> ||#?
  
• If an object is dropped, how fast will it be moving after falling #12 m#?
  
• A ball with a mass of #9 kg# moving at #14 m/s# hits a still ball with a mass of #18 kg#. If the first ball stops moving, how fast is the second ball moving?