Answers created by Irene

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• How fast, and in which direction, must the person run to catch the ball at the level from which it was thrown?
  
• Why is normal force acting down in a circular motion when the object is at top of the circle?
  
• How do you find the amplitude, period and graph #y=sin(4theta)#?
  
• Why are metallic solids so good at conducting electricity, but ionic solids are non-conductors?
  
• How do you solve the system of equations #x= 6y - 7# and #x + 6y = 9#?
  
• Question #c306a