Answers edited by Jack Oneill

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• Water rushes down a river with a velocity of 2.4 m/s. Four seconds after leaving the rapids the velocity of the water has decreased to just 0.6 m/s. What is the deceleration of the water?
  
• Question #d71b2
  
• Which two of the first thirty-six elements would you expect to from bond with the hreatest ionic character? Write the electronic configuration(s,p) for the ions involved?
  
• How does ionization energy change with atomic radius?
  
• How do you solve #x(x+6)=-15# using the quadratic formula?
  
• How do you solve #m- 3= \frac { 4} { 6} m - 2#?