Answers created by Anthony T.

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• A ball with a mass of #400 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #16 (kg)/s^2# and was compressed by #3/7 m# when the ball was released. How high will the ball go?
  
• A solid disk, spinning counter-clockwise, has a mass of #4 kg# and a radius of #3/7 m#. If a point on the edge of the disk is moving at #5/9 m/s# in the direction perpendicular to the disk's radius, what is the disk's angular momentum and velocity?
  
• How do you differentiate # sin (x/2)#?
  
• How do you find the equation of the circle with center at (-2,5) and radius of 5?
  
• What is the antiderivative of #5+cosx#?