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`?