Recent content by Nicholasw

  1. N

    Determine the Gravitational potential energy

    Question A Skier with a mass of 65.0 kg. Including equipment, starts from rest and accelerates down a slope. The slope is 27.0 m higher at the top than the bottom. The work done on the skier by the kinetic friction is 1.20 x 10^4 J. How would I determine the Gravitational potential energy...
  2. N

    Apply the law of conservation of energy to determine the ball's speed

    Okay Thanks. I will do that
  3. N

    Apply the law of conservation of energy to determine the ball's speed

    What formula would I use to solve for a and b? A 0.20-kg ball is held at rest 2.2 m above the ground, and then it is dropped. Apply the law of conservation of energy to determine the ball's speed after it has fallen (a) 1.1 m and (b) 2.2 m. Ignore air resistance. Answers (a) 4.6 m/s (b)...
  4. N

    Solving Equations: Quadratic & More!

    How would I solve this equation: 3(x-3) + 4x+7= 5x-3 And How would I solve these Quadratic Equation: x^2 + 7x + 12 = 0 3x^2 - 10x + 8 = 0 8y^2 + 18y = 5 = 0 Thanks.
  5. N

    Solve (3 3/8) to the power of -1

    How would I solve these equation: (3 3/8) to the power of -1 3X / X-1 + 4 = X / X+1 5 / X+2 + X(X+3) / X (Square) - 4 I been really stuck on these. Thanks