Recent content by kt102188

  1. K

    Force to hold nozzle with given flow rate and velocity

    Homework Statement A fire hose discharges water at a rate of 16.0 kg/s with a speed of 20 m/s. What magnitude of force is needed to hold the nozzle stationary? Homework Equations Impulse= Change in Momentum, Momentum (p)= mv, velocity final=velocity inital + at The Attempt at a...
  2. K

    Gravitational Potential Energy of the earth

    Thank you! I was totally thinking of this wrong. Actually using the radius of Earth got the right answer.
  3. K

    Gravitational Potential Energy of the earth

    Homework Statement How high above the surface of the Earth must a mass be located so its gravitational potential energy is only 17.00% of its value on the surface? Homework Equations PEg=(-GMm)/r, PElocal= mgy where y is height the object can fall The Attempt at a Solution...
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