Recent content by al86

  1. A

    How much water boils when 7.67 kg of molten lead is poured into water?

    Homework Statement Suppose 7.67 kg of molten (liquid) lead at its melting point is poured into 764 g of water at 53.3o C. How much of the water boils? Homework Equations mc(detla T) = m(water)c(detla T). The Attempt at a Solution i m guessing i have to do the dollowing: mc(detla...
  2. A

    Angular Momentum of a candy dish

    Homework Statement A candy dish that rotates is called a lazy susan. This lazy susan is a uniform disk (mass 0.876 kg, radius 0.244 m), rotating about the center of the disk on a frictionless bearing. Suppose a large bug of mass 35.9 g sits at rest at on the edge of the empty lazy susan, which...
  3. A

    Block colliding with rod off-center on frictionless table

    Homework Statement A uniform thin rod (mass 2.74 kg, length 0.934 m) lies motionless on a frictionless, horizontal table. The rod is free to move in any direction on the table. A small block (a point particle of mass = 0.621 kg) slides across the table, moving at right angles to the rod, at...
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