Q. What mass (in grams) of steam at 100°C must be mixed with 403 g of ice at its melting point, in a thermally insulated container, to create liquid water at 87°C? The specific heat of water is 4186 J/kg•K. The latent heat of fusion is 333 kJ/kg, and the latent heat of vaporization is 2256 kJ/kg.
Q. When catching a baseball, a catcher's glove moves by 9 cm along the line of motion of the ball. If the baseball exerts a force of 440 N on the glove, how much work is completed by the ball?