A man pushes on the side of a box without moving it. As he pushes harder A) the static friction will increase
B) the static friction might increase or decrease depending on the side of the box the man was pushing
C) the static friction will decrease
D) the static friction will stay constant

For a solution of ethanol and water at 20°c that has 0.2 mole fraction ethanol, the partial molar volume of water is 17.9 cc/mole and the partial molar volume of ethanol is 55.0 cc/mole. what volumes of pure ethanol and water are required to make 1 liter of this solution? at 20°c the density of ethanol is 0.789 g/cc and the density of water is 0.998 g/cc.