Chapter 10 Fluids 4 phases of matter solid, liquid, gas, plasma. Liquids and gases will collectively be referred to as fluids.

10-1 Density We will use the symbol  for density  = m/v See example 10-1 p276 See density chart p 276

10-2 Pressure in Fluids Pressure=P=F/A P= F/A=mgh/A P=F/A=  Agh/A so P=  gh See Example 10-2 p278

10-3 Atomospheric Pressure 1 atm= x10 5 N/m 2 = x10 5 pa The SI unit for pressure is the Pascal 1 bar = 100 kPa Guage pressure is pressure measured at a local guage. To get absolute pressure, one must add the atomospheric pressure, P a, to gauge pressure.

Homework P304 pr#1-11 due Thursday BOP.