i really need your help , there is three question in 8 items that i cant really solve hope you could help,,
1) a golf course sprinkle system discharges a water from a horizontal pipe a a rate of 7200 cm cube/s. At one point of the pipe, where the radius is 4.00 cm, the water's absolute pressure is 2.40 x 10 to the 5th Pa. At a second point in the pie, the water passes through a constriction where the radius is 2.00 cm. what is the water's absolute pressure as it flows through this constriction?
2) A 78-kg person an apparent mass of 54-kg (because of buoyancy) when standing in water that comes up to the hips. Estimate the mass of each leg. Assume that the body has SG= 1.00
3)A 48.0-kg piece of wood floats in water but is found to sink in alcohol (SG=0.79) in which it has an apparent mass of 0.047 kg. What is the SG of the wood?
thank you hope you could help,,
1) a golf course sprinkle system discharges a water from a horizontal pipe a a rate of 7200 cm cube/s. At one point of the pipe, where the radius is 4.00 cm, the water's absolute pressure is 2.40 x 10 to the 5th Pa. At a second point in the pie, the water passes through a constriction where the radius is 2.00 cm. what is the water's absolute pressure as it flows through this constriction?
2) A 78-kg person an apparent mass of 54-kg (because of buoyancy) when standing in water that comes up to the hips. Estimate the mass of each leg. Assume that the body has SG= 1.00
3)A 48.0-kg piece of wood floats in water but is found to sink in alcohol (SG=0.79) in which it has an apparent mass of 0.047 kg. What is the SG of the wood?
thank you hope you could help,,