A lawn sprinkler with three identical arms is used to water a garden by rotating in a horizontal plane by the impulse caused by water flow. Water enters the sprinkler along the axis of rotation at a rate of 60 L/s and leaves the 1.5-cm-diameter nozzles in the tangential direction. The bearing applies a retarding torque of T0 = 50 N m due to friction at the anticipated operating speeds. For a normal distance of 40 cm between the axis of rotation and the center of the nozzles, determine the angular velocity of the sprinkler shaft.
EvolvingOceans:Lecture13/11/1411:04AM o 71%oftheEarth’ssurfaceiscoveredbywater.Biggestreservoirof water. o Oceansabsorbahighamountofenergythatwereceivefromthesun. Takesawayfromtheenergythatthecontinentsreceive,heat regulation. o Heatcapacity:ex.Walkingonthehotsandandthenputtingyourfeet inthewater,metalwithhighheatcapacity,waterwithlowheat capacity. o AKAittheamountofenergyittakestoheatup o Oceanography thescientificstudyoftheoceans,withthegoalof understandingtheprocessesandphenomenathattakeplaceinthe marinerealm. TheBeginning • Thefirstoceanographerswerereally“cartographers”.Tryingto findroutestogetthemselveshome(firstPolynesians) •