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1 a rectangular block of concrete 3 ft times 3ft times 6 in has its 6- in side half buried at the bottom of a lake 23
it is desired to use a 075-m diameter beach ball to stop a drain in a swimming pool obtain an expression that relates
a watertight bulkhead 22 ft high forms a temporary dam for some construction work the top 12 ft behind the bulkhead
1 the dam shown below is 100 m wide determine the magnitude and location of the force on the inclined surface2 the
a cubical piece of wood with an edge l in length floats in the water the specific gravity of the wood is 090 what
1 the velocity vector in a two-dimensional flow is given by the expression v 10exnbsp 7xeynbspms when x is measured in
1 water is flowing through a large circular conduit with a velocity profile given by the equation v 91- r216 fps what
salt water containing 192 lbgal of salt flows at a fixed rate of 2 galmin into a 100-gal tank initially filled with
two very long parallel plates of length 2l are separated a distance b the upper plate moves downward at a constant rate
water flows steadily through the piping junction entering section 1 at 00013 m3nbsps the average velocity at section 2
the jet pump injects water at v1nbsp 40 ms through a 76 cm pipe and entrains a secondary flow of water v2nbsp 3 ms in
1 the hypodermic needle shown below contains a liquid serum rho 1 gcm3 if the serum is to be injected steadily at 6
rework given problem if the plates are circular and have radius lproblem -two very long parallel plates of length 2l
if in the system for problem the total drag on the object is measured to be 800 nm of length normal to the direction of
rework problem if the exit velocity profile is given bywhen y is measure vertically from the center line of the water
assignment projecttitle design of control systemsproblemdesign a closed-loop controller for a servo system motor with
a stationary jet engine is shown air with a density of 00805 lbmft3nbspenters as shown the inlet and outlet
a determine the magnitude of the x and y components of the force exerted on the fixed blade shown by a 3-ft3nbsps jet
1 the pump in the boat shown pumps 6 ft3nbsps of water through a submerged water passage which has an area of 025
at the end of a water pipe of 3-in diameter is a nozzle that discharges a jet having a diameter of 1frac12 in into the
a water jet pump has an area ajnbsp 006 ft2nbspand a jet velocity vjnbsp 90 fps which entrains a secondary stream of
1 if the plate shown is inclined at an angle as shown what are the forces fxnbspand fynbspnecessary to maintain its
if the shock-wave velocity in problem is approximated by the speed of sound determine the pressure change causing a
1 consider the differential control volume shown below by applying the conservation of mass and the momentum theorem
a dam discharge into a channel of constant width as shown it is observed that a region of still water backs up behind