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A high-speed boat is powered by a water jet pump engine, similar to a jet engine on airplanes. The engine takes in water at the bow through a tube with diameter 1 ft, and the water is pumped out the stern of the boat through a 3-in diameter tube. The flow rate is 5000 gpm. Neglecting any frictional loss, find: (a) the thrust force of the engine; (b) the maximum speed of the boat, if the drag coefficient is 0.005 with a corresponding projected area of 500 ft2; (c) If the pump is 100% efficient, how many hp are required?
A particle travels around a circular path having a radius of 80m. It is initially traveling with a speed of 10 m / s and its speed then increases at a rate of v = (0.05v) m /s2. Determine the magnitude of the particle's acceleration four seconds late..
The wheel of a crane lift is rolling on a flat rail. The radius of the wheel is 4 in, the contact length and force are 2.5 in and 1 ton respectively, and E = 30 MPa and ν = 0.3 for both parts. Determine (a) the maximum contact pressure, (b) the wi..
figure 2 gives a pictorial view of a slotted guide. draw the following views in third angle ltbrgtprojection. ltbrgta a
the acceleration due to gravity at an altitude y above the surface of the earth is given byymnbspnbspnbsp
a flow of 0.5 kgs superheated steam at 5 mpa 400c and a flow of liquid water at 5 mpa 40c are mixed. if saturated
Consider the flow of a uniform stream of speed V in the x-direction and a sink of strength Q at the origin. Find the stagnation point(s) and the equation of the stagnation streamline. Sketch (freehand) the flow streamlines
Two kilograms of Refrigerant134a, initially at 2 bar and occupying a volume of 0.12 m3, undergoes a process at constant pressure until the volume has doubled. Kinetic and potential energy effects are negligible. Determine the work and heat transfe..
A temperature sensor's sensitivity is given as 5mv/0.1oF. The sensor can measure from -100oF (that is negative 100F) to 150oF. Find out the sensor possible output values for a measured value of 30F for the following accuracies: ±0.5% of FS error/ ±..
a 150-lbm astronaut took his bathroom scale aspring scale and a beam scale compares masses to themoon where the local
consider a 210mw steam power plant that operates on a simple rankine cycle. steam enters the turbine at 10mpa and 500oc
water vapor initially at 3.0 mpa and 300degc is contained within a piston-cylinder. the water is cooled at constant
A mass transfer tower operating at 1 atm and 300 K uses water, which enters free of ammonia at the top, to reduce the ammonia (NH3) concentration in air exhausted from a reactor. At one plane (W) in the tower, the concentrations of ammonia in the liq..
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