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Consider three spherical rocks having diameter of 10 cm (A), 20 cm (B), and 40 cm (C). The densities of these rocks are given to be 2,500 kg/m3. They were left to free-fall above a water stream having a uniform velocity profile (um=0.1 m/s). The stream has a depth of 1 m. Assume that these rocks reach their terminal velocity at the top of the water stream. Determine distance travelled by each rock.
The mechanism shown in the figure has been employed as a marine steering linkage called a Raphson's slide. O2B represents the tiller and AC is the actuating rod that is pinned to the slider (link 3) which slides along the tiller. If the absolute velo..
Room temperature atmospheric air is accelerated by a nozzle steadily from a low velocity to a velocity of 220 m/s. If the nozzle diameter decreases by a factor of 2:
for each process of a closed system show the initial and final states on a properly-labeled t-s diagram evaluate the
(a) Sketch the cycle on a p V diagram. (b) Calculate the net work for the cycle, in kJ. (c) Calculate the heat transfer for process 2 3, in kJ. (d) Calculate the heat transfer for process 3 1, in kJ. (e) Is this a power cycle or a refrigeration cy..
consider a large vessel divided into two chambers by a dividing nwall such as that described in lecture on 23 feb. the
a motorist decreases the speed of an automobile at a constant rate from 45 to 30 mih over a distance of 750 ft along a
a 50kg lid is placed on a 20cm diameter container to form a crude pressure vessel. the initial pressure is 1 atm and
A 1300 car is traveling along a straight road at 18 . Two seconds later its speed is 21. What is the magnitude of the net force acting on the car during this time?
a thin flat plate that is 0.2 m x 0.2 m on a side with rough top and bottom surfaces is placed in a wind tunnel so that
a tank of 50 ft3 volume contains saturated ammonia at a pressure of 200 lbfin2. initially the tank contains 50 liquid
The following is a diagram shows refraction of a light beam at the interface of two media. The incidence and refraction angles are measured to be 45 deg and 30 deg respectively. Will total reflection happen when the light beam shins from the top to t..
during the construction of a highway by-pass earthmoving equipment costing 40000 was purchased for use in transporting
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