Physics, 17.07.2019 22:30 hardwick744
Asubmarine is powered by a nuclear reactor that consists of the reactor coolant, steam generation and other support systems that supply steam to the engine room. the pressurized water reactor (pwr) uses 20-45% enriched uranium-235 fuel to produce 165 mw of power, driving two 26 mw steam turbines that generate electricity and drive the propeller shaft the submarine has a displacement of 19800 tons submerged, crew of 105, length of 185 m and width of 12 m. calculate the speed of the submarine when surfaced and submerged in kn (knots) or km/h. a) use the pwr data to determine amount of power generated & use shaft work correlation to calculate the submarine propulsion when surfaced & submerged b) the speed of the submarine must be realistic as the fastest submarine speed recorded is 32 kn. show all necessary calculations c) specify no of screws/blades from your calculation
Answers: 3
Physics, 21.06.2019 16:00
28. a stone is projected at a cliff of height h with an initial speed of 42.0 mls directed at angle θ0 = 60.0° above the horizontal. the stone strikes at a, 5.50 s after launching. find (a) the height h of the cliff, (b) the speed of the stone just before impact at a, and (c) the maximum height h reached above the grou
Answers: 1
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Physics, 22.06.2019 22:00
On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m
Answers: 1
Asubmarine is powered by a nuclear reactor that consists of the reactor coolant, steam generation an...
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