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Apply the grid method (p. 11) to each situation.
a. What is the change in air pressure in pascals between the floor and the ceiling of a room with walls that are 8 ft tall.
b. A diver in the ocean (S 1.03) records a pressure of 2 atm on her depth gage. How deep is she?
c. A hiker starts a hike at an elevation where the air pressure is 940 mbar, and he ascends 1200 ft to a mountain summit. Assuming the density of air is constant, what is the pressure in mbar at the summit?
d. Lake Pend Oreille, in northern Idaho, is one of the deepest lakes in the world, with a depth of 350 m in some locations. This lake is used as a test facility for submarines.
What is the maximum pressure that a submarine could experience in this lake? e. A 60 m tall standpipe (a standpipe is vertical pipe that is filled with water and open to the atmosphere) is used to supply water for fire fighting. What is the maximum pressure in the standpipe?
Using Thoma's coefficient and the data in Figure 9.21, investigate whether the turbine is likely to experience cavitation. The vertical distance between the runner and the tailrace is 2.5 m, the atmospheric pressure is 1.0 bar, and the water tempe..
consider an ideal vapor-compression refrigeration cycle. the refrigerator employs refrigerant 134a as the working fluid
a group of students is developing a plan to deliver water from a lake to a downhill village. the students plan to use a
honda civic 2012 model has an epa rating of 28 mpg city and 39 mpg highway. what is the thermal efficiency of honda
How well can you can predict overhead costs on the basis of these variables with a linear regression equation? Why might you be disappointed with the results?
an equiangular strain gage rosette is mounted on a free and unloaded surface of a part made of steel. when loaded the
Determine the moment of inertia of the drum and the angular acceleration, the time taken, the work done, the average power developed by the driving motor.
A container filled with 97 kg of liquid water at 95ºC is placed in a 82-m3 room that is initially at 13ºC and 1 atm. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room.
steam enters a well-insulated turbine operating at steady state at p14mpa t1320c and a velocity v110ms. the steam
electronic components are mounted on the inner surface of a horizontal cylindrical duct whose inner diameter is 0.2m.
a rigid 1.0 m3 tank contains water initially at 120degc with 50 liquid and 50 vapor by volume. a pressure-relief valve
Calculating electrical power from a geothermal Resource, A geothermal well is producing 9000kg/second from a hot water basin at 200 ºC [enthalpy of 800 KJ/Kg].
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