Exam (elaborations)
_Chapter 9.
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- LPSP1202 - Chapitre 12 - Troubles Du Sommeil
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Chapter 9The same force is applied to two cylinders that contain air. One has a
piston with a large area, and the other has a piston with a small area. In
which, if either, cylinder will the pressure be greater?-✔✔the small area
cylinder
If you filled an airtight balloon at the top of a mountain, how, if at all, would
the balloon change as you descended the mountain?-✔✔It would contract.
If the output piston in a hydraulic pump exerts a greater force than one
applied to the input piston, how is the pressure at the output piston
compared with the input piston?-✔✔the same
A large bird lands on a rowboat that is floating in a swimming pool. How will
the water level in the pool change when the bird lands on the boat?-✔✔it
will increase
The lift on airplane wings is explained by-✔✔Bernoulli's principle.
A force of 87 N pushes down on the movable piston of a closed cylinder
containing a gas. The piston’s area is 0.4 m2. What is the pressure
produced in the gas?-✔✔217.5 Pa
With the temperature held constant, the pressure of a gas in a cylinder with
a movable piston is increased from 5 kPa to 40 kPa. The initial volume of
the gas in the cylinder is 0.75 m3. What is the final volume of the gas after
the pressure is increased?-✔✔.0938 m^3
In a hydraulic system, a force of 555 N is exerted on a piston with an area
of 0.002 m2. The load-bearing piston in the system has an area of 0.3 m2.
a) Calculate in kPa the pressure in the hydraulic fluid induced by the
applied pressure.
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