Chapter 10: Q2P (page 260)
(I) What is the approximate mass of air in a living room 5.6× 3.6× 2.4m?
The mass of the air is 62.4 Kg.
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
(I)Show that Bernoulli’s equation reduces to the hydrostatic variation of pressure with depth (Eq. 10-3b) when there is no flow\(\left( {{v_1} = {v_2} = 0} \right)\).
If one material has a higher density than another, must the molecules of the first be heavier than those of the second? Explain.
An airplane has a mass of \({\bf{1}}{\bf{.7 \times 1}}{{\bf{0}}^{\bf{6}}}\;{\bf{kg}}\) and the air flows past the lower surface of the wings at 95 m/s. If the wings have a surface area of \({\bf{1200}}\;{{\bf{m}}^{\bf{2}}}\), how fast must the air flow over the upper surface of the wing if the plane is to stay in the air?
(II)What gauge pressure in the water pipes is necessary if a fire hose is to spray water to a height of 16 m?
You put two ice cubes in a glass and fill the glass to the rim with water. As the ice melts, the water level
(a) Drops below the rim.
(b) Rises and water spills out of the glass.
(c) Remains the same.
(d) Drops at first, then rises until a little water spills out.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
