![COLLEGE PHYSICS](https://www.bartleby.com/isbn_cover_images/9781464196393/9781464196393_largeCoverImage.gif)
COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Question
Chapter 11, Problem 15QAP
To determine
If landing planes should approach the runway from the west or the east if the wind is blowing from west to east?
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
Billboards are large outdoor hoardings that
are used by advertisers. However, their
large surfaces at heights off the ground
means they have to withstand strong winds
during their useful life span. There is a need
to model and analyze a billboard stand that
must be capable of supporting a 5- meter x
2-meter billboard at a height of 4 meters
above the ground. The billboard will have
to withstand crosswinds with speeds up to
10 m/s.
Please show calculations to acquire the
correct intended results for an
upvote...thanks.
Wind tunnels are used to measure the aerodynamic properties of prototype models. (a) if a fan
generates a wind speed of 25.0 mi/h inside an 8.75-ft2 section of a wind tunnel, what is the wind
speed as the air enters the narrower, 4.35-ft² section of the wind tunnel? (b) Explain why it is
often windier on city streets surrounded by tall buildings than in more open area
hangine
nd?
QUESTION # 4 (CLO 2)
(a) A house is to be designed to withstand hurricane-force winds. The maximum
wind velocity is v=(any value greater than 10 and less than 100 in m/s). The
surface area of the roof is A-450m. If the density of air is p-1.029kgm',
calculate the force that the roof can withstand casily?
Chapter 11 Solutions
COLLEGE PHYSICS
Ch. 11 - Prob. 1QAPCh. 11 - Prob. 2QAPCh. 11 - Prob. 3QAPCh. 11 - Prob. 4QAPCh. 11 - Prob. 5QAPCh. 11 - Prob. 6QAPCh. 11 - Prob. 7QAPCh. 11 - Prob. 8QAPCh. 11 - Prob. 9QAPCh. 11 - Prob. 10QAP
Ch. 11 - Prob. 11QAPCh. 11 - Prob. 12QAPCh. 11 - Prob. 13QAPCh. 11 - Prob. 14QAPCh. 11 - Prob. 15QAPCh. 11 - Prob. 16QAPCh. 11 - Prob. 17QAPCh. 11 - Prob. 18QAPCh. 11 - Prob. 19QAPCh. 11 - Prob. 20QAPCh. 11 - Prob. 21QAPCh. 11 - Prob. 22QAPCh. 11 - Prob. 23QAPCh. 11 - Prob. 24QAPCh. 11 - Prob. 25QAPCh. 11 - Prob. 26QAPCh. 11 - Prob. 27QAPCh. 11 - Prob. 28QAPCh. 11 - Prob. 29QAPCh. 11 - Prob. 30QAPCh. 11 - Prob. 31QAPCh. 11 - Prob. 32QAPCh. 11 - Prob. 33QAPCh. 11 - Prob. 34QAPCh. 11 - Prob. 35QAPCh. 11 - Prob. 36QAPCh. 11 - Prob. 37QAPCh. 11 - Prob. 38QAPCh. 11 - Prob. 39QAPCh. 11 - Prob. 40QAPCh. 11 - Prob. 41QAPCh. 11 - Prob. 42QAPCh. 11 - Prob. 43QAPCh. 11 - Prob. 44QAPCh. 11 - Prob. 45QAPCh. 11 - Prob. 46QAPCh. 11 - Prob. 47QAPCh. 11 - Prob. 48QAPCh. 11 - Prob. 49QAPCh. 11 - Prob. 50QAPCh. 11 - Prob. 51QAPCh. 11 - Prob. 52QAPCh. 11 - Prob. 53QAPCh. 11 - Prob. 54QAPCh. 11 - Prob. 55QAPCh. 11 - Prob. 56QAPCh. 11 - Prob. 57QAPCh. 11 - Prob. 58QAPCh. 11 - Prob. 59QAPCh. 11 - Prob. 60QAPCh. 11 - Prob. 61QAPCh. 11 - Prob. 62QAPCh. 11 - Prob. 63QAPCh. 11 - Prob. 64QAPCh. 11 - Prob. 65QAPCh. 11 - Prob. 66QAPCh. 11 - Prob. 67QAPCh. 11 - Prob. 68QAPCh. 11 - Prob. 69QAPCh. 11 - Prob. 70QAPCh. 11 - Prob. 71QAPCh. 11 - Prob. 72QAPCh. 11 - Prob. 73QAPCh. 11 - Prob. 74QAPCh. 11 - Prob. 75QAPCh. 11 - Prob. 76QAPCh. 11 - Prob. 77QAPCh. 11 - Prob. 78QAPCh. 11 - Prob. 79QAPCh. 11 - Prob. 80QAPCh. 11 - Prob. 81QAPCh. 11 - Prob. 82QAPCh. 11 - Prob. 83QAPCh. 11 - Prob. 84QAPCh. 11 - Prob. 85QAPCh. 11 - Prob. 86QAPCh. 11 - Prob. 87QAPCh. 11 - Prob. 88QAPCh. 11 - Prob. 89QAPCh. 11 - Prob. 90QAPCh. 11 - Prob. 91QAPCh. 11 - Prob. 92QAPCh. 11 - Prob. 93QAPCh. 11 - Prob. 94QAP
Knowledge Booster
Similar questions
- The Bernoulli effect can have important consequences for the design of buildings. For example, wind can blow around a skyscraper at remarkably high speed, creating low pressure. The higher atmospheric pressure in the still air inside the buildings can cause windows to pop out. As originally constructed, the John Hancock Building in Boston popped windowpanes that fell many stories to the sidewalk below. (a) Suppose a horizontal wind blows with a speed of 11.2 m/s outside a large pane of plate glass with dimensions 4.00 m 1.50 m. Assume the density of the air to be constant at 1.20 kg/m3. The air inside the building is at atmospheric pressure. What is the total force exerted by air on the windowpane? (b) What If? If a second skyscraper is built nearby, the airspeed can be especially high where wind passes through the narrow separation between the buildings. Solve part (a) again with a wind speed of 22.4 m/s, twice as high.arrow_forwardThe basic barometer can be used as an altitudemeasuring device in airplanes. The ground control reports a barometric reading of 753 mmHg while the pilot’s reading is 690 mmHg. Estimate the altitude of the plane from ground level if the average air density is 1.20 kg/m3.arrow_forwardThe highest altitude ever reached by a glider is 15460m. What is the approximate air pressure at that altitude?arrow_forward
- A building is to be designed to withstand hurricane-force winds. The maximum wind velocity is v=89 ms. The surface area of the roof is A=450m . If the density of air is ρ=1.027kgm3 , how much force must the roof supports be able to withstand?arrow_forwardIn what direction should an airplane fly in order to fly due north at 320 kph if the wind is blowing due west at 50 kph N 8⁰53’ W S 8⁰53’ E S 8⁰53’ W N 8⁰53’ Earrow_forwardThe density of air is 1.3 kg/m at sea level. From your knowledge of air pressure at ground level, estimate the height of the atmosphere. As a simplifying assumption, take the atmosphere to be of uniform density up to some height, after which the density rapidly falls to zero. (In reality, the density of the atmosphere decreases as we go up.) t O 1 km O 10 km O 100 km O 1000 km Need Help? Read Itarrow_forward
- A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is 250 m². Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force will be (Pair 1.2 kg/m³) =arrow_forwardThe rate of change of atmospheric pressure P with respect to altitude h is proportional to P, provided that temperature is constant. At 15°C the pressure is 101.3 kPa at sea level and 87.14 kPa at h = 1000 m. Answer the following questions. a) What is the atmospheric pressure at an altitude of 4000 m? Round to three decimal places. b) What is the atmospheric pressure at the top of Mount Greylock in Massachusetts, at an altitude of 1063 m? Round to three decimal places. CHECK ANSWER kPa NEXT kPaarrow_forwardIn 2017 Hurricane Irma, a category 5 hurricanehad winds up to 180 mph. Hurricanes winds often riproofs off buildings due to the difference in atmosphericpressures. What would be the force acting on a roof (13 mx 9.9 m).arrow_forward
- b)As the air sinks down, it is channeled through narrow valleys and so speeds up. In the desert the wind blows at about 5 miles per hour across an area of 100 square miles (width x height in the atmosphere). It is then squeezed into an area of just 20 square miles as it blows through narrow valleys in the mountains around Los Angeles. Assume that airflow must stay constant, what would the velocity of the air be? (2) Airflow = area * velocity c) Vegetation has to be heated up to 330 oC in order to ignite. Can you explain, using the physics we learned in class, why vegetation that contains more water does not ignite as easily as dry/dead vegetation? (2)arrow_forwardThe room you are sitting in has a height of 3.6 m. Taking the air pressure at the top (ceiling) as 100,000 Pa what is the air pressure at the bottom of the room? Note for air take the density= 1.2 kg/m³.arrow_forwardAn airplane has a mass of 2.1×106 kgkg , and the air flows past the lower surface of the wings at 81 m/sm/s . If the wings have a surface area of 1100 m2m2 , how fast must the air flow over the upper surface of the wing if the plane is to stay in the air? Express your answer to two significant figures and include the appropriate units.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781938168277/9781938168277_smallCoverImage.gif)
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
![Text book image](https://www.bartleby.com/isbn_cover_images/9780534408961/9780534408961_smallCoverImage.gif)
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781133104261/9781133104261_smallCoverImage.gif)
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781133939146/9781133939146_smallCoverImage.gif)
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning