View Policies Current Attempt in Progress The force, F, of the wind blowing against a building is given by F = CopV²A/2, where Vis the wind speed, p the density of the air, A the cross-sectional area of the building, and CD is a constant termed the drag coefficient. Determine the dimensions of the drag coefficient x, y, and z in the expression CD = M*L'T². X = i y = Z= i i eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer

View Policies Current Attempt in Progress The force, F, of the wind blowing against a building is given by F = CopV²A/2, where Vis the wind speed, p the density of the air, A the cross-sectional area of the building, and CD is a constant termed the drag coefficient. Determine the dimensions of the drag coefficient x, y, and z in the expression CD = M*L'T². X = i y = Z= i i eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.18P: The drag on an airplane wing in flight is known to be a function of the density of air (), the...

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Given: The plane accelerates in its current trajectory with a= 100 m/s^2 Farag Angle theta= 5° W=105 kips F_drag= 80 kips m= 1000 lbs Find: F_thrust, F_lift Please include the KD. Fthrust Futel t Fueight 000 BY NC SA 2013 Michael Swanbom
Problem Solving: )An object falls from rest in a medium offering a resistonce. The velocity of the object hefore the ohject reaches the ground is given by the differential egua- tion dv/t + V% = 32, t/sec. uhat is the veloaty of the okject one second after it falls ?
Wind power is defined as the use of air flow through wind turbines to provide the mechanical force to generate electricity. Wind power is an alternative to burning fossil fuels, and is renewable and produces no greenhouse gas emissions during operation. Modern horizontal-axis wind turbines often use three blades. Theoretically, the maximum power P (unit: watts) that a three-blade wind turbine can extract from the wind power can be calculated as: P = pAv³C₁. . (Equation 1) where p is the air density (kg/m³), A is the sweep area of the turbine (m²) and can be calculated from the length of the turbine blades, and v is the wind speed (m/s). Cp is the power coefficient that is unique to each turbine type. This coefficient represents the amount of kinetic energy from the wind that is captured by the turbine. From the Betz's limit law we know that the best power conversion possible is Cp,max = 0.59. Part 1 Given the following data: Blade length /= 50 m Air density p= 1.5 kg/m³ Power…
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HW_5_01P.pdf PDF File | C:/Users/Esther/Downloads/HW_5_01P.pdf 2 Would you like to set Microsoft Edge as your default browser? Set as default To be most productive with Microsoft Edge, finish setting up your Complete setup Maybe later browser. CD Page view A Read aloud V Draw F Highlight 2 of 3 Erase 4. Two blocks mĄ = 3.0 kg and mB = 8.0 kg are on inclines and are connected together by a string as shown in the figure below. The coefficient of kinetic friction between each mass and its incline is uk 0.25. MB m MA 51° 21° Copyright © 2008 Pearson Education, Inc. (a) If ma moves up, and mp moves down, determine their acceleration. (b) What minimum value of µk will keep the system from accelerating? 1:50 PM e Type here to search C A N 2/9/2021
YouTube Mall Over... Leeds International... M1 Questions by To... Question Completion Status: QUESTION 2 A car of mass 750 kg moves along a stretch of road which can be modelled as a line of greatest slope of a plane inclined to the horizontal at 30°. As the car moves up the roa for 500 m its speed reduces from 20 ms-¹ to 15 ms-¹. Calculate: a the loss of kinetic energy of the car 65,625) 66,625 67,625) O 68,625)
. Suppose that a wind turbine with a blade length 40 m and power coefficient of 0.27 installed on shore. The air density is 1.2 kg/m'. In a certain day the wind speed was about 13 m/s in the first 8 hours of that day. Then it dropped to 8.5 m/s for the next 10 hours and finally became 7 m/s. Calculate the followings 1) The wind power in each time period of that day. 2) The power generated in each time period of that day. 3) The maximum theoretical generated power in each time period of that day. 4) What is the approximate cost of power generated in this day?
Simulink Assignment- Filling a Tank In fluid mechanics, the equation that models the fluid level in a tank is: dh 1 -(min Ap - mout) dt h is the water level of the tank A is the surface area of the bottom of the tank pis the density of the fluid Mim and mout are the mass flow rates of water in and out of the tank, the flow out is a function of the water level h: 1 mout Vpgh Ris the resistance at the exit. Assume that the exit is at the bottom of the tank. g is the gravitational acceleration What to Do: 1. Build a model in Simulink to calculate the water level, h, as a function of time. Your model should stop running as soon as the tank is full. 2. Assuming the height of the tank is 2 meters, after how many seconds does the tank fill up? Use the following constants to test your model: • A: area of the bottom of the tank = 1 m? • p: the density of fluid = 1000 kg/ m? • R: the resistance at the exit = 3 (kg.m)-1/2 • ho: Initial height of the fluid in the tank = 0 m • g: the gravitational…
Tires are one of the most frequently encountered applications of the gas laws that we never think about. We fill our tires with air, or with nitrogen, but it always works out the same way. Enough gas goes in, the tire inflates, and then the pressure starts going up. In this assignment, we’ll be investigating the ways that the gas laws impact how we treat our tires. Q1. I have good information that in Fast 29, Dominic Toretto (Vin Diesel) will need to refill a tire quickly during a dramatic moment. For this reason, he has a 3.00 L tank of compressed air that is under 2.7892*103 mmHg and is kept cool in dry ice at -35.0 °C. When Dom hooks his compressed air up to his completely empty 10.50 L tire at 39.2 °C and lets it run, what will his final tire pressure be, in atm? Assume all the air is transferred into the tire. Is his tire pressure above the 2.31 atm that he needs to save the planet/his family/his crew? Q2. Your car tire pressure sensor looks to see when your tire pressure…
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Calculate the amount of energy consumed by a 75kg person jumping up 70 cm for 10 minutes at a rate of one jump/second, assume a muscle efficiency of 20%. [Hint: 1kcal=4184 J] Oa 376 kcal Ob. 247 kcal Oc 123 kcal Od.411 kcal