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Problem 3: Aerodynamics Consider a UPS delivery van. Part A Is this vehicle streamlined? (yes/no) Part B Which drag force will be dominant, friction drag or pressure drag, and why? (<25 words) Part C By what percentage does the speed increase from 55 to 75 mph? [%] Centr Part D By what percentage does the drag force increase from 55 to 75 mph? Assume air as given by the ICAO standard atmosphere at an elevation of 5,000 ft. Assume the aerodynamics of the truck can be predicted by a disk with diameter 9.0 ft.

-Sear x dynamics systems questions 1[1 x Week 15-Mechanical (Tutorials x + | C:/Users/40332698/AppData/Local/Packages/microsoft windowscommunicationsapps_8wekyb3d8bbwe/LocalState/Files/SO/145/Attachments/dynamics%... Q - +3 Page view A Read aloud Add textDraw Highlight V Erase ate the 3/104 The car is moving with a speed vo= 105 km/h up the 6-percent grade, and the driver applies the brakes at point A, causing all wheels to skid. The coefficient of kinetic friction for the rain-slicked bogne-road is = 0.60. Determine the stopping distance ed ISAB. Repeat your calculations for the case when the booga car is moving downhill from B to A. the case -8.0 ai noilsi' SA noitisoq de JDT mot gainnige ge = $1 bacilyon A S → vo 6 search 10. $ R F T V 25 % 5 T G B O Ai O A 6 Y H N & 7 U J Fa ★ 8 M 1 K FO 100 9 prt sc F10 O L ) O home P ; B A end F12 { ? + insert } 1 To 6 9°C Cloudy DENG ^ 7

The drag force of a new sports car is to be predicted at a speed of 65 mi/h at an air temperature of 25 C. Automotive engineers build a 0.333333333333333 scale model of the car to test in a wind tunnel. The temperature of the wind tunnel air is also 25 C. Determine how fast (in mi/h) the engineers should run the wind tunnel to achieve similarity between the model and the prototype.

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

While using the Buckingham pi theorem to obtain non-dimensional groups, the repeated variables are chosen to be density, length and velocity and the non-repeat variable is angualr velocity. What is the non dimensional group that will be found in the form of : Non dimensional group= angular velocity x density ______x length ______x velcoity ________

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M Inbox - wep10@zips.uakron.edu O My Akron Experience - The Univ B Homepage - Statics 801 O Pearson MyLab and Mastering b The equivalent resultant force, di x Course Home A https://openvellum.ecollege.com/course.html?courseld=16245503&OpenVellumHMAC=67fab398401alafde96db3b49e605db9#10001 O My Courses KAssignment 10o Course Home Problem 4.137 3 of 4 Syllabus I Review Scores Replace the three forces acting on the plate by a wrench. Suppose that FA = {450i}N, FB = {-350k} N, and Fc = {300j} N. (Figure 1) Part B eТext Determine the couple moment of the wrench. Express your answer to three significant figures and include the appropriate units. Enter positive value if the sense of direction of the couple moment is the same as that of the resultant force and negative value if the sense of direction of the couple moment is opposite to that of the resultant force. Study Area Document Sharing TH HẢ ? User Settings Value Units Course Tools > Submit Previous Answers Request Answer X Incorrect; Try…

Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... Scores ■Review Determine the maximum constant speed at which the pilot can travel, so that he experiences a maximum acceleration an = 8g = 78.5 m/s². Express your answer to three significant figures and include the appropriate units. μΑ v = Value Units Submit Request Answer Part B ? Determine the normal force he exerts on the seat of the airplane when the plane is traveling at this speed and is at its lowest point. Express your answer to three significant figures and include the appropriate units. о HÅ N = Value Submit Request Answer Provide Feedback ? Units Next >

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= MMB 241 Tutorial 2.pdf 1 / 3 75% + + Tutorial z Topic: Kinematics of Particles:-. QUESTIONS 1. Use the chain-rule and find y and ŷ in terms of x, x and x if a) y=4x² b) y=3e c) y = 6 sin x 2. The particle travels from A to B. Identify the three unknowns, and write the three equations needed to solve for them. 8 m 10 m/s 30° B x 3. The particle travels from A to B. Identify the three unknowns, and write the three equations needed to solve for them. A 40 m/s 20 m B 1

part a) An air ship is to operate at 20 m/s in air at standard conditions. A model is constructed to 1/20 scale and tested in a wind tunnel at the same air temperature to determine drag. What criterion should be considered to obtain dynamic similarity? part b) If the model is tested at 75 m/s. what pressure should be used in the wind tunnel? If the model drag force is 250 N, what will be the drag of the prototype?

Problem 1: (50 points) In Avengers 2, Captain America's improved shield is made from unobtainium, a new material that will soon be available in a store near you. Unobtainium has the normal stress- strain diagram shown. The proportional limit, the elastic limit and the yield point are identical in this material. o [MPa] 2001 175 150 125 100 Fig.1 Normal stress-strain 75 50 25 0 0. 0.05 0.1 0.15 0.2 0.25 Unobtainium has a Poisson's ratio of 0.3. a. [6pts] Identify the yield point oy, the ultimate stress ou and the fracture stress of. Include units. c. [25pts] A bar of unobtainium has a length of 1.5 m, a width of 100mm and a height of 50 mm, as shown. The cross-sectional area is 50mm 100mm = 5 x 10-³m². The bar is subjected to an axial force of 375 kN. Find the normal stress in a cross-section of the bar. b. [5pts] How do you find Young's modulus from this graph? Find its value with units. whesta fins dus al hoss P = 375 KN 1.5 m 0.3 50 mm 100 mm & [mm/mm] Is the material within its…

Hey! I'm working through the lab on Archimedes Principle and Buoyancy. I need someone to check my work, as my actual and theoretical values between question 2 and 3 are... pretty different from one another. should I be using a negative value for my buoancy? Thank you!

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Analyze the free-body diagram, given the coefficients of static and kinetic friction. Determine whether the block will slide and the net force on the system. static kinetic Hs = 0.25 friction is not shown, but must be incuded in calculations Hk = 0.2 fs,max = 50 %3D fr = W2 [N] slide? friction [N] friction direction | Fnel [N] 40 yes, down-righ 40 up-left v 22 W.-102 W2 W = 200N 50 up-left v (see table) 80 no W = 225N 50 down-righ no 120 18 40 down-righ 160 yes, up-left v 58 40 down-righ v yes, up-left annot be de 200 check answers

6:38 ul LTE Screenshot_20201226-183601_Driv... Solar Probe Plus, Working with Angular Diameter The Solar Probe Plus mission will be launched in 2018 for a rendezvous with the sun in 2024. To lose enough energy to reach the sun, the spacecraft will make seven fly-bys of Venus. The 480 kg spacecraft, costing $740 million, will approach the sun to a distance of 5.8 million km. Protected by the heat shield will be five instruments that will peak over the edge of the heat shield and measure the particles and radiation fields in the outer solar corona. At the closest approach distance, the sun will occupy a much larger area of the sky than what it does at the distance of Earth. The angular size of an object as it appears to a viewer depends on the actual physical size of the object, and its distance from the viewer. Although physical size and diameter are usually measured in terms of meters or kilometers, the angular diameter of an object is measured in terms of degrees or radians. The…

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