Annotated_Bib_AVIA305

Can you help with both please.

I need help with my MATLAB code. There is an error in the following code. The error says my orbitaldynamics function must return a column vector. Can you help me fix it?   mu_earth = 398600.4418; % Earth's gravitational parameter (km^3/s^2) R_earth = 6378.137; % Earth's radius (km) C_d = 0.3; % Drag coefficient (assumed) A = 0.023; % Cross-sectional area of ISS (km^2) m = 420000; % Mass of ISS (kg)       % Initial conditions: position and velocity (ISS state vector) % ISS initial state vector (km and km/s) - sample data state_ISS =[-2.1195e+03, 3.9866e+03, 5.0692e+03, -5.3489, -5.1772, 1.8324];   % Time span for 10 revolutions T_orbit = 2 * pi * sqrt((norm(state_ISS(1:3))^3) / mu_earth); time_span = [0, 10 * T_orbit];     % Step 3: Numerical integration using ODE solver options = odeset('RelTol', 1e-12, 'AbsTol', 1e-12); [t, state] = ode45(@orbitalDynamics, time_span, state_ISS, options);   % Step 4: Plot the results figure; plot3(state(:, 1), state(:, 2), state(:, 3)); xlabel('X…

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

According to Froude scaling laws, what should the revolutions per minute of the prototype propeller be under dynamically similar conditions? and According to Froude scaling laws, what should the horsepower output of the prototype propeller be under dynamically similar conditions?

3. Problem Estimate the frictional resistance Rp for a container ship using the ITTC 1957 model-ship correlation line Equation (2): 0.075 CF [ log,,(Re) – 21 The ship has the following particulars: Full scale ship data length between perpendiculars Lep length in waterline length over wetted surface 195.40 m Lwz Los For the wetted surface S you can use the following formula by Kristensen and Lützen (2012) derived for container ships. 200.35 m 205.65 m breadth B 29.80 m draft T 10.10 m 37085.01 m3 S = 5 + Lw. T 0.995 displacement design speed Again, use the most up-to-date ITTC water properties sheet for density and kinematic viscosity. V 21.00 kn

CASIO fx-991ES PLUS ALPHA CALC EGO the car move ? [Ans. NA 16.5 kN, Ng =42.3 kN, the car does not move] %3D 5. A box weighs 150 kg. The coefficient of static friction between the box and the ground is 0.3. Determine if the 80 kg man can pull the box without slipping when the coefficient of static friction between the man's shoes and the ground is 0.4. Hint: analyse block and man separately i.e. draw separate FBDS

The following equation may be used to estimate the take-off ground run for an aircraft: Equation has been attached as an image. Calculate the take-off ground run, from a runway at ISA-SL conditions, for a twin engine aircraft for which the following data may be assumed Aircraft lift-off speed 155 knots Max take-off gross weight 220 tonnes Wing planform area (S) 358 m Wing CL (t/o flaps deployed, a = 0) 1.1 Wing span 53.18 m Oswald efficiency factor, e 0.7 KGE = CD(IGE) / Co(OGE) 0.4 Co sum (fuselage, wing, tailplane and nacelle) 0.015 Co for undercarriage 0.021 Co for flaps at taking-off setting 0.0073 Coefficient of rolling friction, u 0.02 Engine thrust (assumed constant) 310 kN per engine It may be assumed that 1knot = 0.51444 m/s   It may be assumed that 1knot = 0.51444 m/s

(b) A wind-tunnel experiment is performed on a small 1:5 linear-scale model of a car, in order to assess the drag force F on a new full-size car design. A dimensionless "drag coefficient" Ca is defined by C, =- pu'A where A is the maximum cross-sectional area of the car in the flow. With the model car, a force of 3 N was recorded at a flow velocity u of 6 m s. Assuming that flow conditions are comparable (i.e., at the same Reynolds number), calculate the expected drag force for the full-sized car when the flow velocity past it is 31 m s (equivalent to 70 miles per hour). [The density of air p= 1.2 kg m.]

(Review experimental scaling) A lightweight parachute is being designed for military use. Its diameter D is 20 ft and the total weight W of the falling payload, parachute, and equipment is 190 lb. The design terminal settling speed V. (or terminal velocity) of the parachute at this weight is 16 ft/s. A one-twelfth scale model of the parachute is tested in a wind tunnel. The wind tunnel temperature and pressure are the same as those of the prototype, which is 70 °F and standard atmospheric pressure. a) Calculate the drag coefficient of the prototype. (Hint: At terminal velocity, speed is constant so weight is in equilibrium with aerodynamic drag.) b) At what speed should the wind tunnel be run in order to achieve dynamic similarity? c) Find the aerodynamic drag force of the model parachute in the wind tunnel in pounds. Payload

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.

iPhone -... blem Set 1 Question 1 of 10 View Policies Current Attempt in Progress X = y = Electric C... Z= I eTextbook and Media Save for Later in https://m... education.wiley.com National... 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*LYT. i WP Problem... W Support -... WP NWP Ass... -/10 E Start Pag Attempts: 0 of 5 used Submit Answer

Fluid Mechanics Problem   Note: Fluids are assumed to be at 20oC.

A one-fourth scale model of a car is to be tested in a wind tunnel. The conditions of the actual car are V = 45 km/h and T = 0°C and the air temperature in the wind tunnel is 20°C. In order to achieve similarity between the model and the prototype, the wind tunnel is run at 180 km/h.  The properties of air at 1 atm and 0°C: ? = 1.292 kg/m3, ? = 1.338 × 10−5 m2/s.                                                                                                            The properties of air at 1 atm and 20°C: ? = 1.204 kg/m3, ? = 1.516 × 10−5 m2/s.                                                                                                               If the average drag force on the model is measured to be 70 N, the drag force on the prototype is (a) 66.5 N (b) 70 N (c) 75.1 N (d ) 80.6 N (e) 90 N

6. A ball is thrown straight up in the air at time t = 0. Its height y(t) is given by y(t) = vot - 791² (1) Calculate: (a) The time at which the ball hits the ground. First, make an estimate using a scaling analysis (the inputs are g and vo and the output is the time of landing. Think about their units and how you might construct the output using the inputs, just by matching units). Solve the problem exactly. Verify that the scaling analysis gives you (almost) the correct answer. (b) The times at which the ball reaches the height v/(4g). Use the quadratic formula. (c) The times at which the ball reaches the height v/(2g). You should find that both solutions are identical. What does this indicate physically? (d) The times at which the ball reaches the height v/g. What is the physical interpretation of your solutions? (e) Does your scaling analysis provide any insight into the answers for questions (a-e)? Discuss. (Hint: Observe how your answers depend on g and vo).

Step by step work starting with the formula.

1. (a) The motion of a floating vessel through the surrounding fluid results in a drag force D which is thought to depend upon the vessel's speed v, its length I, the density p and dynamic viscosity μ of the fluid and the acceleration due to gravity g. Show that:- D = pv²1² (1) (b) In order to predict the drag on a full scale 50m long ship traveling at 7m/s in sea water at 5°C of density 1027.7225 kg/m³ and viscosity 1.62 x 103 Pa.s, a model 3m long is tested in a liquid of density 805 kg/m³. What speed does the model need to be tested at and what is the required viscosity of the liquid?

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…

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Fluid Mechanics Problem   Note: Fluids are assumed to be at 20oC.