28 cm 28 cm Baseball Baseball

Q: A fishnet consists of 1-mm-diameter strings overlappedand knotted to form 1-by-1-cm squares.…

A: The properties of sea-water at 20 degrees Celsius are: Also, let us consider that the value of the…

Q: A boat moves through water (T = 40°F), at 18.0 mi/h. A flat portion of the boat hull is 3.3 ft long,…

A: The properties of water at T = 40 oF are written as, The velocity of the boat is given as, The…

Q: A fl at-plate airfoil with C = 1.2 m is to have a lift of30 kN/m when fl ying at 5000-m standard…

A: Given data: Chord, C = 1.2 m Velocity , U∞ = 641 m/s Airfoil lift, F = 30 KN/m   Now from properties…

Q: A heavy sphere attached to a string should hang at an angleθ when immersed in a stream of velocity…

A: Given, U = 40 m/s diameter (d) = 3 cm = 0.03 m Specific Gravity of steel = 7.86  Freebody diagram,…

Q: What is the f (equivalent drag area) for an aircraft that creates 600 lbs of parasite drag at 10,000…

A: Write the density of air at an altitude of 10000 ft. ρ=0.0565 lbs/ft3

Q: The two spheres stand with a stop element as in the figure. The spheres are connected with…

A: Given: The specific gravity of steel ball= 5.98 The density of air= 1.225 kg/m3 The density of…

Q: In principle, it is possible to use rotating cylinders as aircraftwings. Consider a cylinder 30 cm…

A:

Q: The 2013 Toyota Camry has an empty weight of 3190 lbf, a frontal area of 22.06 ft2, and a drag…

A: Write the given value using suitable variables. Here W signifies Camry weight, A signifies frontal…

Q: A thin equilateral triangle plate with a = 104.5 cm (as shown below) is immersed parallel to a U =…

A: Thin equilateral triangle plate a =104.5cmV∞ =11.3 msT =20°C      ,    P =∆atmPair =1.2 kgm3  ,  μ…

Q: P6.26 A 775 N skydiver reaches a terminal velocity of 240 km/b during free fall. If the frontal area…

A:

Q: A ship tows a submerged cylinder, which is 1.5 m in diameterand 22 m long, at 5 m/s in freshwater at…

A: Write the properties of water at 20°C.

Q: An airplane has a mass of 19,550 kg, a wingspan of 20 m,and an average wing chord of 3 m. When…

A: Given: The mass of an airplane is m=19550 kg. The density of the air is ρ=0.5 kg/m3. The wingspan of…

Q: The original Flettner rotor ship was approximately 100 ftlong, displaced 800 tons, and had a wetted…

A: Given: The length of the Flettner rotor ship is L = 100 ft The diameter of the rotors is D = 9 ft…

Q: 13) An inflated toy balloon is about 8g, with a cross-sectional area of 0.023 m'. It falls in air…

A:

Q: A glider weighing a 750lbf has a wing loading of 12Ibf/ft?. Its drag equation is: 2 C, = 0.010 +…

A: Given data Weight of glider = 750 lbfWing loading = 12 lbf/ft2CD = 0.010 + 0.22 CL2Launch is at 1500…

Q: To measure the drag of an upright person, without violatinghuman subject protocols, a life-sized…

A: Write the given data: pair=1.2 kg/m3L=6 mN=80 rpmP=60 kW=60000W1000 W1 kW

Q: Air flows at Ma = 2.5 past a half-wedge airfoil whoseangles are 4°, as in Fig.  Compute the lift and…

A: a) The lift and drag coefficient at α=0   CL=0CD=42.52-102+12tan24++0=0.0042

Q: Q1/ Boeing 737 - 60 flies at altitude 15000m above sea level with speed 85 m/s and total drag…

A: Given data: -  The speed of the Boeing 737 - 60 is v = 85 m/s. The density of air at this condition…

Q: For a laminar boundary layer growing on a horizontal flat plate, the boundary layer thickness ? is…

A: The expression for the boundary layer growing over the horizontal plate for laminar flow is:…

Q: An aluminum cylinder weighing 30 N, 6 cm in diameterand 40 cm long, is falling concentrically…

A: Given: The weight of the cylinder is w= 30 N. The diameter and length are D= 6 cm=0.06m and L=40…

Q: A 2 m diameter cylinder rotates at 1800 rpm in an air stream (p=1226 kg/m³) of 25 m/sec. Estimate…

A: Air density cannot be 1226 kg/m3 which is greater than density of water = 1000 kg/m3 . Hence,…

Q: A thin aerofoil of chord length 1 m, with small angle of attack flying at a speed of 111 m/s is…

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Q: A beach ball 20 cm in diameter traveling at a speed of 50 m/s in still air at 30°C is found to…

A: given data;diameter of beach ball(d)=20cm=0.2mtravelling speed of ball (v)=50m/sdrag force of beach…

Q: A vortex ring is travelling from a less dense environment p, to denser medium p2 so that P2 > P1. If…

A: Give, Vortex ring is travelling from less density to high density, i.e., ρ2>ρ1 The size of the…

Q: For fl ow of sea-level standard air at 4 m/s parallel to a thinfl at plate, estimate the boundary…

A: Standard sea level conditions Dynamic viscosity = 1.789×10−5 Pa·s Density = 1.225 kg/m3 Reynold’s…

Q: An aircraft flying steady and level at true airspeed of 720 km/hr at sea level. The aircraft have…

A: Given that, Velocity of aircraft = V=720 km/hr=200 m/s Wing area of aircraft = S=187 m2 Thrust of…

Q: When immersed in a uniform stream V, a heavy rod hingedat A will hang at Pode’s angle θ, after an…

A: Given, L = 40 cm D = 1 cm V = 35 m/s

Q: A hydrofoil 50 cm long and 4 m wide moves at 28 kn inseawater at 20°C. Using fl at-plate theory with…

A: Given, L = 50 cm = 0.5 m b = 4 m V = 28 knots = 14.4 m/s T = 20°C Re = 5 x 105 ε = 0.3 mm

Q: A sky diver jumps from a plant. Estimate his terminal Speeds by estim arting the mass of the sky…

A: Given: Body surface area =A= 0.4 m ×1.8 m=5.2  m2Drag coefficient =C= 0.5

Q: The 2013 Toyota Camry has an empty weight of 3190 lbf,a frontal area of 22.06 ft2, and a drag…

A: Given ,Weight of the Vehicle  W = 3190 lbfFrental Area       A = 22.06 ft2Rolling Resistance  Crr =…

Q: Skydiver Luke jumps with his parachute of diameter D = 12m out of an airplane. The combined mass of…

A: Given : m=100 kg D=12 m Cd = 1.4 To find : Time taken to fall between 3000 m to 2000 m

Q: (d) Heat transfer on a circular cylinder, the second minima on Nu vs T curve due to which flow…

A: As the parts A, B and C are answered. We are solve for parts d, e and f. Please request another…

Q: P6.31 (a) A luxury sports car has a frontal area of 2.08 m? and a 0.29 coefficient of drag at 95…

A: Given data: (a)  The frontal area of the car is A=2.08 m2 The coefficient of drag is CD=0.29 The…

Q: The main cross-cable between towers of a coastal suspensionbridge is 60 cm in diameter and 90 m…

A: Given data: Diameter of cross-cable = 60 cm                     Length of cross cable = 90 m…

Q: 8. A flat plate ( 1.5 m ) long and ( 1.5 m ) wide is towed in water (p = 1000 kg/m and v=1.31 * 10 “…

A: The given values are length l=1.5m, width b=1.5m, density ρ=1000kg/m3 , kinematic viscosity…

Q: A tiny particle of mass 4 x 10°4 kg (so fdrag = bv) has a drag coefficient, b = 3.3 x 10² kg/sec.…

A: Given data  mass of particle (m) = 4*10-4 kg  drag coefficient (b) = 3.3*10-2 kg /sec   To determine…

Q: 7.27 A thin smooth disk of diametd., D is immersed parallel to a uniform stream of velocity U.…

A:

Q: A wing of 2 percent camber, 5-in chord, and 30-in span istested at a certain angle of attack in a…

A: Given data as per question span of wing =30 in velocity=200 ft/s  lift=30 lbf Drag =1.5 lbf

Q: Icebergs can be driven at substantial speeds by the wind.Let the iceberg be idealized as a large,…

A: Drag force due to water is FDw=CDw12ρwAV2 Drag force due to air is FDa=CDa12ρaAU-V2 By taking the…

Q: A ship 200 f t long with a wetted area of 5000 ft2 moves at 25 ft/s. Find the friction drag,…

A: Given:Speed,U=25ftsViscosity,v=1.2×10-5ft2sDensity,ρ=1.94slugsft3Length of ship,L=200ft

Q: A portion of ship’s hull can be idealized as a flat plate, 100ft long. If the ship’s velocity is 10…

A: Given data: L=100 ftv=10 ft/sρ=62.4 lbm/ft³µ=3.0 lbm/hr.ft Need to determine the maximum boundary…

Q: 8. A flat plate ( 1.5 m ) long and ( 1.5 m ) wide is towed in water ( p = 1000 kg/m and v=1.31 * 10…

A:

Q: A Kelvin oval is formed by a line–vortex pair with K =9 m2/s, a = 1 m, and U =10 m/s. What are the…

A: Given data: The stream velocity, U = 10 m/s. The value of a, a = 1 m. The value of k, k = 9 m2/s.…

Q: 1 .Water at 15 ºC flows past a 1.5 mm radius small sphere at 5 cm/s. What is most nearly the drag…

A: Data given: Size of the sphere radius ,d= 1.5mm= 0.0015m cross sectional area =…

Q: How do we use the Buckingham pi theorem to prove that drag coefficient is dimensionless?

A: Drag coefficients (Cd) are a measurement of an object's resistance to moving through a fluid. They…

Q: Let the flow straighteners in Fig.  form an array of20 x 20 boxes of size a = 4 cm and L = 25 cm. If…

A: given:ρ=1.205kg/m3μ=1.78×10-5kg/msside of square box a=0.04mlength of square box L=0.25mvelocity of…