A vehicle manufacturer is considering an engine for a new sedan (CD = 0.34, Af = 22 ft2). The car is being designed to achieve a top speed of 100 mi/h on a paved surface at sea level (ρ = 0.002378 slugs/ft3) and a grade of 2%. The car currently weighs 2000 lb, but the designers initially selected an underpowered engine because they did not account for aerodynamic, grade, and rolling resistances. If 2 lb of additional vehicle weight is added for each unit of horsepower needed to overcome the neglected resistance, what will be the final weight of the car if it is to achieve the 100-mi/h top speed? What is the maximum initial acceleration this car can achieve from rest on this particular road?

Q: Boeing 737-600 flies at altitude 150o0m above sea level with speed 85 m/s and total drag coefficient…

A: Given: The altitude of flight, h = 15000 m The speed of flight, v = 85 m/s The drag coefficient, cf…

Q: An aircraft has span efficiency factor = 0.7831, minimum drag coefficient = 0.025, wing area = 175…

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Q: Calculate the power required to overcome the drag. How much power does a 27 km / h head wind blow?

A: Given Data: The mass of the car is, m=2000 kg. The coefficient of drag is, Cd=0.3. The area of the…

Q: 2. A 0.10 cm-radius sphere falling in air (T= 20°C) at a speed of 25 m/s. Determine the following:…

A: Given  radius of sphere (r) =.10 cm  Terminal velocity (v)=25 m/s density of Air ρ =1.2 kg/m3…

Q: A flat plate 200 mm x 750 mm slides on oil (μ = 0.85 N.s/m²) over a large plane. What force F is…

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Q: B Q2) The velocity distribution in the boundary layer over a high spillway face was found to have…

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Q: A jet airplane weighs 160,000 N and has a zero-lift drag coefficient of 0.008 and a wing area of 42…

A: Given:W=160000 NCD=0.008A=42 m2v=100 m/sr=11.5 m/sT=27000 NLift coefficient,…

Q: The drag coefficient of a car at the design conditions of 1 atm, 70°F, and 60 mi/h is to be…

A: The drag force on an object can be expressed as,   Given data in SI units is The density of air at…

Q: At an altitude of 7 km, air is travelling at a supersonic speed and decelerated by a normal shock…

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Q: Does it take more, equal, or less power for a helicopter to hover at the top of a high mountain than…

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Q: Topic: Impulse and Momentum Sand drops at a rate of 2000 kg/min from the bottom of a hopper onto a…

A: Calculated force needed to drive conveyer.

Q: Cd=1.4 (coefficient of drag)  ¥=10 ft/sec (velocity) Ƴ=62.4 #/ft3  g=32.3 ft/sec2 a. What is the…

A: givencoefficient of drag CD=1.4velocity of water V=10ft/sdensity of water γ=62.4 lb/ft3g=32.3…

Q: Determine the velocity required for take off for an aircraft with the following characteristics.…

A: Given that, Mass of aircraft, M=7150 kg,Wingspan=15 m,Wing shape=Rectangular,Wing chord length=1.2…

Q: 7. Calculate the minimum radius of curvature in the steady turn for a single-engined jet aircraft,…

A: Write the expression of minimum radius of curvature in the steady turn for a single-engined jet…

Q: Characteristic curves are available for a fan running at 850rpm and passing air of inlet density 1.2…

A: We  know that   PH,aPH, b=ηa2ηb2.da2db2.ρaρb  So,  P1=2.2×11008502×1.11.2             P1  =3.37 kpa…

Q: An aircraft has span efficiency factor = 0.7831, minimum drag coefficient = 0.025, wing area = 175…

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Q: Q5: A jet engine airplane has a weight of 64 kN and wing area of 20 m². If the engine output be 8…

A: Given: Let us consider the given data,                 Weight, F=64 kN            Wing Area,A=20 m2…

Q: A light truck weighs 3,300 lb and is rated at 30 miles per gallon for 52 mph highway driving on…

A: Given:Truck weight, W=3300 lbconsumption=30 miles/gallonvelocity, V=52 mph or 76.27 ft/s or 23.25…

Q: A body travels through 60° standard air at 60 mph, and 5.5 hp is required to maintain this speed. If…

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Q: An incompressible fluid of density ? and viscosity ? flows through a curved duct that turns the flow…

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Q: As a young engineer, you have been tasked to select the location of a wind turbine based on the…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: For the vehicle whose specifications are given below, calculate the engine power required in kW to…

A: Givenslope=12%=12100=0.12tanθ=0.12⇒θ=tan-10.12=6.84ovehicle speed (v)=99 km/h=99×518m/s=27.5 m/swind…

Q: What is the formula and variables in finding the air drag of a motorcycle?

A: Given question: What is the formula and variables in finding the air drag of a motorcycle. The given…

Q: 3.) Automotive engineers work very hard to improve the value of the drag coefficient for cars.…

A: GIVEN:F=28000Nρ of air=1.21kg/m3v=150m/sA=4m2μ=0.2

Q: A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m…

A: According to the question, chairs are 20 m apart and the total length is 1 km. Calculate the number…

Q: An air current impinges laterally on an isolated train car of dimensions 3 m high, 12.2 m long and…

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Q: Problem 5. Water at STP flows at a speed of U = 0.20 m/s over a triangular flat plate with a base…

A: "We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A ship weighing 7200 tons has a KG of 5.20 m, a KB of 3.12 m and a KM of 5.35 m. In the voyage, has…

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Q: Aerodynamics NACA 747A415, chord is 180 cm 1) What is the location of favorable pressure gradient of…

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Q: impact of a jet For each weight, calculate the magnitude of the Fth theorem force acting on the…

A: GIven: The area of jet, A = 7.13x10-5  m2

Q: Question 18 A turbulent boundary layer stays attached in a more adverse pressure gradient than the…

A: The hydrodynamic boundary is formed over a surface on which a fluid is flowing. This boundary layer…

Q: Prob6 conveyor belt discharges gravel into a barge as shown at a rate of 40 m³/min. If the gravel…

A: Given: Lets us consider the given data, The specific weight of gravel,γ=18860 Nm3 Conveyor belt…

Q: If a 20 hp fishing boat motor can pull a 1150 kg boat with passengers of total mass 120 kg at a…

A: Given Data→P = 10 HP =10×746 watt =7460 wattm =1150 kgmass of passangers (M) =120 kgv = 13mswe need…

Q: Venturi tube narrows down from the inlet section to the throat. The inlet is 7 ft^2 while the throat…

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Q: Boeing 767-400ER model airplane has two engines. Each engine can have a maximum thrust (mechanical…

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Q: Explain the aerodynamic principles of a wind turbine blade

A: The aerodynamics of the wind turbine blade helps us to harness a type of renewable energy, wind…

Q: Water at 10°C flows over a 4.8-m-long flat plate with a velocity of 1.15 m/s. If the width of the…

A: Given, T = 10°C L = 4.8 m v = 1.15 m/s d = 6.5 m ρ = 999.7 kg/m3 µ = 1.307×10-3 kh/m.s f = ?

Q: A wheel tractor has a 200HP engine.if it is operating at an altitute of 1000m above sea level, at an…

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Q: Determine the velocity required for take off for an aircraft with the following characteristics.…

A: Given that, Mass of aircraft, m=7200 kg,Wingspan=15 m,Wing shape=Rectangular,Wing chord length=1.8…

Q: 8. A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m…

A: The Answer is below

Q: At what speed would these fans operate to develop 130 mm water gage when the temperature is 316 deg…

A: A turbine efficiently operates at its design point of head, discharge, speed and power output. To…

Q: When rowing downstream consider the following scenario. The current of the water is moving at 2 m/s…

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Q: Why control surfaces at tails of airplanes become in effective at high speeds? what is the need of…

A: Solution:

Q: A space 22 mm wide between two large plane surfaces is filled with honey with absolute viscosity…

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Q: What is the significance of subsonic low-speed wind tunnels? 2. Distinguish between Calibrated and…

A: The term wind tunnel refers to a device that produces a controlled stream of air in order to examine…

Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.