P3.48 The small boat is driven at steady speed Vo by compressed air issuing from a 3-cm-diameter hole at Ve = 343 m/s and pe = 1 atm, Te = 30°C. Neglect air drag. The hull drag is kV.?, where k = 19 N · s/m². Estimate the boat speed Vo. D,= 3 cm Compressed air Hull drag kV

P3.48 The small boat is driven at steady speed Vo by compressed air issuing from a 3-cm-diameter hole at Ve = 343 m/s and pe = 1 atm, Te = 30°C. Neglect air drag. The hull drag is kV.?, where k = 19 N · s/m². Estimate the boat speed Vo. D,= 3 cm Compressed air Hull drag kV

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: A sphere 6.0 cm in diameter, D, is fixed in airflow (see Figure). The approach velocity, V, is 4.0…

A: 1. Reynolds number Re =vDν 2. CD vs Reynolds number chart is used to get the value of drag…

Q: For a two-dimensional incompressible flow past a flat plate, the boundary layer velocity profile is…

Q: A prototype submarine moves at velocity V, in fresh water at 20 °C, at a 2-m depth, where ambient…

A: Given Depth, h = 2 m Pressure, P = 128 kPa Cavitation number, Ca = 0.25 Find Velocity, v

Q: A smooth wooden sphere (SG = 0.65) is connected by athin rigid rod to a hinge in a wind tunnel, as…

A: Consider the free body diagram of the ball and rod system as shown below. Here, The coefficient of…

Q: A viscous liquid of constant ρ and μ falls due to gravitybetween two plates a distance 2 h apart, as…

A: Let us assume the flow is steady. Thus, the z- component of the Navier - stokes equation is written…

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: Air at free-stream velocity of 8 m/s flows over a thin flat plate of length 5 m and width 1 m. A…

A: Solution:

Q: A wind stress of 0.2 N m-2 blows over an initially stationary freshwater lake, 20 km long, and moves…

A: Shear stress acts tangentially to the surface. Turbulent flow is that type of flow in which the…

Q: Air flows at high speed through a Herschel venturi monitoredby a mercury manometer, as shown in Fig.…

A: Given data, Determine the density of fluid by using the ideal gas equation,

Q: A ship is propelled by two cylindrical rotors turming at 250 r. p.m. about their axes which are…

Q: Chapter 4 1. Solve for parsite drg with air denaity 9, velocity 10 KIAS, Car13, urface area 174 2…

Q: A 30 cm diameter cork ball (S=0.21) is tied to the bottom of a river as shown. (a) Draw the free…

Q: Siven: u=10 Ns/m², p =1.5 kg/m', L=2m,approach velocity U = 20 m/s. The oundary layer thickness is…

Q: ensity, p = 1.20 kg/m³ and the air dynamic viscosity, µ = 1.80 x 10$ kg/m•s. = freestream velocity,…

Q: A hydrofoil 51 cm long 4 m wide moves at 1m/s in water at temperature 20 C. Use laminar boundary…

A: Given Data⇒ Length of the hydrofoil is L=51 cm L=0.51 m w=4 m Velocity is v=1ms At T=200C Laminar…

Q: Air, at stagnation conditions of 500 K and 200 kPa, flows through a nozzle. At section 1, where the…

A: The Answer is Below

Q: If, in an incompressible plane flow, the velocity component u = const, what can we say about the…

A: Explanation: In an incompressible plane flow, ∂u∂x+ ∂V∂y=0 But, u = constant So, ∂u∂x=0 0+∂v∂y=0…

Q: wind tunnel nozzie consists of a smooth contraction from Az = 0.2 m². The outlet velocity is Uz =40…

A: Draw the diagram- Given -A1=0.6m2A2=0.2 m2V2=40 m/sP2=101.6 kPaP=1.225 kg/m3(constant due to in…

Q: A solid finite body having the shape of HALF BODY moves in windless air with a velocity, V=2,3 m/s…

A: Given: Potential flow with the uniform flow U=2.3 m/s and source flow superimposed To find: a)…

Q: 6.28 This planar water jet (60°F) is deflected by a fixed vane. What are the x- and y-components of…

A: To solve this question I have applied the continuity equation and force momentum theorem for the…

Q: A flagpole 20m high with a cross section shape of a square with 1000mm sides is exposed to sea level…

A: Given:flagpole height=20 mv=50 m/sTo=30+273=303 KSide, a1=1000 mm or 1 mPo=101325 Paμ=1.78×10-5…

Q: Asap Find the whirling speed, Nc, (in cps) of a shaft 10 mm in diameter and 1.0 m long carrying a…

Q: Calculate the bending

A: Given: D=2.5 m L=50 m V=80 km/h CD=0.33 To determine: bending moment at base

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

Q: Liquid flows tangentially past a flat plate. The fluid properties are u=10° N.S/m² and p=1.5 kg/m³.…

Q: Q4. Consider an aircraft flying in straight and level flight with total wing area 110 m², wing…

A: Apply the energy equation for rising flight in order to determine the climb rate that the aircraft…

Q: 7,(1 – n), 5.10 In a laminar boundary layer, the shear stress distribution is given as t= T where n…

Q: One of the corner flow patterns of Fig. 8.18 is given by thecartesian stream function ψ = A(3yx2 -…

A: The stream function is given for the corner flow pattern a).

Q: The drag equation of an aircraft is given by the equation: Cp = 0.025 + 0.035 CZ The weight of the…

A: Given dataW=120kNA=32m2F=12kNUsing the Drag relation then equation to find speed

Q: A ship 150 m long, designed to cruise at 18 kn, is to betested in a tow tank with a model 3 m long.…

A: Given: The length of the prototype is LP=150 m. The velocity of the prototype is VP=18 kn. The…

Q: Water at 20°C flows over a flat plate with freestream velocity of 0.3 m/s. The plate is 100 cm long…

Q: For a two-dimensional incompressible flow past a flat plate, the boundary layer velocity profile is…

A: Given: Two dimensional incompressible flow pasta)uU=32yδ-12yδ3b) uU=yδ18 To find:- (i) displacement…

Q: Q.4 A steady, uniform-density, 2-D flow is to be calculated on the square grid shown below. The…

Q: Air flows through a 6-cm-diameter smooth pipe that has a2-m-long perforated section containing 500…

A: Given, The diameter of the pipe is D = 6 cm. The length of the pipe is L = 2 m. The diameter of…

Q: Assume that the Flettner rotor ship of Fig. has a waterresistance coefficient of 0.005. How fast…

A: Given data Height of the rotor L = 50ftDrag coefficient of te rotor CD = 4Lift coefficient of each…

Q: Which one of the below is not the source of UV radiation? Sunlight Electric arc…

A: UV radiation is a form of electromagnetic radiation that comes from sun and some man made sources.…

Q: Let's consider a snowplow which is scooping up snow 2 cm deep (d) and the blade is 1 m wide. Lets…

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

Q: P8.8 For the velocity distribution u = −By, v = +Bx, w = 0, evaluate the circulation I about the…

A: For the solution refer below images.

Q: A power plant continuously releases from a 70-m stack a plume into the ambient atmosphere of…

A: Effective stack heigh needs to be calculated

Q: A 60-N-m couple is applied to the steel bar shown. (a) Assuming that the couple is applied about the…

A: Given, Couple M = 60 Nm E = 200 GPa = 200 X 109 Pa b = 12 mm h = 20 mm

Q: Air fl ows adiabatically through a duct. At one section V1 =400 ft/s, T1 = 200 °F, and p1 = 35…

A: Understand that the stagnation temperature is constant during the flow through the duct as the flow…

Question

100%

P3.48 The small boat is driven at steady speed Vo by compressed air issuing from a
3-cm-diameter hole at Ve = 343 m/s and pe = 1 atm, Te = 30°C. Neglect air drag. The hull
drag is kVo?, where k = 19 N · s/m². Estimate the boat speed Vo.
%3D
D= 3 cm Compressed
V -E
air
Hull drag kV

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Select an appropriate set of variables that influencethe drag force FD on an airfoil (Fig. P6.23) andwrite the final form in terms of dimensionlessparameters.
An observer at sea level does not hear an aircraft fl ying at12,000-ft standard altitude until it is 5 (statute) mi past her.Estimate the aircraft speed in ft/s.
Air flows from a tank through a nozzle into the standardatmosphere, as in Fig. A normal shock stands in theexit of the nozzle, as shown. Estimate (a) the pressure inthe tank and (b) the mass flow.
Complete solution and Readable
Need Solution through 15min
solveeee very very fast in 15 min | I need a clear answer by hand, not by keyboard and thabk u | dybala
Q.4 A steady, uniform-density, 2-D flow is to be calculated on the square grid shown below. The boundary velocities are given as; v₁ =30, V = 40,uc=100, u = 50, u = 200, u, = 210, V = 0 and v₁ = 20. Among these numbers, there is some doubt about correctness of the value of u,. If all other numbers are correct, what should be the correct value of u,? The internal velocities are governed by simplified momentum equations given by: up = 70+0.5 (P₁-P₂) u, = 10 +0.7 (P3-P4) V =30+0.5(P3-P₁) VG =18+0.8(P₁-P₂) Write discretized continuity equation for each control volume. Derive the discretization equation for pressure by substituting from momentum equations, following SIMPLER calculation procedure. Solve the pressure equations to obtain P₁, P2, P3 and P₁. Hence obtain values of up, u, V and VG
Consider a steel sphere (SG = 7.85) of diameter 2 cm,dropped from rest in the water at 208C. Assume a constant dragcoefficient CD = 0.47. Accounting for the sphere’s hydrodynamicmass, estimate (a) its terminal velocity and (b) thetime to reach 99 percent of terminal velocity. Comparethese to the results when hydrodynamic mass is neglected,Vterminal ≈ 1.95 m/s and t99% ≈ 0.605 s, and discuss.
The cart in Fig. moves at constant velocity V 0 =12 m/s and takes on water with a scoop 80 cm wide that dipsh = 2.5 cm into a pond. Neglect air drag and wheel friction.Estimate the force required to keep the cart moving.
P6.31 (a) A luxury sports car has a frontal area of 2.08 m? and a 0.29 coefficient of drag at 95 km/h. What is the drag force on the vehicle at this speed? (b) A sport-utility vehicle has Cp = 0.45 at 95 km/h and a slightly larger frontal area of 2.70 m?. What is the drag force in this case?
A 30 cm diameter cork ball (S=0.21) is tied to the bottom of a river as shown. (a) Draw the free body diagram of the ball. (b) Calculate the tension in the string and the drag force on the ball. (c) Estimate the speed, Uo of the river current Hint: Volume of a sphere = (1/6)πD³.
Water at 20 ° C fl ows through a long elliptical duct 30 cmwide and 22 cm high. What average velocity, in m/s, wouldcause the weight fl ow to be 500 lbf/s?