Use Bernoulli's equation to estimate the upward force on an airplane's wing if the average flow speed of air is 195 m/s above the wing and 162 m/s below the wing
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Starting from rest, a 1.6x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.42 N on it. This force does 3.6x104 J of work on the flea. (a) What is the flea's speed when it

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Starting from rest, a 1.7x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.45 N on it. This force does 1.9x104 J of work on the flea. (a) What is the flea's speed when it

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Probability
Let Θ1 and Θ2 be some unobserved Bernoulli random variables and let X be an observation. Conditional on X=x, the posterior joint PMF of Θ1 and Θ2 is given by pΘ1,Θ2∣X(θ1,θ2∣x)= 0.26, if θ1=0,θ2=0, 0.26, if θ1=0,θ2=1, 0.21, if θ1=1,θ2=0,

physics
Modern airplane design calls for a lift, due to the net force of the moving air on the wing, of about 2000 N per square meter of wing area. Assume the air flows past the wing of an aircraft with streamline flow. If the speed of flow past the lower wing

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Starting from rest, a 2.3x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.44 N on it. This force does 2.7x104 J of work on the flea. (a) What is the flea's speed when it

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Starting from rest, a 2.4x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.42 N on it. This force does 1.5x104 J of work on the flea. (a) What is the flea's speed when it

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An airplane wing is designed so that the speed of the air across the top of the wing is 274 m/s when the speed of the air below the wing is 193 m/s. The density of the air is 1.29 kg/m3. What is the lifting force on a wing of area 25.0 m2?

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What is the net upward force on an airplane wing of area 20.1 m2 if the speed of air flow is 302 m/s across the top of the wing and 287 m/s across the bottom? (assume the density of air is 1.29 kg/m3)

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4 Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.

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An airplane in a horizontal circle at a speed of 130.5556 m/s. If its wings are tilted 40 degress to the horizontal, what is the radius of the circle in which the plane is flying? Assume that the required force is provided entirely by an "aerodynamic lift"

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A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics 

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A jumbo jet airplane has a mass of about 400,000 kg when fully loaded with over 400 passengers and takes off at a speed of 250 km/h. Determine;The takeoff speed when the airplane has 100 empty seats. Assume each passenger with luggage is 140 kg and the

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(a) Find the pressure difference on an airplane wing where air flows over the upper surface with a speed of 126 m/s, and along the bottom surface with a speed of 101 m/s. kPa (b) If the area of the wing is 30 m2, what is the net upward force exerted on the

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An airplane wing with an average cross sectional area of 10 m^2 experiences a lift force of 5000 N. What is the difference in air pressure, on the average, between the bottom and top of the wing? a. 5000 Pa b. 500 Pa c. 50 Pa d. 50000 Pa e. 10 Pa

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Practice Problem 13.9 Let's begin by looking at a flow problem in which the diameter of a pipe changes along the flow path. We will need to use both the continuity equation and Bernoulli's equation for this problem. Water enters a house through a pipe with

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An airplane of mass 1.6 x 10^4 kg is moving at 58 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.0 x 10^4 N. If the force exerted by air resistance on the body of the airplane has a magnitude of

Physics
Use Bernoulli's equation to estimate the upward force on an airplane's wing if the average flow speed of air is 195 m/s above the wing and 162 m/s below the wing.

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In an aortic aneurysm, a bulge forms where the walls of the aorta are weakened. If blood flowing through the aorta (radius 1.0 cm) enters an aneurysm with a radius of 2.5 cm, how much on average is the blood pressure higher inside the aneurysm than the

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An airplane of a certain density and shape flies at a constant speed. To do so, it must fly with a certain velocity v0. If the size of the airplane is scaled up in length, width, and height by a factor of two, it can only fly above a new velocity v1. What

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HELP!!! Consider an airplane with a total wing surface of 140 . At a certain speed the difference in air pressure below and above the wings is 3.0 of atmospheric pressure.Find the lift of the airplane

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A model airplane is shot up from a platform 1 foot above the ground with an initial upward velocity of 56 feet per second. The height of the airplane above ground after t seconds is given by the equation h=16t^+56t+1, where h is the height of the airplane

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An airplane is flying in a horizontal circle at a speed of 482 km⁄h. The wings of the plane are tilted at 38.2° with respect to the horizontal as shown in the figure below. Find the radius of the circle in which the plane is flying. Assume that the

probalitity
Let Θ1 and Θ2 be some unobserved Bernoulli random variables and let X be an observation. Conditional on X=x, the posterior joint PMF of Θ1 and Θ2 is given by pΘ1,Θ2∣X(θ1,θ2∣x)= 0.26, if θ1=0,θ2=0, 0.26, if θ1=0,θ2=1, 0.21, if θ1=1,θ2=0,

Ap Physics 1
The 1800 kg tractor exerts a force of 17500N backward on the pavement, and the system experiences forces resisting motion that total 2400 N. If the acceleration is 0.210 m/s2, what is the mass of the airplane? (b) Calculate the force exerted by the tractor

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Starting from rest, a 1.7x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.44 N on it. This force does 2.4x104 J of work on the flea. (a) What is the flea's speed when it

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Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced an upward normal force of approximately 261,100 N acting on its torso when it hit the ground. Assume the torso has a mass of 3700 kg. Assuming the torso

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An airplane has an effective wing surface area of 16 square meter that is generating the lifting force. In level flight the air speed over the top of the wings is 62m/s, while the air speed beneath the wings is 54m/s. What is the weight of the plane?

College physics
An airplane is cruising along in a horizontal level flight at a constant velocity, heading due west. (a) If the weight of the plane is 5.54 104 N, what is the net force on the plane? (b) With what force does the air push upward on the plane?

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Starting from rest, a 1.6x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.38 N on it. This force does 2.6x104 J of work on the flea. (a) What is the flea's speed when it

Fluid Mechanics
Not sure how to approach this problem. Seems simple. Here it is... An airplane is moving through still air at 60m/s. At some point on the wing, the air pressure is 1200N/m^2 gauge. If the density of air is 0.8kg/m^3, find the velocity of the flow at this

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What is the net upward force on an airplane wing of area 22.0 m2 if the speed of air flow is 315 m/s across the top of the wing and 270 m/s across the bottom?

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Consider an airplane wing of area 15 m2. The airflow speed over the top of the wing is 205 m/s, while the speed across the bottom is 160 m/s. Estimate the thickness of the wing. What is the lift force on the wing at sea level at 0°C? (Use your estimate.)

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Modern airplane design calls for a lift, due to the net force of the moving air on the wing, of about 2000 N per square meter of wing area. Assume the air flows past the wing of an aircraft with streamline flow. If the speed of flow past the lower wing

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Find the pressure difference on an airplane wing where air flows over the upper surface with a speed of 119 m/s, and along the bottom surface with a speed of 105 m/s. (b) If the area of the wing is 40 m2, what is the net upward force exerted on the wing?

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(a) Find the pressure difference on an airplane wing where air flows over the upper surface with a speed of 126 m/s, and along the bottom surface with a speed of 101 m/s.(kPa) (b) If the area of the wing is 30 m2, what is the net upward force exerted on

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An airplane wing with an average cross sectional area of 10 m^2 experiences a lift force of 5000 N. What is the difference in air pressure, on the average, between the bottom and top of the wing? a. 5000 Pa b. 500 Pa c. 50 Pa d. 50000 Pa e. 10 Pa

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Read the statement. The air that flows over the top part of an airplane's wing moves faster than the air that flows across the bottom. This faster moving air causes the wing to rise. Which of the following principles or laws helps explain why the wing

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An airplane is moving through the air at a velocity v = 227 m/s. Streamlines just over the top of the wing are compressed to 80% of their original area, and those under the wing are not compressed at all. (a) Determine the velocity of the air just over the

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in ascending to a higher altitude,the segment AB of an airplane wing makes an angle of 20 degree.for such a conditions to exist, the force on the wing should be 12,000 newton perpendicular to AB. what is the lift force and drag force?

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A certain insect’s wing has been shown to deflect a distance 14.8 mm under a force of 0.19 N applied to the end of the wing. (a) If the wing is assumed to behave as an ideal spring, calculate the force constant in N/m. (b) At this deflection, how much

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On a particular airplane wing, air flows over the upper surface with a speed of 115 m/s and along the bottom surface with a speed of 90 m/s during flight. If the area of the wing is 140 m^2, what is the lift force on the wing? Air density is 1.29 kg/m3.

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An horizontally flying airplane has a 20 m wing span. If the vertical component of the Earth's magnetic field is 2*10^5 T, and the voltage measured from wing tip to wing tip is 4 mV, What is the ground speed of the plane? (A) 5 m/s (B) 20 m/s (C) 7 m/s

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An horizontally flying airplane has a 20 m wing span. If the vertical component of the Earth's magnetic field is 2*10^5 T, and the voltage measured from wing tip to wing tip is 4 mV, What is the ground speed of the plane?

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Air passes over the top of an airplane wing at 235 m/s and over the bottom at 190 m/s. If the wing has area 10 m^2, how much lift results?

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Consider the window (of area 0.68 m2) of an airplane. If the pressure inside the plane is atmospheric pressure, while the pressure outside is 31 % of Patm, find the force on the window. Ignore the velocity of the airplane (i.e., ignore Bernoulli’s

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(a) An airplane flies at constant speed along a straight line at an angle of 30' with the horizontal. The weight of the airplane is 80000 N and its engine provides a thrust of 100000 N in the direction of flight. Determine the lift force perpendicular to

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The cost i dollarsof manufacturing w wing nuts is given by the expression 0.07w + 13.3. Find the cost when 375 wing nuts are made. What is the average cost to manufacture one wing nut? Put in 375 for w, and compute the cost. Average cost= costabove/w I'm

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A 12 000kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200 km/h in 3 s. (a) How many times the acceleration of gravity is the airplane’s acceleration? (b) What is the average force that the catapult exerts on the

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Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.

physics
Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.

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an aeroplane has a mass of 15 tonnes. At cruising speed,air flows over the top of it's wing at 150 m/s and under the wing at 120m/s. Calculate the pressure in difference between the top and the bottom of the wing and the surface area underside the wing

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Meaning of a wing strut in a airplane

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Bernoulli's equation is an expression of: the conservation of mass the conservation of total energy the conservation of kinetic energy the conservation of momentum the conservation of velocity My ans: the equation states that it should be a constant when

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Starting from rest, a 2.4x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.42 N on it. This force does 1.5x104 J of work on the flea. (a) What is the flea's speed when it

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An airplane has an effective wing surface area of 17 m2 that is generating the lift force. In level flight the air speed over the top of the wings is 63.9 m/s, while the air speed beneath the wings is 58.0 m/s. What is the weight of the plane? Answer in N

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a fluid flows through a horizontal pipe of varying crosssection. Assuming the flow is streamline and applying the bernoulli equation, show that pressure in the pipe is greatest where crosssectional area is greatest.

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a fluid flows through a horizontal pipe of varying crosssection. Assuming the flow is streamline and applying the bernoulli equation, show that pressure in the pipe is greatest where crosssectional area is greatest.

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An airplane is flying in a horizontal circle at a speed of 490 km/h. If its wings are tilted at 44° to the horizontal, what is the radius of the circle in which the plane is flying? Assume that the required force is procided entirely by an "aerodynamic

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When jumping straight down, you can be seriously injured if you land stifflegged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 75 kg man just before contact with the ground has a speed of 6.9 m/s. (a) In

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Starting from rest, a 1.6x104 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.38 N on it. This force does 2.6x104 J of work on the flea. (a) What is the flea's speed when it

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An airplane travel 1000k/h in a region where the Earth's magnetic field is about 5*105T. what is the potential diffenrence induced between the wing tips that are 70 m apart?

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A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics 

Physics
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics 

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An airplane of mass 1.3 104 kg is moving at 64 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.2 104 N. If the force exerted by air resistance on the body of the airplane has a magnitude of 4.0

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A 42kg girl jumps on a trampoline, after stretching to its bottom limit; the trampoline exerts an average upward force on the girl over a diplacement of 0.50m. During the time that the trampoline is pushing her up, se experiences an average acceleration of