3.2 Perhaps you have felt the end of a garden hose exert a backward force on your hand if (and only if) you have attached a nozzle. Let's estimate this force. Assume that the x-axis is aligned with the end of the hose, and points in the direction of the water flow. (a) Assume that the hose delivers water at the rate of 1l = 1000 cm 3 that the hose has a cross section of 1 cm². Estimate the speed of the water in the hose. (b) Use your result from part (a) to estimate the impulse [Apz]enter transferred every second to the nozzle by the water entering the nozzle (one liter of water has a mass of one kg). (c) The nozzle forces the water to leave the nozzle through an opening that has a cross section smaller than that of the hose. Let's assume that the nozzle's cross section is 0.5 cm². Estimate the speed at per second to the nozzle, and which the water leaves the nozzle.

3.2 Perhaps you have felt the end of a garden hose exert a backward force on your hand if (and only if) you have attached a nozzle. Let's estimate this force. Assume that the x-axis is aligned with the end of the hose, and points in the direction of the water flow. (a) Assume that the hose delivers water at the rate of 1l = 1000 cm 3 that the hose has a cross section of 1 cm². Estimate the speed of the water in the hose. (b) Use your result from part (a) to estimate the impulse [Apz]enter transferred every second to the nozzle by the water entering the nozzle (one liter of water has a mass of one kg). (c) The nozzle forces the water to leave the nozzle through an opening that has a cross section smaller than that of the hose. Let's assume that the nozzle's cross section is 0.5 cm². Estimate the speed at per second to the nozzle, and which the water leaves the nozzle.

Name: 3.2 Perhaps you have felt the end of a garden hose exert a backward f
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: 3.2 Perhaps you have felt the end of a garden hose exert a backward force on your hand if (and only if)you have attached a nozzle. Let's estimate this force. Assume that the x-axis is aligned with the endof the hose, and points in the direction of t

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

Similar questions

A pipe of inlet diameter 15+0 cm conveying 2 liters/s of water has bend of angle (θ = 90⁰) in horizontal plane. The outlet diameter is 10+ 0 cm. The inlet pressure is 15N/cm2. Find the resultant force exerted on the bend do a sketch if needed
In the hydroelectric power plant whose cross-section is given, the flow rate of Q=33.045 m^3/sec is transmitted to the power plant through a D=1.6 meter diameter penstock. Ignoring friction losses; a) Find the internal pipe pressure at point 2 ( at the below ). b) Find the resultant force (F) and its direction (O) that the water exerts on the fixation mass. c) Calculate the electrical power generated in the plant. (Pwater= 1 ton/m^3, Ywater= 9.81 kN/m^3, g=9.81m/s^2, Beta= 45 degree
Suppose a u-bend is redirecting a flow of water. The water enters flowing to the right at 10 m/s. The u-bend completely reverses the direction of the flow, so the water leaves flowing to the left. The area of the u-bend is constant, a circular cross-section of 0.12 m. The pressure in the fluid is measured at 50 kPa. The length of the u-bend is 0.46 m. Find the force, including magnitude and direction, to hold the u-bend in place.
A horizontal water pipe is reduced in size from 18 inches in diameter from point A to 6 inches in diameter to point B. The flow in the pipe is 10 cubic feet per second, and the pressure in A is 20 psi (gage). If it is assumed that there is no less energy due to friction, what is the pressure at B?
Homework Question: The pipe bend as in the figure below has D1 = 29 cm and D2 = 12 cm. When water at 20°C flows through the pipe at 4000 gal/ min, p1 = 215 kPa (gage). Compute the torque (magnitude and direction) required at point B to hold the bend stationary? HINT : D1 = 29 cm and D2 = 12 cm & p1 = 215 kPa (gage).
A two-dimensional reducing bend has a linear velocity profile at section 1. The flow is uniform at sections 2 and 3. The fluid is incompressible, and the flow is steady. Find the maximum velocity at section 1, V1,max.
A horizontal 90° elbow connects two 300 mm diameter pipes. The rate of water flow is 180L/s. The pressure at the inlet and the outlet of the elbow are 130kPa. Find the resultant thrust in the bend.
Flow of water ( density 1000 kg / m3) through a horizontal pipe is supplied from a tank. The length of the pipe is L=30 m . A valve on the pipeline is closed in 10 s with an initial velocity of 10 m/s in pipe . in reference to rigid column theory and taking gravitational acceleration as 10 m2/s calculate the surge head on the valve in m?
Let's consider a snowplow which is scooping up snow 2 cm deep (d) and the blade is 1 m wide. Lets assume the specific gravity (SG) of snow is 0.2. If we want to plow at 55 km/hr and a 30 degree vertical angle of discharge: (a) what is the force exerted on the blade? (just treat the snow like a fluid of density 200 kg/m^3). (b) what is the power necessary? (c) Suppose with the 30 degree vertical angle of discharge would this change the force exerted on the blade? what would it be if it changes? (It might occur to you that it does little good if we don't angle the blade as we just throw the snow in front of the truck...still in the roadway..)
How do you find the external forces' resultant?
Water at a pressure of 300 kN/m flows through a horizontal pipe of 120 mm diameter with a velocity of 3 m/s. If the diameter of the pipe gradually reduces to 65 mm, what is the axial force on the pipe assuming no loss of energy.
A sink of strength 20 m2/s is situated 3 m upstream of a source of 40 m²/s in a uniform stream. It is found that, at a point 2.5 m from both source and sink, the local velocity is normal to the line joining the source and sink. Find the velocity at this point and the velocity of the uniform stream. Locate any stagnation points and sketch the flow field.