Elements Of Electromagnetics

7th Edition

ISBN: 9780190698614

Author: Sadiku, Matthew N. O.

Publisher: Oxford University Press

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sdasOne morning, Cfonnie walks from her house to go to a store that is 500 ft, S 40o W from her house. She starts walking 120 ft, SW; then continues walking 100 ft, 10o S of E; then sees a friend who is 700 ft, 30o N of E from where she is.
What is her friend’s location, (magnitude and direction) relative to her house? (Ans. 667.54 ft, 21.79o N of E)show complete solution and diagrams

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1.) Name two distinct advantages of the energy methods:
2.) Must the potential energy of a body of weight W in a gravitational field always be positive? Explain
3.) In a convservative system, the total mechanical energy (composed of kinetic energy and potential energy) is constant. True or False?
4.) A particle must execute curvlinear motion in order for it to have angular momentum about a point. A.) True B.) False
5.) For the motion of a rigid body to be a translation, the center mass of the body must move along a straight line. A.) True B.) False

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A 5-m self-propelled combine makes an average stop of 4 min every time its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field is 42 tons. The operating speed is 4.8 kph. The time for turning on the headland at the ends of the 500-m field is 15 seconds.Find the theoretical field capacity of the combine:a. 1.2 ha/hr b. 2.4 ha/hrc. 3.6 ha/hr d. 4.8 ha/hr

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The wind has deposited sand on a platform so that the intensity of the load isapproximately w = 0.5x^3 N / m. simplify the distributed load to a resulting force and specify its magnitude and location from A.

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Engineering Mechanics IIThe chipping machine is designed to eject wood chips at Vo = 4.57 m/s. If the tube is oriented at 15 degrees from the horizontal, determine how high, h (in ft), the chips strike the pile if at this instant they landed on the pile 457. 3 cm from the tube. you can download the book we are using through this link :https://drive.google.com/file/d/1Ws-HdkaO4OAfTMa1crhsf63rbClZUCl5/view?usp=sharing

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The particle in the box exercise 21 is in its ground state of nx=ny=nz=1.
a) find the probability that the particle will be found in the volume defined by 0<x>L/4, 0<y>L/4, 0<z>L/4.
b) Do the same for L/2 instead of L/4.
,

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A car of mass 250 kg starts at B with initial velocity 50.4 m/s for h=45 m, radius of curvature at C is ρ =25 m. The car barely reaches point D.speed at C (m/s) a. 40.720510802297 b. 48.864612962757 c. 57.008715123216 d. 65.152817283675 e. 32.576408641838Normal at C (m/s) a. 16957.92 b. 14131.6 c. 19784.24 d. 22610.56 e. 11305.28H (m)?

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A particle of mass 133 kg is traveling on a constant radius 1.1 m with a angle of 0.23*sin(0.35t).
1. What is the transverse speed at 2.6 seconds? [m.s-1]
2. What is the radial force at 2.6 seconds? [N]
3. What is the transverse force on the particle at 2.6 seconds? [N

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A constant force acting on a particle can be expressed in Cartesian vector form as F = 3i + Sj - 4k N. Determine the work done by the force on the particle if the displacement of the particle can be expressed in Cartesian vector form as s = 4i - 2j + 3k m.

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13.12 Fluid A is found to have a surface tension of 0.080 N m−1, a density of 1.2 × 103 kg m−3 and a contact angle of 70° with dry glass. Fluid B is found to have a surface tension of 0.100 N m−1, a density of 3.1 × 103 kg m−3 and a contact angle of 110° with dry glass. A glass capillary tube with an inner radius 1 mm is lowered into a container of fluid A and an identical capillary tube is lowered into a flask of fluid B. To what height above (or below) the fluid surface will fluids A and B rise in their respective capillary tubes?

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To use the concept of conservation of energy on a system of particles to determine key characteristics about the mechanics of the system, such as velocity and position.
The 3.45 kg cols lar hown below is attached dto a spring an released from rest at A. The collar then travels downward a distance of y = 1.90 m . The spring has a spring constant of k = 22.5 N/m . The distance a is given as 1.10 m. The datum for gravitational potential energy is set at the horizontal line through A and B.
Determine the magnitude of the velocity of the collar at C when the effects of friction are neglected. The spring is initially unstretched when the collar is at A.
Determine the magnitude of the average friction force exerted on the collar when the velocity of the collar at C is 3.66 m/s . The spring is initially unstretched when the collar is at A.
Determine the magnitude of the…

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A two degrees of freedom mass spring system is fixed at one end, where independent masses can move only in the vertical direction. Considering the system as finite elements, determine the vertical displacement for each mass. Also draw the free body diagram of this system.
Use 'X' KN/m as the stiffness value for all the springs and 'Y' Kg as the value for all masses.
Where,
'X'= (63)
'Y'= (93)

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