![10) The ocean has a relative permittivity ofEp 81 and a conductivity of ?= 4.0 [Sm]. The ocean water may be assumed to be nonmagnetic. Determine the dB of attenuation for a plane wave that propagates from the surface of the ocean to a depth of 100 [m], if the frequency is 750 [Hz] 4.67 dB](http://img.homeworklib.com/questions/e1e14360-b3a3-11eb-a2bb-690d9f7ee478.png?x-oss-process=image/resize,w_560)
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10) The ocean has a relative permittivity ofEp 81 and a conductivity of ?= 4.0 [Sm]....
2) The ocean saltwater has a relative permittivity of εr = 81 and a conductivity of...
2) The ocean saltwater has a relative permittivity of εr = 81 and a conductivity of a = 1S/m. (note: the conductivity is low, so you cannot use the good conductor approximation we discussed in class – you must use the fall equation for attenuation constant assuming &"'=0, and e' = {£). Determine: a. The stenuation (in dB) of a plane wave at f = 100MHz travelling 1km through the ocean. The US Navy operated a system called Seafarer, an...
Example: er a wave of frequency 1 MHz incident on seawater, having conductivity of 4 S/m,...
Example: er a wave of frequency 1 MHz incident on seawater, having conductivity of 4 S/m, and relative permittivity of 81. Find: The skin depth Phase velocity Attenuation constant Propagation constant
4) A parallel pole electromagnetic wave with a frequency of 10 kHz arrives from the air...
4) A parallel pole electromagnetic wave with a frequency of 10
kHz arrives from the air towards the ocean surface with an arrival
angle of Fi (i) = (80 + m) °. Here, since the electrical properties
of m = 2 and ocean water are ?? = 81, ?? = 1, ? = 4,
a) θt refraction angle, ? || Find the penetration coefficient and
the ocean depth where the electric field intensity decreases by 30
dB.
b) If a...
1. The magnetic field of a wave propagating through a certain nonmagnetic material is given by...
1. The magnetic field of a wave propagating through a certain nonmagnetic material is given by H-x30cos(10%-0. Sy) (mA/m) Find the following: (a) The direction of wave propagation. (b) The phase velocity (c) The wavelength in the material. (d) The relative permittivity of the material (e) The electric field phasor 2. A 60-MHz plane wave traveling in the -x-direction in dry soil with relative permittivity &4 has an electric field polarized along the z-direction. Assuming dry soil to be approximately...
9 show wrk A string that is 2.0 meters long is fixed at both ends and...
9 show wrk
A string that is 2.0 meters long is fixed at both ends and tightened until the wave speed is 18 m/s. What is the frequency of the standing wave shown in the figure? 27 Hz 110 Hz 54 Hz 81 Hz A 13,000-N vehicle is to be lifted by a 25-cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish this? Assume the pistons each have negligible weight. 5200...
Please work out 3 clearly and with units. Thanks! 1. A 10-g bullet travels vertically upwards...
Please work out 3 clearly and with units. Thanks!
1. A 10-g bullet travels vertically upwards at 1000 m/s, then strikes and passes through a 2.0-kg block initially at rest. The bullet emerges from the block with a speed of 400 m/s because it transfers momentum to the block. (a) How much momentum did the block gain? (b) How fast is the block now moving, and what is its kinetic energy? (c) Using energy considerations only, to what maximum height...
A low-loss dielectric is one with a small loss tangent, that is, (o/we) <1. We can...
A low-loss dielectric is one with a small loss tangent, that is, (o/we) <1. We can reduce (6.52) for this special case by applying a binomial series expansion to the value within the 6.3.1 Low-Loss Dielectrics interior square root portion of the equations. The expansion is n(n-1);- + (1 + x)" = 1 + nx + 2! and for x< 1 this can be approximated as (1 + x)" = 1+ nx So we have + 1+ (6.53) 08 Inserting...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
2) The ocean saltwater has a relative permittivity of εr = 81 and a conductivity of a = 1S/m. (note: the conductivity is low, so you cannot use the good conductor approximation we discussed in class – you must use the fall equation for attenuation constant assuming &"'=0, and e' = {£). Determine: a. The stenuation (in dB) of a plane wave at f = 100MHz travelling 1km through the ocean. The US Navy operated a system called Seafarer, an...
Example: er a wave of frequency 1 MHz incident on seawater, having conductivity of 4 S/m, and relative permittivity of 81. Find: The skin depth Phase velocity Attenuation constant Propagation constant
4) A parallel pole electromagnetic wave with a frequency of 10
kHz arrives from the air towards the ocean surface with an arrival
angle of Fi (i) = (80 + m) °. Here, since the electrical properties
of m = 2 and ocean water are ?? = 81, ?? = 1, ? = 4,
a) θt refraction angle, ? || Find the penetration coefficient and
the ocean depth where the electric field intensity decreases by 30
dB.
b) If a...
1. The magnetic field of a wave propagating through a certain nonmagnetic material is given by H-x30cos(10%-0. Sy) (mA/m) Find the following: (a) The direction of wave propagation. (b) The phase velocity (c) The wavelength in the material. (d) The relative permittivity of the material (e) The electric field phasor 2. A 60-MHz plane wave traveling in the -x-direction in dry soil with relative permittivity &4 has an electric field polarized along the z-direction. Assuming dry soil to be approximately...
9 show wrk
A string that is 2.0 meters long is fixed at both ends and tightened until the wave speed is 18 m/s. What is the frequency of the standing wave shown in the figure? 27 Hz 110 Hz 54 Hz 81 Hz A 13,000-N vehicle is to be lifted by a 25-cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish this? Assume the pistons each have negligible weight. 5200...
Please work out 3 clearly and with units. Thanks!
1. A 10-g bullet travels vertically upwards at 1000 m/s, then strikes and passes through a 2.0-kg block initially at rest. The bullet emerges from the block with a speed of 400 m/s because it transfers momentum to the block. (a) How much momentum did the block gain? (b) How fast is the block now moving, and what is its kinetic energy? (c) Using energy considerations only, to what maximum height...
A low-loss dielectric is one with a small loss tangent, that is, (o/we) <1. We can reduce (6.52) for this special case by applying a binomial series expansion to the value within the 6.3.1 Low-Loss Dielectrics interior square root portion of the equations. The expansion is n(n-1);- + (1 + x)" = 1 + nx + 2! and for x< 1 this can be approximated as (1 + x)" = 1+ nx So we have + 1+ (6.53) 08 Inserting...
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