Daily Archives: March 9, 2021

20xx, Mercury Global Media, Inc.

20xx, Mercury Global Media, Inc. hired Sam Smith as a television producer in one of its television stations. At the time, Sam was 58 in N years old and had over 30 years experience in radio and television. A little over six months later, Mercury notified employees that it was selling that station and that the employees would receive special consideration for other positions with Mercury, including other radio and TV stations Internet video operations, and similar entities. Sam applied for a job as a video editor with one of Mercury’s subsidiaries but was not hired. A younger displaced employee was given the job. Sam was told that he was not hired because he was “overqualified and overspecialized. Sam files O a- Sam can argue that the Mercury’s….

how would this affect how long your battery could last?

LiC 6 + CoO 2 ? C 6 + LiCoO 2 The “specs” on my phone claim that it can do audio playback for up to 50 hours (treat as 2 sig figs), whereas it can do video playback for only 11 hours. Given the following information: Ideal Battery Voltage: 3.82 V (i.e. that is the overall electrical potential of the cell) Material Constraints: up to 0.0675 mol e- can be transferred before the battery is done. A) How much power does each function, audio and video, require? (The unit of power is W which is J/s) B) If the cell voltage were to decrease, how would that affect how long your battery could last? Explain your answer using 1-2 sentences

Determine how many units should the firm order for the periodic review system

Problem 1 Chapter 9: Sam’s Cat Hotel operates 52 weeks per year and uses a continuous review inventory system. It purchases kitty litter for $10.75 per bag. The following information is available about these bags Demand 85 bags/week Order cost $57/order Annual holding cost = 26% of cost per bag Desired cycle-service level = 90% Lead-time 2 weeks Standard deviation of weekly demand = 18 bags a) What is the economic order quantity (EOQ) for kitty litter? b) What would be the average time between orders (in weeks)? c) What should the reorder point R be? d) Assume that the firm decides to change to the periodic review system to control the inventory for kitty litter. The time between reviews, P, is the average time between orders as….

Define the term communication What is the communication process?

1. Define the term communication What is the communication process? Explain the different components of the communication process. Provide a specific example that relates to the communication process (you may use any of the examples we used in class, or create your own example). 2. 3. What is Integrated Marketing Communications? List and discuss the steps involved in created an integrated marketing communications plan. CHAPTER 2 -Corporate Image and Brand Management 5. What is one benefit of a strong corporate image in the eyes of the company? Briefly describe 6. What functions does the corporate image serve from a customer’s perspective? Choose a 4. why this benefit might be important to a company company you believe has a strong corporate image and state why. Then provide a proof….

Chapter 11 Current Liabilities and Payroll Accounting 499 four employees.

Chapter 11 Current Liabilities and Payroll Accounting 499 four employees. FICA Social Security taxes are 6.2% of the first $118,500 paid to each ICA Medicare taxes are 1.45% of gross pay. Also, for the first $7,000 paid to each em- ‘s FUTA taxes are 0.6% and SUTA taxes are 2.15%. The company is preparing its paring its empl ns at In. Problem 11 Payroll expenses, Palo aco aloma Co. has -3A comployee, and FICA Medic ee, the company’s ?etalculatio ns for the week ended August 25. Payroll records show the following information for the withholdings, and taxes P2 P3 mpany’s four employees. Gross Pay through Aug. 18 $117,400 117,600 Current Week Gross Pay Income Tax Withholding Name Da 4 Trey 5 Kiesha Chee $2,000 900 450 400 $284….

What is the angle of the transmitted wave in the lower halfspace, and what kind of wave is it (radiating or evanescent)?

Consider the reflection of a plane wave from an isovelocity fluid layer of thickness H overlying an isovelocity fluid halfspace for which c2 <>1 <>3 and p1 <>p2 <>p3:

a. What is the critical grazing angle for waves incident from medium 1?

b. If k2H 1, show that to leading order the plane-wave reflection coefficient reduces to the plane-wave reflection coefficient without the layer present.

Now, suppose that P1 = p3 <>p2 and c1= c3 <>2, and that the plane wave is incident at grazing angle  <> (c1=c2).

c. What is the angle of the transmitted wave in the lower halfspace, and what kind of wave is it (radiating or evanescent)?

d. What is the form of the solution in the layer?

e. Derive the expression for the reflection coefficient in the upper halfspace and the transmission coefficient….

Describe the nature of the numerical problem, and rewrite into a form which remedies the problem.

Make a direct numerical implementation of the expression in (2.146) for the wavenumber representation of the field in an ideal waveguide. Allow the horizontal wavenumber to be complex.

a. For sound speed 1500 m/s and depth 100 m, compute the wavenumber kernel at 20 Hz for source and receiver both at depth 36 m. Sample the kernel at 200 points equidistantly placed over the interval  where kw is the water wavenumber. Let the imaginary value of the horizontal wavenumber be kw=100 to avoid the modal singularities.

b. Determine the wavenumber interval for which your code produces a result which is qualitatively consistent with

c. Describe the nature of the numerical problem, and rewrite into a form which remedies the problem. Implement it and compare your result to (qualitatively).

 

Describe the frequency dispersion characteristics of the Scholte wave.

Consider the problem of a water halfspace with sound speed c1 and density 1 overlying an elastic halfspace with compressional speed cp, shear speed cs, and density p2.

a. Show that the depth-dependent Green’s function for a point source in the water, at height H above the interface, has a denominator of the form,

where ks is the shear wavenumber in the solid halfspace, kr is the horizontal wavenumber and kz;1 and kz;2 are the vertical wavenumbers for compressional waves in the two media, and z;2 is the vertical wavenumber for shear waves.

b. Show that d.k/ always has a real root kSCH,  where k1 is the wavenumber for acoustic waves in the water. The wave associated with this pole is called the Scholte wave.

c. Describe the frequency dispersion characteristics of the Scholte….

Discuss the physical significance of the real and imaginary part of the ro

The denominator of the depth-dependent Green’s function for the fluid–elastic halfspace problem described in the previous problem also has a symmetric pair of complex roots which become important for the propagation characteristics in certain cases.

a. Employ a numerical root finding scheme (e.g., a complex Newton–Raphson scheme) to determine the complex root with positive real value. (Warning: take care how you choose the branch cuts for the square root).

b. Assuming the sound speed in water to be 1500 m/s and the density 1000 kg/m3, compressional speed 5000 m/s and density 2500 kg/m3 in the solid, map the position of the root as a function of shear speed in the range 1500–3500m/s.

c. Discuss the physical significance of the real and imaginary part of the root.

 

Discuss the cutoff properties and the static limits of the phase and group velocities for the two fundamental modes.

An infinite elastic plate of thickness 2h is made of an elastic material with wave speeds cp and cs for compressional and shear waves, respectively, and density s. The plate is assumed to have free surfaces.

a. Show that the characteristic equation for the modes in the plate has the form

where the “+” corresponds to symmetric modes and the “-” corresponds to antisymmetric modes. ks is the shear wavenumber, and kz and kz are the vertical wavenumbers for compression and shear, respectively. kr is the horizontal wavenumber.

b. Show that in the low-frequency limit,

the characteristic equations reduce to,

Where  is a dimensionless horizontal wavenumber,

c. Solve the frequency equation numerically and graphically represent the ! kr relations for the first (fundamental) symmetric and antisymmetric modes for the elastic….