The electric field of an electromagnetic wave oscillates in the y direction and the Poynting vector is given by S(x , t) (100 W m 2 ) cos 2 10x (3 10 9 )t i where x is in meters and t is in seconds (a) What is the direction of propagation of the wave (b) Find the wavelength and the frequency (c) Fi...

a The wave propagates in the positive x direction b 2 k 0 ...

The electric field of an electromagnetic wave oscillates in the y direction and the Poynting vector is

Question:

The electric field of an electromagnetic wave oscillates in the y direction and the Poynting vector is given by

S(x , t) = (100 W / m²) cos² [10x - (3 ×10⁹)t]i

where x is in meters and t is in seconds.

(a) What is the direction of propagation of the wave?

(b) Find the wavelength and the frequency.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

See More Books

Question Posted: Nov 29, 2011 08:03 AM

See More Questions

The electric field of an electromagnetic wave in free space is given by E x = 0 E y = Ecos(t - kx) E z = 2Esin(t - kx) where E = 1 kVm -1 . Find (i) the direction of propagation, (ii) the...
The electric field of an electromagnetic wave in a vacuum is E y = (20.0 V/m) cos [(6.28 10 8 )x - t], where x is in m and t is in s. What are the waves (a) Wavelength, (b) Frequency, (c) Magnetic...
The magnitude of the electric field of an electromagnetic wave increases from 315 to 945 N/C. (a) Determine the wave intensities for the two values of the electric field. (b) What is the magnitude of...
The graph above is the U.S. market for some imported good. Supply is a flat curve. The U.S. can import the Chinese good for $40 and the Mexican good for $48. Assume the U.S. imposes $10 tariffs on...
Kirk Corporation has 22,500 shares outstanding of $7 par value, 9% preferred stock, and 45,000 shares outstanding of $7 par-value common stock. In its first 5 years of operation, the company paid the...
On June 1, Fignon Company recalls bonds with a face value of $200,000 and a current book value of $190,000. Fignon pays $192,000 to retire the bonds. Prepare the journal entry to record the...
The balance sheet of Lennox Health Foods, at December 31, 2007, reported 100,000 shares of no-par common stock authorized, with 30,000 shares issued and a Common Stock balance of $\$ 180,000$....
Briefly describe some of the similarities and differences between U.S. GAAP and iGAAP with respect to the accounting for inventories.
[The following information applies to the questions displayed below.} Project Y requires a $313,500 investment for new machinery with a four-year life and no salvage value. The project yields the...
A wind turbine with a 50-m-diameter rotor is rotating at 25 rpm under steady winds at an average velocity of 10 m/s. The electrical power output from the turbine is 375 kW. The combined efficiency of...
A laser pulse has an energy of 20 J and a beam radius of 2 mm. The pulse duration is 10 ns and the energy density is constant within the pulse. (a) What is the spatial length of the pulse? (b) What...
A pulsed laser fires a 1000-MW pulse of 200-ns duration at a small object of mass 10 mg suspended by a fine fiber 4 cm long. If the radiation is completely absorbed without other effects, what is the...
Four laboratories are being used to perform chemical analysis. Samples of the same material are sent to the laboratories for analysis as part of the study to determine whether or not they give, on...
Identify the research scenario, including the relevant independent and dependent variables. Develop a hypothetical research scenario that would necessitate the use of a Regression-Discontinuity...
Identify the assignment technique to be used. Discuss whether it will be experimental or quasi-experimental research. Develop a hypothetical research scenario that would necessitate the use of a...
The Google effect describes our tendency to place our trust in a search engine without bothering to think for ourselves. Do you agree that this is a problem? If so, what do you think might be the...
Discuss the sampling strategy and technique used to access the appropriate sample. Develop a hypothetical research scenario that would necessitate the use of a Regression-Discontinuity Posttest-Only...
Identify the variable and what criteria will be used as the cutoff score for group assignment. Discuss whether it will be experimental or quasi-experimental research. Develop a hypothetical research...
Which basic method(s) of coordination is (are) most likely to be found in a pure research laboratory? On a football team? In a supermarket?
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to glucose 1phosphate. Classify how each event affects the rate of glycogen breakdown...
What are the risks to a corporate investor buying preferred stock?
The surface tension of a liquid can be determined by measuring the force F needed to just lift a circular platinum ring of radius r from the surface of the liquid. (a) Find a formula for y in terms...
Find the tension in the two wires supporting the traffic light shown in Fig 9-46. 37 53 33 kg
How close to the edge of the 20.0-kg table shown in Fig. 9-47 can a 66.0-kg person sit without tipping it over? 2.20 m 0.80 m 1.20 m 0.50 m
Collins Technical Institute (CTI), a school owned by Carolyn Collins, provides training to individuals who pay tuition directly to the school. CTI also offers training to groups in off-site...
Darla's Dresses uses the perpetual inventory system. 7 - 1 : DD purchases a dress on account from Valentino for $ 2 0 , 0 0 0 cash. The delivery terms are FOB Shipping Point. - 7 - 1 : Pay delivery...
The Dholakia Ditch Digging Company needs to raise capital. They offer a bond with coupon payments of $5,000 payable once every three years. The annuity lasts for exactly 30 years with the last...

The electric field of an electromagnetic wave oscillates in the y direction and the Poynting vector is

Question:

Step by Step Answer:

a The wave propagates in the positive x direction b 2 k 0...View the full answer

Fundamentals of Ethics for Scientists and Engineers

Students also viewed these Electricity and Magnetism questions