The broadcast antenna of an Am radio station is located at the edge of town. The station owners would like to beam all of the energy into town and none into the countryside, but a single antenna radiates energy equally in all directions. The attached figure shows two parallel antennas separated by a distance L. Both antennas bro
What was the historical scope of telecommunications? How has it changed? In what ways might it change in the future? How does IS fit into these trends?
It takes light 20 min to travel from Mars to Earth. How might this affect a conversation between an astronaut on Mars and people on Earth? Explain. Suppose an ultra-powerful telescope were used for visual communication. Would this telescope speed things up? Why?
(See attached file for full problem description) --- 20.25 Part A : At 20 degree C, what is the frequency of a sound wave in air with a wavelength of 17.0 cm ? Part B : What is the frequency of an electromagnetic wave with a wavelength of 17.0 cm ? Part C : What would be the wavelength of a sound wave in water t
Please see attached for assignment specifics. Thank-you
The average intensity of sunlight reaching the earth is 1390 W/m^2. A charge of 2.6 x 10^-8 C is placed in the path of this electromagnetic wave. (a) What is the magnitude of the maximum electric force that the charge experiences? (b) If the charge is moving at a speed of 3.7 x 10^4 m/s, what is the magnitude of the maximum m
1. If a child's temperament is not a good "fit" with the temperament of is caregiver, how can this slow down his socialization? 2. How do a person's peers socialize him? 3. What are the three broad categories of temperament people can have? 4. List several of the rather scary, ecological trends of society that challeng
See file attached for the questions. The textbook does not include the information about Coca-Cola, but the textbook's name is given (might help with the solutions for the questions asked). Thanks THE MANAGEMENT FRAMEWORK Textbook: Mullins, LJ 2002, Management and organizational behavior, 7th edition, Harlow; Financia
I'm working on this sample problem and am totally lost. "A vehicle located far above the survace of the sea transmits an electro-magnetic signal at the frequency f ..." (see attachment for complete problem - thanks!)
A diathermy machine generates an EM wave of 6.00-m wavelength. Find its frequency.
The axon of the neuron, the nerve cell of the human body, has a diameter of approximately 0.2 microns. how long does it take for EM waves to pass through the axon? (Assuming EM can pass through it.) How many cycles of EM waves occur during the above passage, using 1.50 x 10 to the 23rd power Hz.
The theatre is putting on a new musical and they are changing from traditional rifle microphones to radio microphone system. The theatre has some concerns over doing this, they are: transmitter operation with regard to power supplies, inter-modulation problems and choice of transmitter frequency band and output power. Please
Which of the following concepts applies to both sound waves and electromagnetic waves: (a) intensity? (b) polarization? Account for your answer.
Basic EM equation for electric field Questions and solution contains special EM symbols. please see attached in word document.
The wavelength of an electromagnetic wave is measured to be 600m. What is the frequency of the wave?
The speed of electromagnetic waves through vacuum or air is 3X10^8m/sec. Find the frequency of the green light with a wavelength of 5.4X10^-7m and the wavelength of radio waves broadcast at 900 kilohertz.
Although philosophy is divided into discrete inquiries, these areas have synergistic relationships and dependencies. Ontological issues are arguably the most important, serving as the ground of inquiries and repository for historical findings.