A radio antenna broadcasts a 1.0 MHz radio wave with 25.0 kW of power. Assume that the radiation is emitted uniformly in all directions. For help with math skills, you may want to review: Mathematical Expressions Involving Squares For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Fields in a microwave oven. Part A What is the wave's intensity 28.0 km from the antenna? Express your answer with the appropriate units. ΜΑ Value ? Units Submit Request Answer ▼ Part B What is the electric field amplitude at this distance? Express your answer with the appropriate units. НА Value Submit Request Answer Provide Feedback ? Units

A radio antenna broadcasts a 1.0 MHz radio wave with 25.0 kW of power. Assume that the radiation is emitted uniformly in all directions. For help with math skills, you may want to review: Mathematical Expressions Involving Squares For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Fields in a microwave oven. Part A What is the wave's intensity 28.0 km from the antenna? Express your answer with the appropriate units. ΜΑ Value ? Units Submit Request Answer ▼ Part B What is the electric field amplitude at this distance? Express your answer with the appropriate units. НА Value Submit Request Answer Provide Feedback ? Units

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter34: Maxwell’s Equations And Electromagnetic Waves

Section: Chapter Questions

Problem 36PQ

See similar textbooks

Similar questions

An outdoor WIFi unit for a picnic area has a 100-mW output and a range of about 30 m. What output power would reduce its range to 12 m for use with the same devices as before? Assume there are no obstacles in the way and that microwaves into the ground are simply absorbed.
A microwave oven operates at 2.90 GHz. What is the wavelength of the radiation produced by this appliance? Express the wavelength numerically in nanometers.
If you wish to observe features that are around the size of atoms, say 5.5 × 10-10 m, with electromagnetic radiation, the radiation must have a wavelength of about the size of the atom itself. a. If you had a microscope which was capable of doing this, what would the frequency of electromagnetic radiation be, in hertz, that you would have to use? f = b. What type of electromagnetic radiation would this be?
Assume the radiation from a heat lamp is monochromatic, with a wavelength of 1.5 μm . I =3.313 kW/m^2. a. What is the peak electric field strength, in kilovolts per meter? b. Find the peak magnetic field strength, in microtesla. c. How long, in seconds, will it take to increase the temperature of the 3.95-kg shoulder by 2.00°C, assuming that the shoulder absorbs all the radiation from the lamp and given that its specific heat is 3.47 × 103 J/(kg⋅°C)?
What is the radiation pressure 1.2 m away from a 600 W lightbulb? Assume that the surface on which the pressure is exerted faces the bulb and is perfectly absorbing and that the bulb radiates uniformly in all directions. Number Units Use correct number of significant digits; the tolerance is +/-1 in the 2nd significant digit
Please fill out the template with the work for this problem. Note that you need to have a picture, a list of knowns and unknowns, the general equation/s you will use, the math steps to solve for the unknown, only plug in the numbers after you have solved for the unknown, and the answer with units included. The magnetic field of an electromagnetic wave is described by By = B0cos(kx - ωt), where B0 = 6.5 × 10-6 T and ω = 4.5 × 107 rad/s. Calculate the electric field E0 in volts per meter.
Calculate the wavelengths of a 1.44-GHz cell phone signal. Express your answer in meters. Normal format with 3 SF.
Far-Infrared value assigned is 17 3. When electromagnetic waves strike an area of an object’s surface for a given time, energy is transferred to the surface. Given the time frame for the study done by (Loturco I, 2016) what was the energy transferred to the soccer players’ body? According to (Schnur, 2017) the average adult BSA is 1.7 m2 (1.9 m2 for adult males and 1.6 m2 for adult females).
Microwaves have an intensity of 1.79 W/m2 at a distance 1.00 meter from the transmitter. What will be the intensity at a distance of 244 centimeters from the source? (State answer with 3 digits right of decimal. Do not include unit.) I Question 2 of A Click Submit to complete this assessment.
1:.0 O %).. N O a all zain 1Q O 24 May 2021 a... H.W: If a (10 mJ) laser pointer creates a spot that is 5 mm in diameter in a 30 second, determine the radiation pressure on a screen that absorbs 40% of the light that strikes it.
Solve both. Otherwise leave it for other tutor. Calculate the wavelength λ1 for gamma rays of frequency f1 = 6.30×10^21 Hz. Calculate the wavelength λ2 for visible light of frequency f2 = 5.75×1014 Hz .
A united4sisd.schoology.com/common-assessment-delivery/start/4726113000?action=Donresume&submissionld%3D437401404 EM Waves Night vision goggles use infrared rays to locate things at night. They have a wavelength of approximately 7.0 x 107 m. What is the frequency of an infrared ray? (c = 3.00x10 m/s) O 2.33 x10 15 Hz O 1.74 x1055 Hz O 4.28 x1014 HZ O 210.0 Hz 2 3 4 6 78 10 E Revie 2 Type here to search