Question 5 How are electromagnetic and mechanical waves different? A Mechanical waves can only travel through a medium. Electromagnetic waves can also travel through a complete vacuum. Mechanical waves only travel through the vibration of liquids. Electromagnetic waves travel through the vibration of a medium. C Mechanical waves can only travel through a complete vacuum. Electromagnetic waves can also travel through a medium. Mechanical waves only travel through the vibration of charged particles. Electromagnetic waves travel through the vibration of a medi

Question 5 How are electromagnetic and mechanical waves different? A Mechanical waves can only travel through a medium. Electromagnetic waves can also travel through a complete vacuum. Mechanical waves only travel through the vibration of liquids. Electromagnetic waves travel through the vibration of a medium. C Mechanical waves can only travel through a complete vacuum. Electromagnetic waves can also travel through a medium. Mechanical waves only travel through the vibration of charged particles. Electromagnetic waves travel through the vibration of a medi

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A beam of light passes from air into fused quartz. Which of the following is true about the electromagnetic wave as it passes into the new medium? Material Fluorite Fused Quartz Sapphire Diamond ... Index of Refraction 1.40 1.50 1.79 2.42 A) Wavelength stays constant, frequency and speed decrease B) Speed stays constant, frequency increases, wavelength decreases C Frequency stays constant, speed decreases, wavelength increases D Frequency stays constant, speed and wavelength decrease
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consider a bright star in our sky. assume its distance from earth is 38.3 light-year (ly) and its power output is 4.00 * 10^28 W. about 100 times that of the sun. one light-year is the distance traveled by light through a vacuum in one year. a. find the intensity of the starlight at the earth. b. find the power of the starlight at the earth intercepts ( the radius of earth is 6.38 * 10^6 m .)
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QUESTION 5 The distance between Planet X and a star is 1.2 x 1011 m. At the surface of Planet X, the average intensity of the radiation from the star is 5355 W/m2. If the star radiates isotropically, which of the following is the average power of the star? 5.47 x 1027 w
Is it possible for an electromagnetic wave to travel through a vacuum? Explain. Yes, unlike a mechanical wave the electromagnetic wave does NOT require a medium in which to propagate.No, like a mechanical wave the electromagnetic wave requires a medium in which to propagate. There is not enough information to determine whether the wave propagates or not.
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Electromagnetic waves are a form of radiation that propagates through space and the atmosphere without the need for a material medium. They consist of oscillating electric and magnetic fields that alternate perpendicular to each other and to the direction of propagation. Electromagnetic waves emitted by transmission antennas, such as radio antennas, travel through the atmosphere at the speed of light and can be captured by receiving devices, such as radios, televisions and other electronic devices, allowing distance communication and the transmission of information. Statement: Radio station antennas emit electromagnetic waves that propagate in the atmosphere at a speed of around 3.0x10^5 km/s and with frequencies that vary from one station to another. If a radio emits a wave of frequency 101.5 MHz then its wavelength is approximately equal to: Question options: a) 0.31 m b) 5.15m c) 3.63m d) 1.52 m e) 2.96 m
7. A flashlight produces an average intensity of 476 W/m^2 shining on a wall. What is the maximum magnetic field strength in the light waves striking the wall? 3.80E-06 T 2.00E-06 T 1.60E-06 T 1.20E-06 T
Which one of the following statements is true of an electromagnetic (EM) wave? OEM waves carry electrical charge. EM waves consist of transverse oscillating electric and magnetic fields. OEM waves do not carry energy. EM waves travel at different speeds in a vacuum, depending on their frequency.