College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:Find the amplitude of electric and magnet
fields in a parallel beam of light of intensity 4.0 W/m².
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- please answer the question in the image.arrow_forwardElectromagnetic radiation from a 5.50 mW laser is concentrated on a 2.50 mm2 area. (a) What is the intensity in W/m2? W/m2 (b) Suppose a 6.00 nC static charge is in the beam. What is the maximum electric force (in N) it experiences? (Enter the magnitude.) N (c) If the static charge moves at 300 m/s, what maximum magnetic force (in N) can it feel? (Enter the magnitude.) Narrow_forwardA 1.00-m² solar panel on a satellite that keeps the panel oriented perpendicular to radiation arriving from the Sun absorbs 1.40 kJ of energy every second. The satellite is located at 1.00 AU from the Sun. (The Earth-Sun distance is approximately 1.00 AU.) How long would it take an identical panel that is also oriented perpendicular to the incoming radiation to absorb the same amount of energy, if it were on an interplanetary exploration vehicle 2.85 AU from the Sun? Sarrow_forward
- Sunlight, with an intensity of 643 W/m², strikes a flat collecting surface perpendicularly and is totally absorbed. The area of the surface is 8.55 m². What is the force F in micronewtons that acts on the surface due to the sunlight? F = μεarrow_forwardAt an instant in time, the electric and magnetic fields of an electromagnetic wave are given by É = -3.81 × 103k V/m and B = -1.27 x 10¬1'i T. Find the Poynting vector for this wave. (Express your answer in vector form.) S = W/m?arrow_forward(a) The distance to a star is approximately 4.97 × 10¹8 m. If this star were to burn out today, in how many years would we see it disappear? years (b) How long does it take sunlight to reach Earth? minutes (c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 x 105 km.) Sarrow_forward
- A radar pulse returns to the transmitter–receiver after a total travel time of 4.00 3 1024 s. How far away is the object that reflected the wave?arrow_forward(a) Suppose a star is 8.59 x 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth from the surface of this star. How long (in years) would it take to reach Earth? years (b) The Sun is 1.50 x 1011 m from Earth. How long (in minutes) does it take sunlight to reach Earth? minutes (c) The Moon is 3.84 x 108 m from Earth. How long (in s) does it take for a high-intensity laser beam to travel from Earth to the Moon and back?arrow_forwardAn electromagnetic wave with a frequency of 4.72 x 1014 Hz has a speed of 1.71 x 108 m/s when it travels through a medium. What is the index of refraction of that medium?arrow_forward
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