4. As noted in the preceding example, the Sun delivers about 1 000 W/m² of energy to theEarth's surface via electromagnetic radiation. (a) Calculate the total power that is incident on aroof of dimensions 8.00 m ×20.0 m. (b) Determine the radiation pressure and the radiation forceexerted on the roof, assuming that the roof covering is a perfect absorber.

Answered: 4. As noted in the preceding example,…

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 13.0-mW helium-neon laser emits a beam of circular cross section with a diameter of 3.10 mm. (a) Find the maximum electric field in the beam. (b) What total energy is contained in a 1.00-m length of the beam? (c) Find the momentum carried by a 1.00-m length of the beam. Step 1 We will find the reasonable size of the electric field in a beam of bright light. At the speed of light, only a small fraction of a joule is contained in a meter-length beam. The momentum of the beam is a very small fraction of a kg. m/s. Light is described by energy and momentum but possesses no mass. Step 2 We will use the equation relating the intensity of light to the wave amplitude. From the definition of intensity, we can find the energy content of the beam of light. Then the relationship between momentum, energy, and the speed of light will give us the momentum of a length of the beam. Step 3 The intensity of light I is given by the average magnitude of the Poynting vector. We have 2 I = S₂ avg P Tr²…
ses Reports e-Services - Academic Departments ETC - CIMS The correct conversion of speed limit of 65 mi/h in terms of SI unit is (Given 1 mile = 1.609 km) a. 16.67 m/s O b. 234 m/s O c. 29.05 m/s O d. 18.06 m/s Candela is the S.I. unit for Select one: a. Luminous Intensity Ob. Electric Potential O c. Amount of Substance O d. Acceleration followr: Ar -56 Ay = -4.7. What is the angle between vector A and
Why this statement is true?The speed of electromagnetic waves in a vacuum is the same for all waves regardless of wavelength
The intensity of sunlight at the Earth’s distance from the Sun is 1 370 W/m2. Assume the Earth absorbs all the sunlight incident upon it. (a) Find the total force the Sun exerts on the Earth due to radiation pressure. (b) Explain how this force compares with the Sun’s gravitational attraction.
In which one of the following lists are different types of electromagneticwaves ranked in order of increasing wavelength?(a) x - rays, gamma rays, visible light, radio waves (b) visiblelight, radio waves, gamma rays, x - rays (c) gamma rays, x - rays,visible light, radio waves (d) gamma rays, x - rays, radio waves,visible light.
Assume the intensity of solar radiation incident on the cloud tops of the Earth is 1 871 W/m2. (a) Taking the average Earth-Sun separation to be 1.496 x 1011 m, calculate the total power radiated by the Sun. W (b) Determine the maximum value of the electric field in the sunlight at the Earth's location. kV/m (c) Determine the maximum value of the magnetic field in the sunlight at the Earth's location. uT
A plane electromagnetic sinusoidal wave of frequency 26.4 MHz travels in free space. The speed of light is 2.99792 × 108 m/s.
All Electromagnetic waves are a. invisible to human eye except light waves O b. visible to human eye except light waves O c. visible to human eye O d. invisible to human eye
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question 18 Sunlight reaches the ground with an intensity of about 1.00 kW/m2. A sunbather has a body surface area of 0.9 m2 facing the sun while reclining on a beach chair on a clear day. (b) What pressure does the sunlight exert if it is absorbed? (a) Calculate the amount of energy from direct sunlight that reaches the sunbathers skin each second. W (b) Calculate the pressure that the sunlight exert on the person if it is absorbed. N/m2
An earth-orbiting satellite has solar energy–collecting panels with a total area of 4.0 m2 . If the sun’s radiation is perpendicular to the panels and is completely absorbed, find the average solar power absorbed and the average radiation-pressure force
Solar radiation reaches Earth at a rate of about 1,400 W/m2. If all this energy were absorbed, what would be the average force exerted by radiation pressure on a square meter oriented at right angles to the sunlight?

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