EBK PHYSICAL SCIENCE
12th Edition
ISBN: 9781260411393
Author: Tillery
Publisher: MCG COURSE
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Chapter 7, Problem 11PEB
To determine
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A positively charged disk has a uniform charge per unit area σ.
dq
R
P
x
The total electric field at P is given by the following.
Ek [2 -
x
(R² + x2) 1/2
Sketch the electric field lines in a plane perpendicular to the plane of the disk passing through its center.
Consider a closed triangular box resting within a horizontal electric field of magnitude E = 8.02 104 N/C as shown in the figure below.
A closed right triangular box with its vertical side on the left and downward slope on the right rests within a horizontal electric field vector E that points from left to right. The box has a height of 10.0 cm and a depth of 30.0 cm. The downward slope of the box makes an angle of 60 degrees with the vertical.
(a) Calculate the electric flux through the vertical rectangular surface of the box. kN · m2/C(b) Calculate the electric flux through the slanted surface of the box. kN · m2/C(c) Calculate the electric flux through the entire surface of the box. kN · m2/C
The figure below shows, at left, a solid disk of radius R = 0.600 m and mass 75.0 kg.
Tu
Mounted directly to it and coaxial with it is a pulley with a much smaller mass and a radius of r = 0.230 m. The disk and pulley assembly are on a frictionless axle. A belt is wrapped around the pulley and connected to an electric motor as shown on the right. The turning motor gives the disk
and pulley a clockwise angular acceleration of 1.67 rad/s². The tension T in the upper (taut) segment of the belt is 145 N.
(a) What is the tension (in N) in the lower (slack) segment of the belt?
N
(b) What If? You replace the belt with a different one (one slightly longer and looser, but still tight enough that it does not sag). You again turn on the motor so that the disk accelerates clockwise. The upper segment of the belt once again has a tension of 145 N, but now the tension in
the lower belt is exactly zero. What is the magnitude of the angular acceleration (in rad/s²)?
rad/s²
Chapter 7 Solutions
EBK PHYSICAL SCIENCE
Ch. 7 - 1. Which of the following is luminous?
a. Moon
b....Ch. 7 - Prob. 2ACCh. 7 - Prob. 3ACCh. 7 - Prob. 4ACCh. 7 - 5. Light interacts with matter by which...Ch. 7 - Prob. 6ACCh. 7 - 7. Light is said to travel in straight-line paths,...Ch. 7 - 8. The image you see in a mirror is
a. a real...Ch. 7 - Prob. 9ACCh. 7 - Prob. 10AC
Ch. 7 - Prob. 11ACCh. 7 - 12. The component colors of sunlight were first...Ch. 7 - 13. The color order of longer-wavelength to...Ch. 7 - Prob. 14ACCh. 7 - 15. Polarization of light is best explained by...Ch. 7 - 16. Light in one plane is transmitted and light in...Ch. 7 - Prob. 17ACCh. 7 - Prob. 18ACCh. 7 - Prob. 19ACCh. 7 - Prob. 20ACCh. 7 - 21. Fiber optics transmits information using
a....Ch. 7 - 22. A luminous object
a. reflects a dim blue-green...Ch. 7 - Prob. 23ACCh. 7 - 24. The difference in the light emitted from a...Ch. 7 - Prob. 25ACCh. 7 - 26. An image that is not produced by light rays...Ch. 7 - Prob. 27ACCh. 7 - Prob. 28ACCh. 7 - 29. Which of the following can only be explained...Ch. 7 - 30. The polarization behavior of light is best...Ch. 7 - Prob. 31ACCh. 7 - Prob. 32ACCh. 7 - Prob. 33ACCh. 7 - Prob. 34ACCh. 7 - 35. The electromagnetic wave model defines an...Ch. 7 - 36. Of the following, the electromagnetic wave...Ch. 7 - 37. Of the following, the electromagnetic wave...Ch. 7 - Prob. 38ACCh. 7 - 39. Green grass absorbs
a. yellow light.
b. only...Ch. 7 - Prob. 40ACCh. 7 - Prob. 41ACCh. 7 - Prob. 42ACCh. 7 - Prob. 43ACCh. 7 - Prob. 44ACCh. 7 - 45. Polaroid sunglasses work best in eliminating...Ch. 7 - 46. The condition of farsightedness, or hyperopia,...Ch. 7 - Prob. 47ACCh. 7 - Prob. 48ACCh. 7 - 49. The special theory of relativity is
a. a new...Ch. 7 - Prob. 50ACCh. 7 - 51. Comparing measurements made on the ground to...Ch. 7 - 1. What determines if an electromagnetic wave...Ch. 7 - 2. What model of light does the polarization of...Ch. 7 - Prob. 3QFTCh. 7 - 4. What model of light is supported by the...Ch. 7 - Prob. 5QFTCh. 7 - Prob. 6QFTCh. 7 - 7. When does total internal reflection occur? Why...Ch. 7 - 8. Why does a highway sometimes appear wet on a...Ch. 7 - 9. How can you tell if a pair of sunglasses is...Ch. 7 - 10. What conditions are necessary for two light...Ch. 7 - 11. Explain why the intensity of reflected light...Ch. 7 - Prob. 12QFTCh. 7 - Prob. 13QFTCh. 7 - Prob. 14QFTCh. 7 - 1. Clarify the distinction between light...Ch. 7 - 2. Describe how you would use questions alone to...Ch. 7 - 3. Use a dialogue as you “think aloud."...Ch. 7 - 4. Compare and contrast the path of light through...Ch. 7 - 5. Analyze how the equation E = hf could mean that...Ch. 7 - 6. How are visible light and a radio wave...Ch. 7 - Prob. 1PEACh. 7 - Prob. 2PEACh. 7 - Prob. 3PEACh. 7 - Prob. 4PEACh. 7 - Prob. 5PEACh. 7 - Prob. 6PEACh. 7 - Prob. 7PEACh. 7 - Prob. 8PEACh. 7 - Prob. 9PEACh. 7 - Prob. 10PEACh. 7 - Prob. 11PEACh. 7 - Prob. 12PEACh. 7 - Prob. 13PEACh. 7 - Prob. 14PEACh. 7 - Prob. 15PEACh. 7 - Prob. 1PEBCh. 7 - Prob. 2PEBCh. 7 - 3. How many minutes are required for a radio...Ch. 7 - 4. An incident light ray strikes a mirror with an...Ch. 7 - 5. The speed of light through a transparent...Ch. 7 - Prob. 6PEBCh. 7 - Prob. 7PEBCh. 7 - 8. The wavelength of light from a monochromatic...Ch. 7 - Prob. 9PEBCh. 7 - 10. At what rate must electrons in a wire vibrate...Ch. 7 - Prob. 11PEBCh. 7 - Prob. 12PEBCh. 7 - Prob. 13PEBCh. 7 - Prob. 14PEBCh. 7 - Prob. 15PEB
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