EBK APPLIED PHYSICS
11th Edition
ISBN: 9780134241173
Author: GUNDERSEN
Publisher: YUZU
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Chapter 22, Problem 5RQ
(a)
To determine
Explain how the U.S. flag look like through a piece of red glass.
(b)
To determine
Explain how the U.S. flag look like through a piece of blue glass.
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The figure below shows, at left, a solid disk of radius R = 0.600 m and mass 75.0 kg.
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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?
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(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
A bridge truss extends x = 217 m across a river (shown in the figure below) where 0 = 40°. The structure is free to slide horizontally to permit thermal expansion. The structural components are connected by pin joints, and the masses of the bars are small compared with the mass of a
1300 kg car at the center. Calculate the force of tension or compression in each structural component (in N).
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Chapter 22 Solutions
EBK APPLIED PHYSICS
Ch. 22 - Prob. 1RQCh. 22 - What property of light determines its color?Ch. 22 - Name the light waves whose wavelengths are (a)...Ch. 22 - What is the apparent color of a green dress in a...Ch. 22 - Prob. 5RQCh. 22 - Prob. 6RQCh. 22 - What is a complementary color? Name the complement...Ch. 22 - How are the primary pigments related to the...Ch. 22 - Prob. 9RQCh. 22 - Prob. 10RQ
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- no ai pleasearrow_forward= Consider the schematic of the molecule shown, with two hydrogen atoms, H, bonded to an oxygen atom, O. The angle between the two bonds is 106°. If the bond length r 0.106 nm long, locate the center of mass of the molecule. The mass mH of the hydrogen atom is 1.008 u, and the mass mo of the oxygen atom is 15.9999 u. (Use a coordinate system centered in the oxygen atom, with the x-axis to the right and the y-axis upward. Give the coordinates of the center of mass in nm.) XCM YOM = = H 53° 53° nm nm r Harrow_forwardAn approximate model for a ceiling fan consists of a cylindrical disk with four thin rods extending from the disk's center, as in the figure below. The disk has mass 2.60 kg and radius 0.200 m. Each rod has mass 0.850 kg and is 0.700 m long. HINT (a) Find the ceiling fan's moment of inertia about a vertical axis through the disk's center. (Enter your answer in kg • m².) kg. m² (b) Friction exerts a constant torque of magnitude 0.113 N m on the fan as it rotates. Find the magnitude of the constant torque provided by the fan's motor if the fan starts from rest and takes 15.0 s and 17.5 full revolutions to reach its maximum speed. (Enter your answer in N. m.) N.marrow_forward
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