Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 15, Problem 8CC
To determine
The reason for the belief that carbonaceous chondrites preserve some amount of primal material that was responsible for the origin of our solar system.
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An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density of 1.10 × 103 kg/m³. The tire can be modeled as consisting of two flat sidewalls and a tread region. Each of the sidewalls has an inner radius of 16.5 cm and an outer radius of 30.5 cm as
shown, and a uniform thickness of 0.600 cm. The tread region can be approximated as having a uniform thickness of 2.50 cm (that is, its inner radius is 30.5 cm and outer radius is 33.0 cm as shown) and a width of 19.2 cm. What is the moment of inertia (in kg . m²) of the tire about an
axis perpendicular to the page through its center?
33.0 cm
30.5 cm
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John is pushing his daughter Rachel in a wheelbarrow when it is stopped by a brick 8.00 cm high (see the figure below). The handles make an angle of 0 = 17.5° with the ground. Due to the weight of Rachel and the wheelbarrow, a downward force of 403 N is exerted at the center of the
wheel, which has a radius of 16.0 cm. Assume the brick remains fixed and does not slide along the ground. Also assume the force applied by John is directed exactly toward the center of the wheel. (Choose the positive x-axis to be pointing to the right.)
i
(a) What force (in N) must John apply along the handles to just start the wheel over the brick?
N
(b) What is the force (magnitude in kN and direction in degrees clockwise from the -x-axis) that the brick exerts on the wheel just as the wheel begins to lift over the brick?
magnitude
direction
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° clockwise from the -x-axis
Your neighbor designs automobiles for a living. You are fascinated with her work. She is designing a new automobile and needs to determine how strong the front suspension should be. She knows of your fascination with her work and your expertise in physics, so she asks you to determine
how large the normal force on the front wheels of her design automobile could become under a hard stop, when the wheels are locked and the automobile is skidding on the road. She gives you the following information. The mass of the automobile is m₂ = 1.10 × 103 kg and it can carry
five passengers of average mass m = 80.0 kg. The front and rear wheels are separated by d = 4.45 m. The center of mass of the car carrying five passengers is dCM = 2.25 m behind the front wheels and hCM = 0.630 m above the roadway. A typical coefficient of kinetic friction between
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Chapter 15 Solutions
Universe
Ch. 15 - Prob. 1CCCh. 15 - Prob. 2CCCh. 15 - Prob. 3CCCh. 15 - Prob. 4CCCh. 15 - Prob. 5CCCh. 15 - Prob. 6CCCh. 15 - Prob. 7CCCh. 15 - Prob. 8CCCh. 15 - Prob. 9CCCh. 15 - Prob. 10CC
Ch. 15 - Prob. 1CLCCh. 15 - Prob. 2CLCCh. 15 - Prob. 1QCh. 15 - Prob. 2QCh. 15 - Prob. 3QCh. 15 - Prob. 4QCh. 15 - Prob. 5QCh. 15 - Prob. 6QCh. 15 - Prob. 7QCh. 15 - Prob. 8QCh. 15 - Prob. 9QCh. 15 - Prob. 10QCh. 15 - Prob. 11QCh. 15 - Prob. 12QCh. 15 - Prob. 13QCh. 15 - Prob. 14QCh. 15 - Prob. 15QCh. 15 - Prob. 16QCh. 15 - Prob. 17QCh. 15 - Prob. 18QCh. 15 - Prob. 20QCh. 15 - Prob. 21QCh. 15 - Prob. 22QCh. 15 - Prob. 23QCh. 15 - Prob. 24QCh. 15 - Prob. 25QCh. 15 - Prob. 26QCh. 15 - Prob. 27QCh. 15 - Prob. 28QCh. 15 - Prob. 29QCh. 15 - Prob. 30QCh. 15 - Prob. 31QCh. 15 - Prob. 32QCh. 15 - Prob. 33QCh. 15 - Prob. 34QCh. 15 - Prob. 35QCh. 15 - Prob. 36QCh. 15 - Prob. 37QCh. 15 - Prob. 38QCh. 15 - Prob. 39QCh. 15 - Prob. 40QCh. 15 - Prob. 41QCh. 15 - Prob. 42QCh. 15 - Prob. 43QCh. 15 - Prob. 44QCh. 15 - Prob. 45QCh. 15 - Prob. 46QCh. 15 - Prob. 47QCh. 15 - Prob. 48QCh. 15 - Prob. 49QCh. 15 - Prob. 50QCh. 15 - Prob. 51QCh. 15 - Prob. 52QCh. 15 - Prob. 53QCh. 15 - Prob. 54QCh. 15 - Prob. 55QCh. 15 - Prob. 56QCh. 15 - Prob. 57QCh. 15 - Prob. 58QCh. 15 - Prob. 59QCh. 15 - Prob. 60Q
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