(II) A person stands on a platform, initially at rest, that can rotate freely without friction. The moment of inertia of the person plus the platform is I P . The person holds a spinning bicycle wheel with its axis horizontal. The wheel has moment of inertia I W and angular velocity ω W . What will be the angular velocity ω P of the platform if the person moves the axis of the wheel so that it points ( a ) vertically upward, ( b ) at a 60° angle to the vertical, ( c ) vertically downward? ( d ) What will ω P be if the person reaches up and stops the wheel in part ( a )?
(II) A person stands on a platform, initially at rest, that can rotate freely without friction. The moment of inertia of the person plus the platform is I P . The person holds a spinning bicycle wheel with its axis horizontal. The wheel has moment of inertia I W and angular velocity ω W . What will be the angular velocity ω P of the platform if the person moves the axis of the wheel so that it points ( a ) vertically upward, ( b ) at a 60° angle to the vertical, ( c ) vertically downward? ( d ) What will ω P be if the person reaches up and stops the wheel in part ( a )?
(II) A person stands on a platform, initially at rest, that can rotate freely without friction. The moment of inertia of the person plus the platform is IP. The person holds a spinning bicycle wheel with its axis horizontal. The wheel has moment of inertia IW and angular velocityωW. What will be the angular velocity ωP of the platform if the person moves the axis of the wheel so that it points (a) vertically upward, (b) at a 60° angle to the vertical, (c) vertically downward? (d) What will ωP be if the person reaches up and stops the wheel in part (a)?
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
Helicobacter pylori (H. pylori) is a helically-shaped bacterium that is usually found in the stomach. It burrows through the gastric mucous
lining to establish an infection in the stomach's epithelial cells (see photo). Approximately 90% of the people infected with H. pylori will
never experience symptoms. Others may develop peptic ulcers and show symptoms of chronic gastritis. The method of motility of H.
pylori is a prokaryotic flagellum attached to the back of the bacterium that rigidly rotates like a propeller on a ship. The flagellum is
composed of proteins and is approximately 40.0 nm in diameter and can reach rotation speeds as high as 1.50 x 103 rpm. If the speed
of the bacterium is 10.0 μm/s, how far has it moved in the time it takes the flagellum to rotate through an angular displacement of 5.00
* 10² rad?
Zina Deretsky, National Science
Foundation/Flickr
H. PYLORI CROSSING MUCUS LAYER OF STOMACH
H.pylori Gastric Epithelial
mucin cells
gel
Number
i
318
Units
um
H.pylori…
T1. Calculate what is the received frequency when the car drives away from the radar antenna at a speed v of a) 1 m/s ( = 3.6 km/h), b) 10 m/s ( = 36 km/h), c) 30 m /s ( = 108 km/h) . The radar transmission frequency f is 24.125 GHz = 24.125*10^9 Hz, about 24 GHz. Speed of light 2.998 *10^8 m/s.
No Chatgpt please will upvote
Chapter 11 Solutions
Physics for Scientists and Engineers with Modern Physics
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