College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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ms of appeal in
Pirate Port I Public
0f
Whiworth Fibrary
A Z Databases
Course Homne X Join comershon
Book a Flight: Best
https://openvellum.ecollege.com/course.html?courseld-155442638HeplD=c5fa803dae2fe486ce2b2d26e3f885b8#10001
PS151-2, Physics with Dr. Z. 2019
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ysics
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KHW 18
Dr. Z recommends problem 5
5 of 6
When you ride a bicycle at constant speed, nearly all the energy
you expend goes into the work you do against the drag force of
the air. Model a cyclist as having croSs-section area 0.48 m and,
because the human body is not aerodynamically shaped, a drag
coefficient of 0.90
Review
What is the cycists power output while riding at a steady 7.3 m/s (18 mph)?
Express your answer to two significant figures and include the appropriate units
LA
Value
P=
Units
Submit
Request Answer
Part B
Metabolic power is the rate at which your body "burms" fuel to power your activities. For many activities, your body is roughly 25
chemical energy of food into mechanical energy. What is the cyclist's metabolic power while cycling at 7.3 m/s?
efficient at converting the
Express your answer to two significant figures and include the appropriate units.
O
1?
ralue
Cnits
Submit
Request Answer
Part C
17:42
rch
30/10/2019
8
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Transcribed Image Text:ms of appeal in Pirate Port I Public 0f Whiworth Fibrary A Z Databases Course Homne X Join comershon Book a Flight: Best https://openvellum.ecollege.com/course.html?courseld-155442638HeplD=c5fa803dae2fe486ce2b2d26e3f885b8#10001 PS151-2, Physics with Dr. Z. 2019 Hi, Nicole Sign Out Help ysics Course Home KHW 18 Dr. Z recommends problem 5 5 of 6 When you ride a bicycle at constant speed, nearly all the energy you expend goes into the work you do against the drag force of the air. Model a cyclist as having croSs-section area 0.48 m and, because the human body is not aerodynamically shaped, a drag coefficient of 0.90 Review What is the cycists power output while riding at a steady 7.3 m/s (18 mph)? Express your answer to two significant figures and include the appropriate units LA Value P= Units Submit Request Answer Part B Metabolic power is the rate at which your body "burms" fuel to power your activities. For many activities, your body is roughly 25 chemical energy of food into mechanical energy. What is the cyclist's metabolic power while cycling at 7.3 m/s? efficient at converting the Express your answer to two significant figures and include the appropriate units. O 1? ralue Cnits Submit Request Answer Part C 17:42 rch 30/10/2019 8
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