A student evaluates a weight loss program by calculating the number of times he would need to dlimb a 16.0 m high flight of steps in order to lose one pound (0.45 kg) of fat. Metabolizing 1.00 kg of fat can release 3.77 x 10 ) of chemical energy and the body can convert about 21.8% of this into mechanical energy (the rest goes into internal energy.) HINT (a) How much mechanical energy (in J) can the body produce from 0.450 kg of fat? (b) How many trips up the flight of steps are required for the 66.0 kg student to lose 0.450 kg of fat? Ignore the relatively small amount of energy required to return down the stairs. trips Need Help? Read It Watch it
A student evaluates a weight loss program by calculating the number of times he would need to dlimb a 16.0 m high flight of steps in order to lose one pound (0.45 kg) of fat. Metabolizing 1.00 kg of fat can release 3.77 x 10 ) of chemical energy and the body can convert about 21.8% of this into mechanical energy (the rest goes into internal energy.) HINT (a) How much mechanical energy (in J) can the body produce from 0.450 kg of fat? (b) How many trips up the flight of steps are required for the 66.0 kg student to lose 0.450 kg of fat? Ignore the relatively small amount of energy required to return down the stairs. trips Need Help? Read It Watch it
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
Related questions
Question
![### Energy Expenditure and Weight Loss
A student evaluates a weight loss program by calculating the number of times he would need to climb a 16.0 m high flight of steps in order to lose one pound (0.45 kg) of fat. Metabolizing 1.00 kg of fat can release \(3.77 \times 10^7 \, \text{J}\) of chemical energy and the body can convert about 21.8% of this into mechanical energy (the rest goes into internal energy).
#### Questions
(a) **How much mechanical energy (in J) can the body produce from 0.450 kg of fat?**
\[ \text{_______ J} \]
(b) **How many trips up the flight of steps are required for the 66.0 kg student to lose 0.450 kg of fat?** Ignore the relatively small amount of energy required to return down the stairs.
\[ \text{_______ trips} \]
#### Additional Resources
- Need Help? [Read it] [Watch it]
Submit your answer to refine your calculations and understanding.
---
This exercise involves understanding energy conversion and practical applications of physics in real-life scenarios such as weight management through physical activity.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd9f8dd60-2822-4162-bc66-228f0a545829%2F7702f66d-9bcd-49d6-a586-32ff395b1edc%2F9kv1yff_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Energy Expenditure and Weight Loss
A student evaluates a weight loss program by calculating the number of times he would need to climb a 16.0 m high flight of steps in order to lose one pound (0.45 kg) of fat. Metabolizing 1.00 kg of fat can release \(3.77 \times 10^7 \, \text{J}\) of chemical energy and the body can convert about 21.8% of this into mechanical energy (the rest goes into internal energy).
#### Questions
(a) **How much mechanical energy (in J) can the body produce from 0.450 kg of fat?**
\[ \text{_______ J} \]
(b) **How many trips up the flight of steps are required for the 66.0 kg student to lose 0.450 kg of fat?** Ignore the relatively small amount of energy required to return down the stairs.
\[ \text{_______ trips} \]
#### Additional Resources
- Need Help? [Read it] [Watch it]
Submit your answer to refine your calculations and understanding.
---
This exercise involves understanding energy conversion and practical applications of physics in real-life scenarios such as weight management through physical activity.
Expert Solution
Step 1
Given:
Total height , h=16.0 m
Weight fat lose , m=0.45 kg
1 kg of fat can produce chemical 3.77×107 J.
Conversion rate of chemical energy into mechanical energy is 21.8%.
To determine:
(a) Mechanical energy (in J) that can the body produce from 0.450 kg of fat.
(b) Numbers trips up the flight of steps are required for the 66.0 kg student to lose 0.450 kg of fat
Step by step
Solved in 3 steps
Recommended textbooks for you
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON