College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Topic Video
Question
I included the previous parts for context, but I just need help on "Part D" please!
![**Learning Goal:**
To apply the law of conservation of energy to an object launched upward in Earth's gravitational field.
In the absence of nonconservative forces such as friction and air resistance, the total mechanical energy in a closed system is conserved. This is one particular case of the law of conservation of energy.
In this problem, you will apply the law of conservation of energy to different objects launched from Earth. The energy transformations that take place involve the object's kinetic energy \( K = (1/2)mv^2 \) and its gravitational potential energy \( U = mgh \). The law of conservation of energy for such cases implies that the sum of the object's kinetic energy and potential energy does not change with time. This idea can be expressed by the equation:
\[ K_i + U_i = K_f + U_f \]
where "i" denotes the "initial" moment and "f" denotes the "final" moment. Since any two moments will work, the choice of the moments to consider is, technically, up to you. That choice, though, is usually suggested by the question posed in the problem.
---
**First**, let us consider an object launched vertically upward with an initial speed \( v \). Neglect air resistance.
**Part A**
As the projectile goes upward, what energy changes take place?
- [ ] Both kinetic and potential energy decrease.
- [ ] Both kinetic and potential energy increase.
- [x] Kinetic energy decreases; potential energy increases.
- [ ] Kinetic energy increases; potential energy decreases.
**Correct.**](https://content.bartleby.com/qna-images/question/03d19364-d2f4-4703-a72b-e46c5aa833e9/5e85367b-e01c-42b4-a187-ceac2adedcc7/9sbiciw_processed.png)
Transcribed Image Text:**Learning Goal:**
To apply the law of conservation of energy to an object launched upward in Earth's gravitational field.
In the absence of nonconservative forces such as friction and air resistance, the total mechanical energy in a closed system is conserved. This is one particular case of the law of conservation of energy.
In this problem, you will apply the law of conservation of energy to different objects launched from Earth. The energy transformations that take place involve the object's kinetic energy \( K = (1/2)mv^2 \) and its gravitational potential energy \( U = mgh \). The law of conservation of energy for such cases implies that the sum of the object's kinetic energy and potential energy does not change with time. This idea can be expressed by the equation:
\[ K_i + U_i = K_f + U_f \]
where "i" denotes the "initial" moment and "f" denotes the "final" moment. Since any two moments will work, the choice of the moments to consider is, technically, up to you. That choice, though, is usually suggested by the question posed in the problem.
---
**First**, let us consider an object launched vertically upward with an initial speed \( v \). Neglect air resistance.
**Part A**
As the projectile goes upward, what energy changes take place?
- [ ] Both kinetic and potential energy decrease.
- [ ] Both kinetic and potential energy increase.
- [x] Kinetic energy decreases; potential energy increases.
- [ ] Kinetic energy increases; potential energy decreases.
**Correct.**
![## Part D
Using conservation of energy, find the maximum height \( h_{\text{max}} \) to which the object will rise.
Express your answer in terms of \( v \) and \( g \). You may or may not use all of these quantities.
### Input Box
- \( h_{\text{max}} = \) [Input Field]
### Controls
- **Square root button**: Inserts the square root symbol.
- **Greek letters button**: Provides access to Greek symbols.
- **Undo button**: Reverts the last action.
- **Redo button**: Reapplies the last undone action.
- **Reset button**: Clears the current input.
- **Keyboard button**: Displays an on-screen keyboard.
- **Help button**: Provides guidance on using the input box.
### Submission
- **Submit Button**: Finalize your answer.
- **Request Answer Link**: Seek assistance if needed.](https://content.bartleby.com/qna-images/question/03d19364-d2f4-4703-a72b-e46c5aa833e9/5e85367b-e01c-42b4-a187-ceac2adedcc7/7bm2hel_processed.png)
Transcribed Image Text:## Part D
Using conservation of energy, find the maximum height \( h_{\text{max}} \) to which the object will rise.
Express your answer in terms of \( v \) and \( g \). You may or may not use all of these quantities.
### Input Box
- \( h_{\text{max}} = \) [Input Field]
### Controls
- **Square root button**: Inserts the square root symbol.
- **Greek letters button**: Provides access to Greek symbols.
- **Undo button**: Reverts the last action.
- **Redo button**: Reapplies the last undone action.
- **Reset button**: Clears the current input.
- **Keyboard button**: Displays an on-screen keyboard.
- **Help button**: Provides guidance on using the input box.
### Submission
- **Submit Button**: Finalize your answer.
- **Request Answer Link**: Seek assistance if needed.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- I want to understand what I did wrong for part B?arrow_forwardpols Add-ons Help Last edit was seconds ago Arial 11 I U A + ジニ = 1 2 3 4 5 Question 1 A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker's head comes to a stop from an initial velocity of 0.600 m/s in a distance of only 2.00 mm. a) Extract and codify all the relevant information from the text. Make sure not to miss information stated implicitly! b) One of the units has a prefix. Using scientific notation, convert it into Sl unit without prefix. c) To find the acceleration, what is the most suitable kinematics equation from the information provided? d) Use the formula from part c) p calculate the acceleration. e) Calculate the stopping time. f) The tendons cradling the brain stretch, making its stopping distance 4.50 mm (great head and, hence, less deceleration of the brain). What is the brain's deceleration? DDarrow_forwardPlease do not overcomplicate the answer and explain every single step you do so I can understand itarrow_forward
- Part Aarrow_forwardHi, My name is Andre and I need some help I am completly lost so if you could could you give a detailed explination. Question: A ball is attached to the end of a string. It is swung in a vertical circle of radius 0.33 m. What is the minimum velocity that the ball must have to make it around the circle?arrow_forwardhi I need help with PART A, PART B, and PART C can you label which one is which.arrow_forward
- can you help me with Part D, thank you so mucharrow_forwardpart D only needing help with, thanks !arrow_forwardFor part b, I do not really understand what the question is asking. During the 200 m trip upwards, to we have to consider that the elevator accelerates for 5 seconds, then decelarates for 5 secs and then moves with constant velocity? I do get the final answer that is 45 secs, but Ido not conceptually understand how I am supposed to understand that there is a period of decelaration during the upward motion. Could you please solve only part b and help me understand why both periods of acceleration and deceleration both need to be taken into consideration?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press 
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
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