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Describe in an essay the three major urban ecology models and the critiques of these models. To get full credit, you must list AND describe them.
OR
Identify and describe three theories of city life. To get full credit, you must both identify AND describe.
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Lab Assignment 5: EnergyInstructor’s OverviewEnergy is a key concept in physics. In this lab we will explore the conce ...
Lab Five Energy
Lab Assignment 5: EnergyInstructor’s OverviewEnergy is a key concept in physics. In this lab we will explore the concepts of potential and kinetic energy and energy conversion. In the first part of the lab, we will use a rubber “popper” to directly experiment with energy. We’ll next study a hypothetical roller coaster and investigate it’s conversions of potential and kinetic energy. This activity is based on Lab 11 of the eScience Lab kit.Our lab consists of two main components. These components are described in detail in the eScience manual. Here is a quick overview:
• In the first part of the lab, you will work with a rubber popper to explore concepts such as potential energy, kinetic energy, and energy conservation.
• In the second part of the lab, you will be presented with a diagram of a rollercoaster. Based on your knowledge of potential and kinetic energy and energy conservation, you will answer a series of questions on the design. This activity dovetails well with the Instructor’s Commentary on roller coasters.
Take detailed notes as you perform the experiment and fill out the sections below. This document serves as your lab report. Please include detailed descriptions of your experimental methods and observations. Record all of your data in the table that is provided in this document.Procedure 1 – Popper Experiment:
• Place the popper on a smooth flat surface like a linoleum floor. I recommend placing the popper on the floor since it travels a good height. When I initially ran the experiment on my kitchen table, the popper hit the ceiling.
• I recommend recruiting a lab assistant when you run the popper experiment. When you turn the popper inside out and place it on the ground, it takes off in short order. I recommend having one person holding the popper on the floor and that person also timing the flight. The other person should be standing and ready to place their hand at the peak of the flight.
Student: AbstractMaterial and Methods
ResultsData tables for the popper experiment:Maximum height test
Trial
Height (meters)
1
2
3
4
5
6
7
8
9
10
Average
Standard Deviation
Flight time testTrialTotal flight time (seconds)12345678910AverageStandard DeviationAnalysis and DiscussionBased on your results from the popper energy experiment, please answer the following questions:
1. What is the gravitational potential energy of the popper at its average measured maximum height?
Use g = 9.8 m/s2, and a mass of 0.01 kg.Potential energy = PE = mgh =
2. Use the following kinematic equation to calculate the initial velocity of the popper based on how long it is in the air:
v0 = : t is total time of flight (up and down). n
3. Use the calculated value for the initial velocity to find the kinetic energy of the popper right as it “pops” up.
KE = ½ mvo2
4. Compare your answers for potential energy and kinetic energy. Are they the same, or close to the same?
5. Is the energy stored in the popper rubber before it “pops” more or less than the energy the popper has at its total height? Why?
Roller coaster exerciseConsider the following roller coaster layout taken from the eScience manual:Based on your understanding of energy concepts, please answer the following questions. Make sure to include detailed physical arguments.
• What happens to the roller coasters kinetic energy between points B and C? What happens to its potential energy between these points?
• Why is it important for A to be higher than C (assume friction is negligible)?
• 125
• If the roller coaster starts at point A, can it ever go higher than this point? What causes the roller coaster train to lose energy over its trip?
• List the points in order of greatest potential energy to least.
ConclusionsReferences
5 pages
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Most Popular Content
PHYS 196 San Diego Community College Direct Current & Circuits Lab Report
please help me complete this lab, all directions are provided in the beginning. this is a virtual lab, so all you have to ...
PHYS 196 San Diego Community College Direct Current & Circuits Lab Report
please help me complete this lab, all directions are provided in the beginning. this is a virtual lab, so all you have to do is follow the link provided in the pdf file to get the necessary documents. with this lab, any graphs needs to have a title, best fit line, major and minor grid lines. also any calculation have to show work and show appropriate unites. all parts needed to complete are highlighted.
7 pages
Projectile Motion Lab Report
To gain an understanding on the aspects of projectile motion e.g. horizontal height, This lab studies the case of 2D proje ...
Projectile Motion Lab Report
To gain an understanding on the aspects of projectile motion e.g. horizontal height, This lab studies the case of 2D projectile motion. In such a ...
1 page
Mitosis Meiosis Worksheet
Directions: Place each word or phrase in the list on the left into either the circle for Mitosis or Meiosis or if appropri ...
Mitosis Meiosis Worksheet
Directions: Place each word or phrase in the list on the left into either the circle for Mitosis or Meiosis or if appropriate in
Lab Five Energy
Lab Assignment 5: EnergyInstructor’s OverviewEnergy is a key concept in physics. In this lab we will explore the conce ...
Lab Five Energy
Lab Assignment 5: EnergyInstructor’s OverviewEnergy is a key concept in physics. In this lab we will explore the concepts of potential and kinetic energy and energy conversion. In the first part of the lab, we will use a rubber “popper” to directly experiment with energy. We’ll next study a hypothetical roller coaster and investigate it’s conversions of potential and kinetic energy. This activity is based on Lab 11 of the eScience Lab kit.Our lab consists of two main components. These components are described in detail in the eScience manual. Here is a quick overview:
• In the first part of the lab, you will work with a rubber popper to explore concepts such as potential energy, kinetic energy, and energy conservation.
• In the second part of the lab, you will be presented with a diagram of a rollercoaster. Based on your knowledge of potential and kinetic energy and energy conservation, you will answer a series of questions on the design. This activity dovetails well with the Instructor’s Commentary on roller coasters.
Take detailed notes as you perform the experiment and fill out the sections below. This document serves as your lab report. Please include detailed descriptions of your experimental methods and observations. Record all of your data in the table that is provided in this document.Procedure 1 – Popper Experiment:
• Place the popper on a smooth flat surface like a linoleum floor. I recommend placing the popper on the floor since it travels a good height. When I initially ran the experiment on my kitchen table, the popper hit the ceiling.
• I recommend recruiting a lab assistant when you run the popper experiment. When you turn the popper inside out and place it on the ground, it takes off in short order. I recommend having one person holding the popper on the floor and that person also timing the flight. The other person should be standing and ready to place their hand at the peak of the flight.
Student: AbstractMaterial and Methods
ResultsData tables for the popper experiment:Maximum height test
Trial
Height (meters)
1
2
3
4
5
6
7
8
9
10
Average
Standard Deviation
Flight time testTrialTotal flight time (seconds)12345678910AverageStandard DeviationAnalysis and DiscussionBased on your results from the popper energy experiment, please answer the following questions:
1. What is the gravitational potential energy of the popper at its average measured maximum height?
Use g = 9.8 m/s2, and a mass of 0.01 kg.Potential energy = PE = mgh =
2. Use the following kinematic equation to calculate the initial velocity of the popper based on how long it is in the air:
v0 = : t is total time of flight (up and down). n
3. Use the calculated value for the initial velocity to find the kinetic energy of the popper right as it “pops” up.
KE = ½ mvo2
4. Compare your answers for potential energy and kinetic energy. Are they the same, or close to the same?
5. Is the energy stored in the popper rubber before it “pops” more or less than the energy the popper has at its total height? Why?
Roller coaster exerciseConsider the following roller coaster layout taken from the eScience manual:Based on your understanding of energy concepts, please answer the following questions. Make sure to include detailed physical arguments.
• What happens to the roller coasters kinetic energy between points B and C? What happens to its potential energy between these points?
• Why is it important for A to be higher than C (assume friction is negligible)?
• 125
• If the roller coaster starts at point A, can it ever go higher than this point? What causes the roller coaster train to lose energy over its trip?
• List the points in order of greatest potential energy to least.
ConclusionsReferences
5 pages
Exercise 4
Activity 1: Draw and describe your 4 macroscopic pond water organisms here These are small, brown to black, freeswimming o ...
Exercise 4
Activity 1: Draw and describe your 4 macroscopic pond water organisms here These are small, brown to black, freeswimming organisms that are the larval ...
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