lab report

I’m working on a Engineering exercise and need support.

  • TEXTBOOK : Lab13 and Lab14 in 9th, Lab 10 in 8th
  • Objectives : learn how to determine the coefficient of permeability of a given soil sample by constant-head and falling-head permeability test.
  • The rate of flow of water through a soil specimen of cross-sectional area A can be determined as

= where q = flow in unit time, k=coefficient of permeability, i = hydraulic gradient

  • The permeability coefficient, k is defined as a measure of material’s capacity to transmit water
  • k can be determined in the lab by Constant head test (for coarse grain) or by Falling head test (for coarse or fine grain soils)

You will find more information with Virtual Labs of PermeabilityTest http://smfe-iiith.vlabs.ac.in/exp6/Introduction.html?domain=Civil%20Engineering&lab=Soil%20Mechanics%20Lab

UVA TTA, Virginia’s LTAP, (2014, Jan 7). Hydraulic Conductivity [Video]. Youtube

Submit a lab report based on the video above and using experimental data given in Table 6-1 and 6-2.

Table 6-1. Constant Permeability Test

ItemTest No.
123
Average Flow, Q(cm3)489534560
Time of collection, t(s)606060
Temperature of water, T(℃)19.919.919.9
Head Difference, h(cm)74.586.594.5
Diameter of specimen, D(cm)7.1377.1377.137
Length of specimen, L(cm)101010
Area of specimen, LaTeX: A=frac{pi}{4}D^2left(cm^2right)

A

=

π

4

D

2

(

c

m

2

)

LaTeX: k=frac{QL}{Aht}::left(cm/sright)

k

=

Q

L

A

h

t

(

c

m

/

s

)

Average k (cm/s)

Table 6-2. Falling-head Permeability Test

ItemTest No.
123
Diameter of specimen, D(cm)7.1377.1377.137
Length of specimen, L(cm)101010
Area of specimen, LaTeX: A=frac{pi}{4}D^2left(cm^2right)

A

=

π

4

D

2

(

c

m

2

)

Beginning head difference, h1(cm)888576
Ending head difference, h2(cm)557145
Tiest duration, t(s)8.23.29.5
Volume of water flow through specimen, Vw(cm3)53.52451
LaTeX: k=frac{2.303V_wL}{left(h_1-h_2right)tA}logleft(frac{h_1}{h_2}right):left(cm/sright)

k

=

2.303

V

w

L

(

h

1

h

2

)

t

A

log

(

h

1

h

2

)

(

c

m

/

s

)

Average k (cm/s)

Lab Report should

  1. Write down the procedures described in the video(UVA TTA, Virginia’s LTAP,2014). Ignore the measurements shown in the video.
  2. Include completed data tables 6-1 and 6-2, and sample calculations for both tests.
  3. Assuming that the same soil sample was used in the two tests, discuss the variation of k between two test methods. Also, discuss possible source of errors if conducting the test.
  4. Follow lab report guidelines under Modules/Lab Information on Canvas.

Environmental Science

I’m trying to study for my Environmental Science course and I need some help to understand this question.

Read Laurie Edwards “In the Kingdom of the Sick” and write an analysis that covers the themes or ideas in the text in an in depth and critical manner. • Compare and contrast the accuracy of the writer statements regarding a single or group of chronic disease. • Describe a chronic disease, including etiology, clinical course, treatment, recovery & outcome, and prevention • Most prevalent populations globally affected by this disease • Identify local and global policies and laws regulating prevention, treatment and control of the diseases • Discuss the importance of global documents and laws regulating and controlling the disease, and suggest improvements in policy arena.

Answer need to be 1000 words excluding introduction parts.

Sending Humans Now Discussion

I don’t understand this Environmental Science question and need help to study.

1. State your gut feeling about whether we should send human beings to Mars in the next ten years or not. Include “GO NOW” or “WAIT” at the top of your post to indicate which team you’re on and list two or more reasons why you feel this way. (15)

2. Find an article, website, or video that expresses the opposite point of view from yours and

a) Provide the title and a link to your source. It’s okay to describe the same plan (for example, the Obama administration’s policy regarding Mars, but the source you cite must be different from other people in the class. (10)

b) Summarize it in one or more paragraphs, making sure to include the source’s main arguments. (25)

Organic Chemistry Lab Write ups. NEED HELP ASAP

Help me study for my Chemistry class. I’m stuck and don’t understand.

Hello,

I need help writing my labs. It’s not that I don’t know how, but I am having a bad mental struggles getting work done and stressing over work at the time.

These are not difficult at all, and can be passed off as rephrasing. I need Intro, procedure and conclusion written for 3 labs. 1 is almost done that I have done most myself but just needs finalizing, probably one more page. The rest are at blank, but I have all materials needed and even other labs that will help tremendously. You may even be able to simply rephrase it which I have done but need to make sure it is not too similar since they check for plagiarism. I have attached the rubric. The labs are not based on length but on having and doing the right material.

It usually is around 3-4 pages for Background info (intro), procedure and conclusion. So total may be about 10 pages you will be doing but they really are mostly rephrasing, I have all necessary stuff for them. Grammar would need to be ok and the information must make sense. I want to do this as a google doc however, since I will be doing the calculations on the same document. There may be a few questions to answer but I already have the answers, they just need to be answered with my numbers and they are just understanding questions that I have and will be mostly doing, they’ll be after the conclusion.

Please message me of any concerns and work with me. One lab is due tomorrow Friday at 12 noon Central Time and the other later that night I can submit. I just need to make sure the one is done by noon. I expect it to take approximately 1 maybe 1.5 hours with no breaks for that one and 1 maybe 2 hours for the rest. Again it is basically just rephrasing. Please if you have the knowledge and can help, let me know!

it should be about 300 words, and then I need two replies to two other students about 150 words each.

I don’t understand this Health & Medical question and need help to study.

Legalizing Marijuana

88 unread replies.88 replies.

The jabs across the fence by those that want marijuana legalized are quickly countered by those that want to keep marijuana classified as a Schedule I drug. To date 21 states have laws in place that legalize the use of marijuana for medical reasons. Currently since the recent elections, 10 states and the District of Columbia have passed measures that have legalized marijuana for recreational use. Proponents say that there have been no documented deaths as a directresult of marijuana use, where as the annual number of deaths from tobacco smoke and alcohol are numbing. Proponents state that the legalization of marijuana will result in jobs, increased revenue for states, decreased crime, and the sale of the drug can be regulated. Opponents argue that increased availability of the dr ug and its byproducts will only resort in higher usage among teens, increased costs for treatment programs, increased availability to minors, higher addiction rates, and increased health related issues further burdening the health care systema. There is also the argument of increased involvement of foreign crime organizations.. After being the first to legalize the recreational use, Colorado has been the experiment that other states continue to look to. In Colorado’s 2019 annual report referred to as the Rocky Mountain High Intensity Drug Trafficking Area (HIDTA) impact Report , which is used to monitor data regarding the impact of legalizing marijuana has highlighted some interesting issues.

The report is divided into multiple sections, each providing information on the impact of marijuana legalization. The sections are as follows:

Section 1 – Impaired Driving and Fatalities:

Since recreational marijuana was legalized, traffic deaths in which drivers tested positive
for marijuana increased 109 percent while all Colorado traffic deaths increased 31
percent.
• Since recreational marijuana was legalized, traffic deaths involving drivers who tested
positive for marijuana more than doubled from 55 in 2013 to 115 people killed in 2018.
o This equates to one person killed every 3 days in 2018 compared to one person
killed every 6 ½ days in 2013.
• Since recreational marijuana was legalized, the percentage of all Colorado traffic deaths
that were marijuana related increased from 15 percent in 2013 to 23 percent in 2018.

Section 2 – Youth Marijuana Use:

Since recreational marijuana was legalized:

  • Past month marijuana use for ages 12 and older increased 58 percent and is 78 percent
    higher than the national average, currently ranked 4th in the nation.
  • Youth marijuana use decreased 14 percent and is 40 percent higher than the national
    average, currently ranked 6th in the nation. In 2017,
  • The number of students that usually consumed marijuana as edibles was 10% which was up from 2% in 2015.
    Further, the students that reported dabbing marijuana increased from 4% in 2015 to 7.5% in
    2017.

Colorado first time use ranks first in the nation for all age groups except for 26
and older in which it ranks second.

Section 3 – Adult Marijuana Use:

  • Adult marijuana use increased 94 percent and is 96 percent higher than the national
    average, currently ranked 4th in the nation.
  • College age marijuana use increased 18 percent and is 48 percent higher than the
    national average, currently ranked 6th in the nation.
  • Past Month Marijuana Use Ages 26 and Older Colorado was 96% higher than the National average in 2016/2017
  • Between 2002 and 2016 the amount of pregnant women using marijuana increased from 3% to5%. By comparison both alcohol and cigarette use by pregnant women fell during the same time period by 2% and 7.5% respectively

Section 4 – Emergency Department and Hospital Marijuana-Related Admissions

The yearly number of emergency department visits related to marijuana increased 54
percent after the legalization of recreational marijuana (2013 compared to 2017).
• The yearly number of marijuana-related hospitalizations increased 101 percent after the
legalization of recreational marijuana (2013 compared to 2017).
• Marijuana only exposures more than quadrupled in the six-year average (2013-2018)
since recreational marijuana was legalized compared to the six-year average (2007-2012)
prior to legalization.
• The percent of suicide incidents in which toxicology results were positive for marijuana
has increased from 14 percent in 2013 to 23 percent in 2017.

Section 5 – Black Market

  • RMHIDTA Colorado Drug Task Forces (10) conducted 257 investigations of black
    market marijuana in Colorado resulting in:
    o 192 felony arrests
    o 6.08 tons of marijuana seized
    o 60,091 marijuana plants seized
    o 25 different states the marijuana was destined
  • Seizures of Colorado marijuana in the U.S. mail system has increased 1,042 percent from
    an average of 52 parcels (2009-2012) to an average of 594 parcels (2013-2017) during the
    time recreational marijuana has been legal.
  • Number of Marijuana Case Filings Associated with Colorado Organized Crime Control Act increased from 1 in 2014 to 119 in 2017. Colorado Organized Crime Control Act (COCCA) filings are conspiracy cases in
    which there is potential for a larger sentence than other types of drug filings.

Section 6 – Societal Impact

  • Marijuana tax revenue represent approximately nine tenths of one percent of
    Colorado’s FY 2018 budget.
  • Total revenue from Marijuana taxes totaled $253,284,946
  • 64 percent of local jurisdictions in Colorado have banned medical and recreational
    marijuana businesses.
  • In 2018, violent crime in Colorado rose by 7.95% compared with 2017. Over half of the violent
    crime reported in 2018 was categorized as aggravated assault. In total, there were 211 murders
    (218 in 2017), 14,403 aggravated assaults (up 12.66% from 2017), and 6,834 sexual offenses (up
    5.01% from 2017).
  • The per-capita violent crime rate in Denver grew 9 percent between 2017 and 2018, while the
    bulk of large cities in the U.S. saw a decline… On average, violent crime rates in 25 of the
    nation’s most populous cities dropped 4 percent in that time period.
  • Average Pounds of Marijuana from Colorado, mailed to another state increased 1,124% !

Section 7– Related Data:

Economic and Social Costs of Legalized Marijuana

• “For every dollar gained in tax revenue, Coloradans spent approximately $4.50 to
mitigate the effects of legalization.”
• “Costs related to the healthcare system and from high school drop-outs are the largest
cost contributors.”
• “Yearly cost-estimates for marijuana users: $2,200 for heavy users, $1,250 for moderate
users, $650 for light users.”
• “The estimated costs of DUIs for people who tested positive for marijuana only in 2016
approaches $25 million.”
• “In 2016, the marijuana industry was responsible for approximately 393,053 pounds of
CO2 emissions.”

To read the complete report click the following link RMHIDTA (Links to an external site.)

In a recent article from CNN Business (11/26/19), it was reported that total estimated sales form recreational cannabis totaled over $12 billion, but black market sales accounted for the largest share totaling $8.7 billion in illicit sales. The expected job growth has turned into an epidemic of layoffs.

Seeing this data, both the good and the bad, how does the state of California, which has a very hard time trying to find it’s own identity, use Colorado as a model and reduce the trends that are being experienced there. Please do not tell me about the importance of pot for medicine, or about less people in jail, or that no one has ever died from overdosing on pot. That is not what I am looking for here. Look at the facts people. Get into this, because your generation will live with the after affects good or bad from these issues. At the end of the day, is this just about money? I expect some real hard line data in your replies, not the latest blog from the Huffington Post or Weed Magazine.

impact final report

I don’t know how to handle this Environmental Science question and need guidance.

based on the work we have done through the course, now is the continuos report related to the subject, the report format is:

  • Introduction (10%):
  • Major EIA contents(15%):
  • Comments (60%): “your comment on EIS documents”
  • Q&A (15%), “answer the question is been asked in the evaluation file in excel. ignore the comment, answer just the questions”
  • Font size: 12
  • Line spacing: 2.0
  • Figure or Tables (less than 7) and put them as appendix.

the report have to be about 7 to 10 pages.

reference:

https://cdxnodengn.epa.gov/cdx-enepa-II/public/action/eis/details?eisId=239097

https://www.permits.performance.gov/projects/atlanta-chattanooga-high-speed-ground-transportation

https://cms8.fra.dot.gov/environment/completed-environmental-reviews/atlanta-chattanooga-high-speed-ground-transportation


Presention

I’m stuck on a Ecology question and need an explanation.

Introduction/Background

Ecological Impact/ Example #1

Example of impact – can be pulled from research paper (with at least two supporting citations)

Ecological Impact/ Example #2

Example of impact – can be pulled from research paper (with at least two supporting citations)

Ecological Impact/ Example #3

Example of impact – can be pulled from research paper (with at least two supporting citations)

Should have one Ecological Impact/ Example per group member

Conclusion: Solutions/Future Directions of Research

I have my research paper which you take the info from to do the presentation. Just follow the outline and take the info from the research that I attached

MOS 6301, Advanced Industrial Hygiene

Can you help me understand this Environmental Science question?

Instructions

Textbook: Fuller, T. P. (2015). Essentials of industrial hygiene. Itasca, IL: National Safety Council.

After reviewing Safety Data Sheets (SDS) and conducting an initial inspection of the areas at Acme

Automotive Parts (AAP), you identify the following health hazards that you want to further evaluate:

§manganese fume (hand welding);

§copper fume (hand welding);

§lead fume (hand welding);

§1,2,4 trimethylbenzene (paint booth);

§toluene (paint booth); and

§xylene (paint booth).

Choose one of the compounds from the hand-welding operation and one of the compounds from the paint booth operation. Search the Internet, and find the following data concerning the two compounds you chose; LC50, IDLH, vapor pressure, vapor density, target organs, mutagenicity, carcinogenicity, and reproductive toxicity.

(Hint: many of the variables can be found on SDS that can be accessed on the Internet).

Write one paragraph on each of the compounds explaining what the data tell you about the most likely exposure route and risk associated with each compound.

Your assignment must be a minimum of two pages in length, not including title or reference pages. Your assignment must use at least two references.

One must be gathered from the CSU Online Library; the other may be your textbook. All references and in-text citations must be formatted according to APA standards.

MOS 6301, Advanced Industrial Hygiene

Can you help me understand this Environmental Science question?

Instructions

Textbook: Fuller, T. P. (2015). Essentials of industrial hygiene. Itasca, IL: National Safety Council.

After reviewing Safety Data Sheets (SDS) and conducting an initial inspection of the areas at Acme

Automotive Parts (AAP), you identify the following health hazards that you want to further evaluate:

§manganese fume (hand welding);

§copper fume (hand welding);

§lead fume (hand welding);

§1,2,4 trimethylbenzene (paint booth);

§toluene (paint booth); and

§xylene (paint booth).

Choose one of the compounds from the hand-welding operation and one of the compounds from the paint booth operation. Search the Internet, and find the following data concerning the two compounds you chose; LC50, IDLH, vapor pressure, vapor density, target organs, mutagenicity, carcinogenicity, and reproductive toxicity.

(Hint: many of the variables can be found on SDS that can be accessed on the Internet).

Write one paragraph on each of the compounds explaining what the data tell you about the most likely exposure route and risk associated with each compound.

Your assignment must be a minimum of two pages in length, not including title or reference pages. Your assignment must use at least two references.

One must be gathered from the CSU Online Library; the other may be your textbook. All references and in-text citations must be formatted according to APA standards.

find a solution for the research provided

I don’t know how to handle this Engineering question and need guidance.

you will find attached below a research about parking in the university of south Florida. please read through it. after you are done in the last part you will find proposed solutions, we are supposed to provide three solutions for this research with credible sources. also the solutions are preferred to be feasible so the university would actually implement it, this part below, I have copied it from the paper itself. it just helps to give a better understanding on what the solution is evaluated upon. Moreover, This paper that is attached is just a draft so please do not get confused with all the random organization. now please, I have two solutions in this draft. But, also I need two more solutions because i am not liking on of the solutions my friend provided. Thank you

ps, for the layout please follow how the paper is already laid out and do not forget to put the references. Also I need you to write everything you add in red so i can now where did you add it.

Solution Criteria

Each solution will be judged based on the following criteria: How much it benefits USF’s Parking and Transportation System as a whole, how much it helps the students at USF, and whether it’s cost effective or beneficial overall for USF to enact such a solution. Whether a solution is feasible or not will depend on how well it matches all the criteria listed.