Homework Help

Hello, as applied mathematics student i get assigned to make presentation about integral integration in everyday life(I need example and solution). So if you share your ideas and knowlige I will be very grateful

1. If you were to rank volcanic landforms in terms of the risk they pose to humans, which would be the most risky landform to encounter, and which would be relatively safe? Explain your answer. This is the question in my assignment, I was able to determine the the most dangerous, which are the stratovolcanoes though research, but when I was determining which is the safe one I've encountered a lot of problems. Here are the choices base on my textbook - shield volcanoes, cinder cones, calderas, fissures, basalt plateaus, lava domes, and volcanic necks. Based on what I've searched on the internet, all of the the volcanoes mentioned are dangerous, the ca…

I managed to identify A B and D what got me confused is the texture of C I kinda think it's Phaneritic based on how similar it looks to B in terms of the texture, but I've searched things related to the picture on the internet and seen people saying it's Porphyritic. So what do you think guys? Plus knowing what kind of rock it is will also help, though I do think it's a granite, correct me if I'm wrong thank you.

Hello. My question is as follows :Calculate the pI of Leucine pKa (carboxyl) = 2.4; pKa (amino) = 9.6; What is the ratio of COO- : COOH at pH 3.4? For pI I get 6 (9.6 + 2.4/2 = 6). I am having great difficulty with the 2nd part of the question. I get 63.8% COO-: 36.2% COOH. I deduced this since 50% is dissociated at pH2.4 and 100% is dissociated at pH6. There are 3.6 units from 2.4 to 6. Since it is one above 2.4, I divided 1/3.4 and multiplied it by 50 to get 13.8%. This added to the 50% dissociated at 2.4pH equals 63.8% dissociated and 36.2% not dissociated. Any help on how to reason this out to get the right answer would be greatly appreciated!!!!

Hello all, I have had help on this forum before and it was very informative but I have been presented with a calculation I am not entirely sure how to work out so am looking for some help again please. The question is shown below along with the answer I believed to have been correct. I understand the equation is V=M/P however I believe the bit that threw me off was the fact that the density has 2 powers, one in the sum 1.24x103 and one again in the unit m-3 I would be very grateful if somebody could break down how to work this out so I could give it another go. I just realised some people may not be able to zoom in to see the image I uploaded … s…

Help me please. I had COVID when the teacher discussed this and he won't respond to my emails. Thanks! Draw the resonance structures of the following compound. Use curved arrows to show movement of electrons. Do not forget to include the given structure as one of the resonance structures. Identify whether each structure is either a major or minor contributor. Thank you!

Ultrasound probes can resolve structural details with sizes approximately equal to the wavelength of the ultrasound waves themselves. What is the size of the smallest feature observable in human tissue when examined with 11-MHz ultrasound? The speed of sound in human tissue is 1,540 m/s. Thanks!

I just received a project from my Advanced Secure Programming module and I need help on just starting really. Here is the description: The project requires the implementation of a secure application (of student’s choice) in any programming language. The application should cover at least 4 out of the seven pernicious kingdoms. (https://cwe.mitre.org/documents/sources/SevenPerniciousKingdoms.pdf): • Input validation and representation (mandatory) • API abuse • Security features • Time and state • Errors (mandatory) • Code quality • Encapsulation I just need an idea on…

Can Someone please help me complete this assignmnet to create a hangman game in QT creator? I have 2 weeks to get it done and it is ton load of work.

The data in the table below has been collected by a teacher at the end of two unit assessments. Produce a subroutine for an algorithm that could be used to count the number of students who achieved a grade 8 in both assessments, the data is stored in parallel arrays and array indexing begins at 0 Ryan. 5. 5 Liam. 8. 8 Sophie. 5. 7 Micheal 3. 4 Robert 8. 8 Rebecca. 5. 3

Can we use the 1st law of Mendel in case of a single gene linked to a sexual chromosome? I have an exam tomorrow i need an answer!!

The problem I'm stuck is 15. I added Example 4 so you can see what problem 15 is all about. What I've been trying is: the amount of pollutant in the first lake is y=(1-e^(-2.67*10^(-7)t)(2.51*10^6). So I multiplied y by the rate entering the second lake which is the one leaving the first lake. Then I multiply 10.67 by the amount of pollutant in the second lake which is what I have to find through a linear first-order differential equation. Then I have dc/dt=10.67y+10.67c. Something's wrong but I don't know what. I do not need help solving this kind of differential equations where I need help is FINDING THE DIFFERENTIAL EQUATION TO SOLVE.

Hi all, Why does the type of inheritance related to the character influence the efficiency of the selection? NB: Intrapopulational improvement of Allogams (Plant)

Hi everyone I have a chemistry homework but I couldn't solve these questions.Can you help me? 1)As a result of the reaction of 2.08 grams BaCl2 and 3.48 grams K2SO4, 2.2 grams of BaSO4 was obtained. Write the equation for this reaction and calculate the percentage yield. (BaCl2:208.23g/mol ,K2SO4:174.26 g/mol,BaSO4:233.39 g/mol) 2)Calculate the amount of precipitate (AgI) formed when 3 milliliters of 0.1 M AgNO3 reacts with 12 milliliters of 0.1 M Kl and the concentration of ions remaining in the solution. (AgI:234.77 g/mol) Thanks a lot!

What are the tarry side products of Perkin reaction? Could this simply be the products of aldol condensation of acetic anhydride?

How you will prepare the following solutions: Solution 1 (500 mL; pH 8.5) 1% Tryptone + 0.5% yeast extract + 200 mMNaCl Solution 2 (500 mL; pH 8.8) 50 mM glucose + 10 mM EDTA + 25 mMTris (pH 8.0)

I am having difficulty with the following problem: If you dissolve 360mg glucose (Formula Weight: 180.16g/mole) in 5mL of water: 1.What is the concentration of glucose in mM and µM? I got 360 mg x 1mole/180.16 g = .002 moles .002 moles x .005L = 1 x 10^-5 M x 1 x10^3 mM/1M = 1 x 10^-3 mM glucose 1 x 10^-3 mM x 1x 10^-3micromolar/1mM = 1 x 10^-5 micromolar glucose 2.If you take 5mL of this solution and dilute it to 500mL what is the concentration of the glucose in the resulting solution in µM? I used c1v1=c2v2 (1 x 10^-5 micromolar)(5mL) = (C2)(500 mL) = 1 x 10 ^-7 microMolar 3.How many nanom…

How is a low pressure area formed in the sea ?

I am currently doing PhD research on gold leaching, part of which utilizes cyclic voltammetry. I have voltammograms with gold, silver and platinum RDE electrodes of NaCl, NaOCl, NH4Cl, CuCl2 (With N2, O2 injection and without gas injection) at pH 2, 4, 6, 8, 10, 12 and FeCl3 (With N2, O2 injection and without gas injection) at pH 2. I have determined the positions (current and potential versus Ag/AgCl) of all the peaks and I know how to determine E1/2, ne-, etc. The only thing I am not sure about is how to determine which peaks (reduction and oxidation peaks) pair to each other and how to assign peak pairs to specific redox couples. There are some I can identify through …

I have a list of genes selected for a disease through microarray databases. The questions are as follows: 1. What is the implication of finding a biological pathway for these genes for a disease? 2. What is the implication of finding groups of genes that are associated with specific cellular functions (for example apoptosis, migration, ...), in a disease

A 63-years-old leukaemia patient presented with a 6-day history of tiredness, decreased oral intake, nausea, vomiting, and jaundice (dark urine and yellowish sclera). Is there any biochemical test should be conducted except liver function test, complete blood count and G6PD test? I think the patient is having hepatitis or autoimmune hemolytic anaemia due to chemotherapy.

The unique gene A is highly expressed in leaf tissue and the genA mRNAs make up 3% of the total mRNA. The unique gene B is less expressed and the gene B mRNA is only 0.3% of the total amount of mRNA. A leaf cDNA library and a genomic library represent the entire genome. 1000 clones from each library are hybridized with a probe from a small piece of the ORF of A or B (corresponds to a partial exon). How many clones in each library will hybridize to probe A and probe B Genomic library, probe A : Genomic library, probe B : cDNA library, probe A : cDNA library, probe B:

Can someone please explain the lewis structure of nitrate in the attachment below ? I am really confused. Thank you.