Homework Help

Regarding the electrical permittivity of the metal in a high frequency regime, I cannot find research material related to the lead dielectric function (PD). I can't get the matatrial as values, I'll let you comment on that. I know that Pd can inhibit the amount of gamma rays in the x-ray case, but I would like to know about values related to that.

This dfa accepts abba as well. I know this is correct as this is from reputed source, but I can't wrap my head around how is this correct. Please guide me.

Hi everyone! I need to answer this questions so If anyone have some ideas or can recommend useful papers would be so glad! A mutation causes abnormalities in roots. When the gene mutated was identified, it turned out that it is not expressed in roots. Can you explain what might be going on, and how you yould experimentally verify your hypothesis ? 3. How would you test if a protein is modified by reversible protein phosphorylation, which methods could you apply to test this and what could you do before you do any experiment in the lab?

Any help on how to calculate the bending moments on a with a udl and fixed point load . Taking moments every 1m , every time I work through it I get to pos C and get a negative number . No idea why . Thanks for any help

Hi I'm having difficulties with the plasmonica exercise, I sell some books and scientific publications I came across that there are two or more ways to get the result but I don't know what the correct sequence is. Values: τ, γ and mainly ωp^(2). ωp^(2)= in most of the literature = Design and Application of Plasmonic Devices - A Thesis and PLASMONICS: FUNDAMENTALS AND APPLICATIONS - STEFAN A. MAIER And research I found that gets confusing: https://www.osapublishing.org/ao/fulltext.cfm?uri=ao-22-7-1099&id=26571 Hi I'm having difficulties with the plasmonica exercise, I sell some books and scientific publications I came across that there are …

How to answer all these questions? Are these above answers correct? Answers to remaining questions will be provided very soon.

What is the answer to the above question? Any chemistry help will be accepted. I am working on this question.

What is the current problem of how cancer & cancer stem cell avoid cytotoxicity by terminal glycation products

I am interested to see if anyone knows the easiest way to mono-esterify a mono-phosphate salt group to a carboxylic acid. How to facilitate the resultant -> product ? CH3COOH + NaH2PO4 ‐> C2H4NaO5P + H2O

How to answer this question? Any math help, hint or even a correct answer will be accepted.

Under certain conditions, the well-known fertilizer ammonium nitrate (NH4NO3) explodes according to the following balanced equation: 2NH4NO3(s) → 2N2(g) + 4H2O(g)+ O2(g) Exactly 577 g of ammonium nitrate is placed in a 33.59 L constant-volume container containing dry air at 489.9 kPa and 29 ºC. The container is heated to 456 ºC and an explosive reaction occurs. It may be assumed that the reaction goes to completion. Luckily, the container remains intact after the explosion. Determine the mole fraction of nitrogen (N2) in the gas phase after the explosion. Round your final answer to two significant figures. Data: Assume that the composition of…

I was given distilled water, starch solution, sodium thiosulphate, potassium iodide solution and potassium persulfate solution to perform the clock reaction as attached. I want the mixed solution turning into blue black solution after 14 seconds. Therefore, exactly how much concentration of sodium thiosulphate to complete the reaction in 14 seconds???? I don't know where to start and what formula to use.

Can anyone provide a scientific journal that contains a microscopic image of a chayote (Sechium Edule) and its phloem sections?

a) What volume of 0.2 M K2Cr2O7 is required to oxidize 50 ml of 0.3 M Na2C2O4 in acidic medium? b)How many moles of KMnO4 will be required to react completely with 1 mole of K2C2O4 in acidic medium? c) What volume of 0.1 M KMnO4 is required to oxidize 100 ml of 0.3M FeC2O4 (Ferrous Oxalate) in acidic medium? d) How many moles of FeC2O4 is required to reduce 2 mol of KMnO4 in acidic medium? e)How many moles of K2Cr2O7 are required to react completely with 2.5 moles of Cu2S in acidic medium? My attempt to answer all these questions: a) 75 mL of 0.2M K2Cr2O7 is required to oxidize 50 mL of 03M Na2C2O4 in acidic medium. b) 0.4 mole of KMnO4 is …

A block of mass M starting from rest slides down a frictionless inclined plane of length L. When the block has attained 1/2 its final speed, the distance it has traveled along the plane is choices: L/4, L/2, L/sqrt(2), 3L/4 I tried using the equation V2=v02+2ax and set v0 = 1/2v which becomes 1/4 v2 to get 3/4 v2 = 2ax and then 3a/8 v2 = x But I don't think I'm doing it right. What should I be doing?

Hi Just posting this here to ask if I am on the right track when explainign an experiment result. I am setting up a STEM group, as part of this I have a book aimed at 7-11 year olds that has lots of simple but still very effective experiment in. One is Adding Vinegar to Bicarbonate of soda in a sealed zip lock back, so when the two react the bag fills with CO_2 and then I guess splits open due to the pressure. A second related experiment is creating a cold pack, similar method, only you put some holes in to reduce the pressure build up, this causes the reactants to cool. looking at this explanation of endo vs exo thermic reactions. htt…

My answer to the following example is 0.02 N But the answer given is 0.2N. Where I am wrong? Is the given answer correct? My

Hi! I know that might too easy for that group but, anyway I would like to ask: I have a task: What is a volume of antibody you need to take, your ration should be 1/5000, 1/500, 1/250, my final volume is 12 ul. My guess would be: examples: 1/5000=200 ul= (0,2*100)/12=160ul?

I'm having trouble understanding an excerpt of the question. Whether there is a deep meaning (nd1). I adopted it as valence d to answer the question. See my answer in the attachment. I would like to understand nd1. help.docx

Hi, I'm looking for the equations to perform the wave function of the orbitals, that way I can give a graph. The problem I only encounter situations in basic energy transfer (valence).And also Schrodinger's theory for obtaining energy levels. Task: Make wavefunctions of the sp2, sp3, sd3 hybridized orbitals respectively. I need the wavefunction equations for the hybridized orbitals.

Draw the structures of F, G and H.

How do I do the part b and c of this question (23)? Any hints? One part of me says that in part b, the max friction between the 3 kg and 7 kg block is 15 N, so there will be no relative motion between them. What about 2kg and 3 kg block?

I am having trouble understanding this question. The questions asks the direction of friction. The correct answer is the is that the system cannot remain in equilibrium. One more question is that if the friction coefficient between A and the wall had not been zero what would have been the direction of friction due to A on B then?

Hi, I have a problem where I am to calculate the temperature inside a container after releasing some of the gas (N2) out from the container itself. To calculate the temperature (T2) I am given the temperature before releasing the gas (T1), and also the pressure inside the container before (p1) and after (p2). First i though i might be able to use (p1/T1 = p2/T2)., However, with this I am just ignoring the parameter n, number of molecules, and I am unsure if this is the correct method to use. (pV = nRT) Any help in explaining how to approach this would be much appreciated.

Hmmmm?