Homework Help

To practice conversations with students who study ASL with me, I need to prepare a list of questions each using at least two words from a vocabulary. I got quite a lot of them (examples below), but am stuck with the remaining words: give maybe less little-bit outside not matter take happy various wind Here are some examples of the questions: why does snow become grey? what is the hardest part in learning ASL? do you know an old legend about a man who …

I need to convert 0.1 M of pyridine to mL. Molecular mass of pyridine is 79.1 g/mol. Density is 0.978 g/mL

College Algebra Section R.2 Simplify each expression. Express the answer so that all exponents are positive. Whenever an exponent is zero or negative, we assume that the base is not zero.

College Algebra Section R.2 Simplify each expression. Express the answer so that all exponents are positive. Whenever an exponent is zero or negative, we assume that the base is not zero.

College Algebra Section R.2 Simplify each expression. Express the answer so that all exponents are positive. Whenever an exponent is zero or negative, we assume that the base is not zero.

College Algebra Section R.2 Find domain of y = (-9x^2 - x + 1)/(x^3 + x). See attachment.

College Algebra Section R.2 Find domain of y = -6/(x+ 4). See attachment.

College Algebra Section R.2 Find domain of y = x/(x^2 + 9)

College Algebra Section R.2 Find domain of y = (x^2 + 1)/x. See attachment.

Hi! I am a new user of this forum. Recently I have been studying the general Chemistry class and I have been struggling with the calculation of equilibrium. In this slide, it has declared that 10 mmol H+ is added to 1L of solution, with the buffer 0.1M HCO3 existing. My thinking would be like that : pH = pKa + log (conjugate base/acid), where pH=pKa=6.1 Thus, log (conjugate base/acid) =0 conjugate base [HCO3-] / acid [H+] = 1 When there is 0.1M HCO3, there would be 0.1M H+, however, I cannot drive to the same conclusion as my lecturer. I would like to ask how the lecturer could conclude that log (conjugate base/acid) =1 and why [buffer] =…

This exercise is from Gravitation by Misner, Thorne, Wheeler. I am concerned here with the second part of it, marked with green: My answer for the electric field is (ej, u). For the magnetic field, (ek, ei), where i-j-k are in the cyclical order of 1-2-3. Is it correct? For the reference, here is a components representation of the Faraday tensor in a Lorentz frame:

Hi, I am 15yrs old and I have just started taking engineering science. I am struggling to understand how to solve these equations and I was wondering if someone could help explain them in really simple terms? Please note, I am NOT asking for the answers; I want to learn how to do these myself, so I would really love a breakdown of what to do and why we’re doing it. Thanks in advance.

The problem is 5-5 part d. As worded is: "One radar gun used by the Massachusetts Highway Patrol operates at a frequency of 10.525 X 109 cycles/second. By how many cycles/second is the reflected beam shifted in frequency when reflected from a car approaching at 100 kilometers/ hour?" The book gives the answer 3136, and I can't for the life of me get this answer. I've done this multiple ways and get the same wrong answer every time. Doing similar problems elsewhere I'm getting right answers, so I can only conclude that either I'm overlooking something really, really silly, or there's a typo somewhere in the book. If someone can confirm that 3136 is indeed the…

This isn't really a homework help question I just don't know where to put this. I googled https://www.scientificamerican.com/article/physicists-create-biggest-ever-schroedingers-cat/ . I tried reading the article and some of the terminology is confusing. I have a layman's understanding of semi conductors. I also have a layman's understanding of Schrodinger cat. It is just the rest of the article that confuses me. The reason the article states that the object becomes quantum is because " the Sapphire oscillate and coupled it to a superconducting circuit"? This line is what is confusing me. Can someone explain that line and any other parts of the art…

Just wondering if anyone is able to help me with this biology question. Suggest and explain why osmosis is so important in the structural support systems of plants. (6marks) I have an idea that it's to do with the fact that depending on the state- whether it's hyptonic environment, hypersonic environment or isotonic state. Other than that I have absolutely no idea. Any suggestions would be greatly received.

So I am working on a paper where I discuss the above-mentioned issue. The situation I end up with is that I need to find the speed produced by an ionic thruster functioning at the atmospheric level (thus drag on the sped-up particles can not be ignored). The thruster is operating with 712 volts and the gap between the electrodes is 20mm (the electrodes form a uniform electric field). My current theory is given in images below: The issue is that my teacher says it's wrong and thus can not be in my final draft but I don't know what the issue is... My calculations with the given numbers are also an image below: …

Life is thought to have originated in seawater. Analyse the chemical composition of a cell and indicate the ideal place for the origin of life on our planet.

If I want to reflect sunlight by using concave mirror which had 10cm*10cm size, how much the focal length of concave mirror should be designed in order to obtain 1.5 times light reflection size which had 15cm*15cm?

I have no idea how to calculate the following task since I don't know the enzyme concentration - can someone help me? I can't find a similar task to this - so I'm pretty lost. The KM value for an enzyme is 20 mM. At a koncentration of 30 Mm, how much of the enzyme in percentage is bound to the substrate? A) 40% B) 50% C) 33% D) 60%

How can I find the molecular weight (Mw) of tyrosinase from Agaricus bisporus on the BRENDA database? I have clicked 'show all' to get the molecular data, but I am unsure of what I am looking at. Admittedly, I am a barely a novice in this side of Biology, so any simple suggestions on what I am looking at would be much appreciated 😅 The link is: https://www.brenda-enzymes.org/enzyme.php?ecno=1.14.18.1&organism_list=Agaricus bisporus&Suchword=&showtm=2&UniProtAcc=&reference= I also need to find the number of subunits from this page, as well as the substrates and products. I unfortunately had to miss the class where this was explained, and would…

I am stuck on a question concerning a square root prove. Here it is: Give an example to show that sqrt{a^(2)} is not equal to a. Use it to explain why sqrt{a^(2)} = | a |.

I searched a lot on the internet but couldn't find a step-by-step solution to this integral, perhaps someone has enough knowledge to solve it? If so, can you please write in detail how you did this?

(Apologies if this is the wrong forum, couldn't find one I thought suited. It's technically homework, feel free to move if there's a better fit!) Hi all, I'm looking to do some mixing at home, and measuring with a viscometer. I'll be using tap water, and one other fluid, idealy with a viscosity that's a bit higher than it. Where's the best place I could purchase a fluid that's 1) Reasonably cheap, 2) Has a viscosity at least a small bit higher than water, 3) Has its density and viscosity values available?

How do you calculate the % water ? Let's say the % purity of Muriatic Acid is 18% how do you calculate the % Water? In terms of the reason for difference what should I look at? Like the dissolution? IDK how I would compare these solutions as they have different uses and properties.

Hi! I have been watching videos on youtube helping my understanding of the jumping ring experiment, where an electromagnet with an iron core connected to an AC source would make the aluminium ring jump. And if there are two rings, would one jump and the other stay on the iron core? Thankyou!