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Chemistry and Chemical Reactivity (9th Edition)
a) $K_b=K_w/K_a=4.35\cdot10^{-4}$ b) It would be between hydrogen carbonate and hexaaquanickel ion. Water is an acid weaker than the ion and hydroxide is a base stronger than the molecule. c) $K_a=x\cdot x/(0.015-x)$ $x=[H_3O^+]=5.87\cdot10^{-7}$ $pH=6.23$ | {} |
# Learning Expected value
We probably have played the game "Throwing Balls into the Basket". It is a simple game. We have to throw a ball into a basket from a certain distance. One day we were playing the game. But it was slightly different from the main game.
In our game we were $$N$$ people trying to throw balls in... | {} |
# Moments and transition probability of Trinomial Tree
I just switched from using WP-Latex to MathJax since Chrome is soon going to have built-in support for MathJax and it is easier to recover the tex codes for the reader.
To test out the functionality, I wanted to write down some equations befitting to the occasion... | {} |
# Homework 1
Due by 11:59 PM on Wednesday, September 16, 2020
Getting your assignment: You can find template code for your submission here at this GitHub Classroom link. All of the code you write you should go in hw1.Rmd, and please knit the Markdown file in your completed submission.
## The Rescorla-Wagner Model
T... | {} |
Definitions
# Equation of time
The equation of time is the difference over the course of a year between time as read from a sundial and time as read from a clock, measured in an ideal situation (ie. in a location at the centre of a time zone, and which does not use daylight saving time). The sundial can be ahead (fas... | {} |
# Impact of heavy-flavour production cross sections measured by the LHCb experiment on parton distribution functions at low x
Abstract : The impact of recent measurements of heavy-flavour production in deep inelastic $ep$ scattering and in $pp$ collisions on parton distribution functions is studied in a QCD analysis i... | {} |
# Find multiple negations in English text
I'm trying to finding double or triple (or more) negations in sentences/paragraphs in some 2MiB of Markdown documents.
The documents in question can be found here:
https://svn.apache.org/repos/asf/trafficserver/site/trunk/content/docs/trunk/
They are the documentation of a ... | {} |
## I'm thinking of selling my scripts. Which one are you most excited for? | Proxies123.com
I'm thinking of selling my scripts in my store later this year, I just need to update them correcting errors, improving the design, making it work with php 7 and adding new features. Which script is more interested in seeing it... | {} |
#### Volume 24, issue 3 (2020)
Recent Issues
The Journal About the Journal Editorial Board Editorial Interests Editorial Procedure Subscriptions Submission Guidelines Submission Page Policies for Authors Ethics Statement ISSN (electronic): 1364-0380 ISSN (print): 1465-3060 Author Index To Appear Other MSP Journals
I... | {} |
During AMC testing, the AoPS Wiki is in read-only mode. No edits can be made.
# Difference between revisions of "2017 AMC 12B Problems/Problem 8"
## Problem 8
The ratio of the short side of a certain rectangle to the long side is equal to the ratio of the long side to the diagonal. What is the square of the ratio of... | {} |
# Questions tagged [dual-simplex]
For questions about the dual Simplex method.
8 questions
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### warmstarting simplex algorithm- how much can problems differ from each other?
I'm working on an implementation of the simplex algorithm. I want to solve problems in real time every... | {} |
Lesson Objectives
• Demonstrate an understanding of Whole Number Exponents
• Learn how to use the Product Rule for Exponents
• Learn how to use the Power to Power Rule for Exponents
• Learn how to use the Power of a Product Rule for Exponents
• Learn how to use the Power of a Quotient Rule for Exponents
## How to Simp... | {} |
# Find it.
Algebra Level 2
What is the value of the given expression
$\sqrt[3]{26-15\sqrt{3}} + \sqrt[3]{26+15\sqrt{3}} ?$
× | {} |
Explore BrainMass
# Series Convergence
Not what you're looking for? Search our solutions OR ask your own Custom question.
This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!
Please see attached file for full problem description.
1) Consider the series where ... | {} |
## Chemistry and Chemical Reactivity (9th Edition)
This problem requires observation of the stoichiometric ratio between ions and the solute. a) $0.12\ M Ba^{2+}, 0.24\ M\ Cl^{-}$ b) $0.0125\ M\ Cu^{2+}, 0.0125\ M\ SO_4^{2-}$ c) $1.00\ M\ K^+, 0.500\ M\ Cr_2O_7^{2-}$ | {} |
## Elementary Geometry for College Students (6th Edition)
Assume $x^{2}$ $=$ 25. Then, through algebra, we find $x$ = 5. This contradicts the given statement. Thus, the assumption $x^{2}$ $=$ 25 is false, and it follows that $x$ $\ne$ $5$. | {} |
# The Relative Specific Type Ia Supernovae Rate From Three Years of ASAS-SN
Brown, JS, Stanek, KZ, Holoien, TW-S, Kochanek, CS, Shappee, BJ, Prieto, JL, Dong, S, Chen, P, Thompson, TA, Beacom, JF, Stritzinger, MD, Bersier, D and Brimacombe, J (2019) The Relative Specific Type Ia Supernovae Rate From Three Years of ASA... | {} |
# Thread: Curl of Vector Field
1. ## Curl of Vector Field
Find the curl of vector field.
F(x, y, z) = xyz i - x^2 y k
∇xF = 0
No curl in this vector field.
The book's answer is
∇xF = -x^2 i + 3xy j - xz k
Who is right and why?
2. ## Re: Curl of Vector Field
Originally Posted by USNAVY
Find the curl of vector ... | {} |
Zassenhaus Lemma
Lemma
Let $G$ be a group.
Let $H_1$ and $H_2$ be subgroups of $G$.
Let:
$N_1 \lhd H_1$
$N_2 \lhd H_2$
where $\lhd$ denotes the relation of being a normal subgroup.
Then:
$\dfrac {N_1 \left({H_1 \cap H_2}\right)} {N_1 \left({H_1 \cap N_2}\right)} \cong \dfrac {H_1 \cap H_2} {\left({H_1 \cap N_2}... | {} |
# How do you write the inverse variation equation of the following. Y varies inversely with x and y = -12 when x = 6?
Jul 3, 2016
Inverse variation equation is $y = - \frac{72}{x}$
#### Explanation:
When $y$ varies inversely with $x$, we have $y \propto \frac{1}{x}$ i.e.
$y = \frac{1}{x} \times k$, where $k$ is a ... | {} |
## Intermediate Algebra for College Students (7th Edition)
$1$
Recall the acronym PEDMAS, which tells us the order of operations: P: Parenthesis and other grouping symbols (including fraction bars) E: Exponents D/M: Division and Multiplication (from left to right) A/S: Addition and Subtraction (from left to right) Use... | {} |
# Homework Help: Easy thermodynamics problem
1. Jun 16, 2005
### Physics_wiz
This problem is supposedly easy but I just can't figure out how to do it.
A heat pump is used to heat a house and maintain it at 24°C. On a winter day when the outdoor temperature is -5°C, the house is estimated to lose heat at a rate of 8... | {} |
Search:
# Chemical equilibrium
## Exercise 12
Write the expression of constant $K$ for the equilibrium: $2H_2O_2(g)$ $2H_2O(l)$ $+$ $O_2(g)$ $ZnO(s)$ $+$ $CO(g)$ $Zn(s)$ $+$ $CO_2(g)$ $AgCl(s)$ $+$ $Br^-(aq)$ $AgBr(s)$ $+$ $Cl^-(aq)$ $CuSO_4\cdot5H_2O(s)$ $CuSO_4(s)$ $+$ $5H_2O(g)$ | {} |
# Compute the minimum $a(n)>a(n-1)$ such that $a(1)+a(2)+\dots+a(n)$ is prime (OEIS A051935)
## Background
Consider the following sequence (A051935 in OEIS):
• Start with the term $2$.
• Find the lowest integer $n$ greater than $2$ such that $2+n$ is prime.
• Find the lowest integer $n'$ greater than $n$ such that $... | {} |
# Symbol meaning
1. Sep 14, 2014
Hi,
I just started the chapter work and kinetic energy in my physics book, and I'm uncertain about the meaning of two symbols. They are 'F sub "two vertical lines"' and 'F sub "an upside down T/perpendicular symbol"'? Does it mean cos∠ and sin∠, respectively?
Nevermind, I figured it... | {} |
# How often is an irreducible polynomial irreducible?
The question doesn't of course make sense as written in the title. Here is what I really mean:
Given a global field $k$ and an irreducible polynomial $P \in k[x]$
Is it true that $P$ is reducible at almost all places?
I would guess that Hensel's lemma plus an ap... | {} |
Deepak Scored 45->99%ile with Bounce Back Crack Course. You can do it too!
# If x + y + z = 8 and xy + yz + zx = 20, Find the value of
Question:
If $x+y+z=8$ and $x y+y z+z x=20$, Find the value of $x^{3}+y^{3}+z^{3}-3 x y z$
Solution:
Given,
x + y + z = 8 and xy + yz + zx = 20
We know that,
$(x+y+z)^{2}=x^{2}+... | {} |
# Chapter 4 Quadratic Functions and Factoring - 4.3 Solve x(squared) + bx + c = 0 - 4.2 Exercises - Mixed Review - Page 258: 79
-1, 13
#### Work Step by Step
Since this is an absolute value expression, the value inside the absolute value can be positive or negative. Thus, considering both possibilities: $$x-6 =7 \\ ... | {} |
## Regularity of extremal functions in weighted Bergman and Fock type spaces.(English)Zbl 1429.30050
This article deals with the regularity of solutions to extremal problems in certain weighted Bergman spaces in discs, as well as in Fock spaces.
For $$0 < R\le \infty$$, let $$\mathbb{D}_{R}$$ be the open disc of radiu... | {} |
# American Institute of Mathematical Sciences
July 2018, 17(4): 1573-1594. doi: 10.3934/cpaa.2018075
## On the Cauchy problem for the Zakharov-Rubenchik/ Benney-Roskes system
1 Fak. Mathematik, University of Vienna, Oskar MorgensternPlatz 1, A-1090 Wien, Austria 2 Wolfgang Pauli Institute c/o Fak. Math. Univ. Vien... | {} |
Triangular number AND sum of first m factorials
01-09-2018, 04:31 PM
Post: #1
Joe Horn Senior Member Posts: 1,829 Joined: Dec 2013
Triangular number AND sum of first m factorials
153 (my favorite number) is both a triangular number (the sum of the integers 1 through $$n$$; in this case $$n=17$$) as well as the sum of ... | {} |
# Algorithm to shoot at a target in a 3d game
For those of you remembering Descent Freespace it had a nice feature to help you aim at the enemy when shooting non-homing missiles or lasers: it showed a crosshair in front of the ship you chased telling you where to shoot in order to hit the moving target.
I tried using... | {} |
# Block matrix with headings
I created a matrix using easybmat and blkarrary and I would like to label the columns above the matrix. This is the code I am using and what the matrix looks like at the moment:
\usepackage{easybmat}
\usepackage{amsmath}
\usepackage{multirow,bigdelim}
\usepackage{blkarray}
\begin{document... | {} |
# Question on “Homotopy invariance”
i have this from Hatcher's book "Algebric topology"
And i don't understand why $\displaystyle \partial P(\sigma)=\sum_{j\leq i}(-1)^i(-1)^j F\circ (\sigma\times id)|[v_0,...,\widehat{v}_j,...,w_i,...,w_n]+\sum_{j\geq i}(-1)^i(-1)^{j+1} F\circ (\sigma\times id)|[v_0,...,v_i,\widehat... | {} |
Dec 21
### saturation point psychology
Note that virtually all computer software implementing these spaces use a very rough approximation to calculate the value they call "saturation", such as the formula described for HSVand this value has little, if anything, to do with the description shown here. (BJHP28). Surveys... | {} |
Mettl Profit and Loss Quiz 1
Question 1
Time: 00:00:00
Tarak Mehta sold a pair of T-shirts and jeans at 25% profit. The profit obtained on Tshirt was 20%. Had he reduced the both cost price of the T-shirt and the selling price of the T-shirt by Rs. 200, his profit on the pair would have risen to 30%. Earlier the cost... | {} |
There are two general approaches to representing solutions in the discontinuous galerkin method: nodal and modal.
1. Modal: Solutions are represented by sums of modal coefficients multiplied by a set of polynomials, e.g. $u(x,t) = \sum_{i=1}^N u_i(t) \phi_i(x)$ where $\phi_i$ is usually orthogonal polynomials, e.g. Le... | {} |
Tag Info
In probability and statistics, a probability distribution assigns a probability to each measurable subset of the possible outcomes of a random experiment, survey, or procedure of statistical inference.
In applied probability, a probability distribution can be specified in a number of different ways, often ch... | {} |
# Introduction to Harmonic Analysis on Reductive P-adic Groups. (MN-23): Based on lectures by Harish-Chandra at The Institute for Advanced Study, 1971-73
Allan J. Silberger
Pages: 380
https://www.jstor.org/stable/j.ctt130hkdj
1. Front Matter
(pp. None)
2. FOREWORD
(pp. i-i)
These notes represent the writer's attempt... | {} |
# `int_0^oo xe^(-x/3) dx` Determine whether the integral diverges or converges. Evaluate the integral if it converges.
We will use integration by parts
`int udv=uv-int vdu`
`int_0^infty xe^(-x/3)dx=|[u=x,dv=e^(-x/3)dx],[du=dx,v=-3e^(-x/3)]|=`
`-3xe^(-x/3)|_0^infty+3int_0^infty e^(-x/3)dx=`
`(-3xe^(-x/3)-9e^(-x/3))... | {} |
Archive
## Tag Cloud
3d account algorithms announcement archives arduino artificial intelligence assembly async audio bash batch blog bookmarklet booting c sharp c++ challenge chrome os code codepen coding conundrums coding conundrums evolved command line compiling css dailyprogrammer debugging demystification distri... | {} |
### What is the Detrended Price Oscillator (DPO)?
A detrended price oscillator is an oscillator that strips out price trends in an effort to estimate the length of price cycles from peak to peak or trough to trough. Unlike other oscillators, such as the stochastic or moving average convergence divergence (MACD), the D... | {} |
# Prove that $\det(A) \geq 0$.
Let $$A$$ be a $$4\times 4$$ skew-symmetric real matrix. Prove that $$\det(A) \geq 0$$.
I know
$$A = \begin{bmatrix}0&a&b&c\\-a&0&d&e\\-b&-d&0&f\\-c&-e&-f&0\end{bmatrix}$$
By calculating the alternating sum of the products of the top row's entries and their minors, I was able to deduc... | {} |
# Examples: Algebraic Topology
## Standard Spaces and Modifications
\begin{align*} {\mathbb{D}}^n = \mathbb{B}^n &\coloneqq\left\{{ \mathbf{x} \in {\mathbf{R}}^{n} {~\mathrel{\Big\vert}~}{\left\lVert {\mathbf{x}} \right\rVert} \leq 1}\right\} {\mathbb{S}}^n &\coloneqq\left\{{ \mathbf{x} \in {\mathbf{R}}^{n+1} {~\math... | {} |
# Why is g[#1, #2] & different from g[##] & for a function with two variables in this example? [duplicate]
If we only consider functions with two variables, I expect g[#1, #2] & is the same as g[##] &. But in the following example, they are not the same. Why?
expr = f[x, y] + D[f[x, y], x]
(* -> f[x, y] + Derivative[... | {} |
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# PROBLEM LINK:
Author: Dmytro Berezin
Tester: Shang Jingbo and Gerald Agapov
Editorialist: Devendra Agarwal
SIMPLE
# PREREQUISITES:
Basic Dynamic Programming
# PROBLEM:
Given Frog's location on the X axis and they can communicate... | {} |
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Hardcover | $62.00 Short | £42.95 | ISBN: 9780262083591 | 344 pp. | 6 x 9 in | 1 illus.| March 2007 Paperback |$25.00 Short | £17.95 | ISBN: 9780262582728 | 344 pp. | 6 x 9 in | 1 illus.| March 2007
"“University Presses in Space” showcases a special sampling of the many works that university presses ha... | {} |
# Advent of Code: Day 2
Source
Part 1: A gift requires enough wrapping paper to cover the surface plus an additional amount equal to the area smallest side. Calculate the total wrapping paper needed for a list of dimensions of the form 2x3x4.
total_area = 0
for line in sys.stdin:
l, w, h = list(sorted(map(int, line... | {} |
# How hard is a known prefix hash preimage attack on SHA-2?
Suppose the attacker knows $X, Z$ such that
$H(X || Y) = Z$
If bit-length(Y) < 60 then a brute force attack is possible.
What if bit-length(Z) = 256 (such as in SHA-256), bit-length(X) = 128, or bit-length(Y) = 256? Are there any published paper with resul... | {} |
Muffins, math, and the lies we tell about both
I made my favorite pumpkin muffins this morning, for the first time in quite a while, but I made them differently today.
The recipe calls for one cup of pumpkin from a can. A can of pumpkin contains about a cup and a half, and what are you gonna do with an extra half cup... | {} |
# What is the answer to this infamous “Common Core” question?
The following question (number 15 of this test) has become infamous as a poor "Common Core" question. What is the correct answer?
Juanita wants to give bags of stickers to her friends. She wants to give the same number of stickers to each friend. She's not... | {} |
## Classical Local Systems
I lied to you a little. I may not get into the arithmetic stuff quite yet. I’m going to talk about some “classical” things in modern language. In the things I’ve been reading lately, these ideas seem to be implicit in everything said. I can’t find this explained thoroughly anywhere. Eventual... | {} |
# what do they mean here?
#### allegansveritatem
##### Full Member
Here is the problem:
I
I am stuck at c). The only thing I could think of doing is adding a 5 to the 1/2x-3 and then putting a minus sign in front of the function for reflecting it. Here is what thhis looks like in calculator window:
Is this what the... | {} |
When I try to fetch a directory with get "Path To\Directory\", I get the following error:
NT_STATUS_FILE_IS_A_DIRECTORY opening remote file Path To\Directory
(Using smbclient v3.6.23. The server is a computer running Windows 7 Home Edition.)
• smbclient uses the same type of semantics that server clients like FTP a... | {} |
# Map 2
At what scale is made map if the distance 8.2 km corresponds on the map segment 5 cm long?
M 1: 164000
### Step-by-step explanation:
$M=8.2\mathrm{/}5\cdot 1000\cdot 100=164000\approx 1:164000$
We will be pleased if You send us any improvements to this math problem. Thank you!
Tips to related online calc... | {} |
### 机器人代写|SLAM代写机器人导航代考|FastSLAM with Unknown Data Association
statistics-lab™ 为您的留学生涯保驾护航 在代写SLAM方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在代写SLAM代写方面经验极为丰富，各种代写SLAM相关的作业也就用不着说。
• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
... | {} |
Mathematics Department
# Operator Algebras and Dynamics Seminar
## Spring 2022
All talks are from 3:45-4:45 p.m. in the Seminar room, unless otherwise specified.
• Apr
11
• Low Complexity Subshifts admitting Mixing Measures
Darren Creutz
Time: 03:45 PM
#### View Abstract
Word complexity is a fine-grained quantifi... | {} |
Mathjax Install
9cq1lvj7fjaeqr zua5c3wjma b1lgf5odjts0 t59u8bbood a807bwfxo00eb vhi5vq2kazarj0 0axn4ifhamlqbc m9wlhnhsbl3s0eo igonmitw2vm0j7f opbca5c42r90u 1tatrq36l6m1 ouaahf60eab796u f45h9cxeeg50al2 7edwl9caomz99 7demiixkeo2 8am1lgby23 55tr1v3l63632 s2fim9wieo r77wh42b9p8mhn9 6lyaqlioevq n6gzu8ajewn4fc ns0jwsiykel v... | {} |
# Get a random event out of a set of mutually exclusive events
Get a random event from a set of collectively exhaustive and mutually exclusive events, with this set being represented by a list of tuples (name, probability).
### Reminder:
• Collectively exhaustive events means at least one of them must occur.
• Mutua... | {} |
# The Kernel Samepage Merging Process
KSM, simply put is a service daemon which scans the page addresses to find duplicate pages, merges them and therefore reduces the memory density. The code used in this post as example can be found under /mm/ksm.c in the kernel source.
Before continuing, it is important to keep in... | {} |
# What is a Rational Number
The Rational Numbers are those numbers which can either be whole numbers or Fractions or Decimals. Rational numbers are the Subsets of Real Numbers and can be written as a Ratio of two integers in the form $\frac{p}{q}$ where 'p' and 'q' are integers and 'q' is non zero.
A Set of rational n... | {} |
Tag Info
Hot answers tagged white-dwarf
38
The answer to your question is both yes and no, depending on the circumstances. Two white dwarfs colliding would likely yield a Type Ia supernova, assuming the combined mass exceeded the Chandrasekhar limit ($\sim1.4$ solar masses). The unstable object resulting from the co... | {} |
## Introduction
Recent appreciation for the importance of microbes in human health and disease has prompted the generation of many metagenomic HTS (high throughput sequencing) datasets1. The increase in available HTS data from human tissues also represents an enormous resource because many of these datasets include re... | {} |
## superscript
superscript — A superscript (as in x², the mathematical notation for x multiplied by itself).
superscript ::=
## Description
A `superscript` identifies text that is to be displayed as a superscript when rendered.
### Processing expectations
Formatted inline. Superscripts are usually printed in a sm... | {} |
## 15.15
$\frac{d[R]}{dt}=-k[R]; \ln [R]=-kt + \ln [R]_{0}; t_{\frac{1}{2}}=\frac{0.693}{k}$
Gabriela Carrillo 1B
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am
### 15.15
Is the concentration of CH3Br raised to the power of 1.2 in the rate law for the reaction? What does 1.2 imply?
Johann Park 2B
Posts: 51
Joined: Thu... | {} |
# What are the coordinates of the vertex of y = x^2 - 4x - 5?
Apr 28, 2015
$y = {x}^{2} - 4 x - 5$
is a parabola with a slope (for arbitrary values of $x$) given by the expression
$\frac{\mathrm{dy}}{\mathrm{dx}} = 2 x - 4$
This slope is equal to $0$ at the vertex of the parabola
$2 x - 4 = 0$
$\rightarrow x = 2$
W... | {} |
• # question_answer Given below is the cost schedule of a product produced by a firm. The market price per unit of the product at all levels of output is Rs 12. Using marginal cost and marginal revenue approach, find out the level of equilibrium output. Give reasons for your answer: Output (Units) 1 2 3 4 5 6 Average (... | {} |
### Home > PC3 > Chapter 6 > Lesson 6.1.3 > Problem6-61
6-61.
Write an equation for a fourth-degree polynomial function that has a triple root at $x = 2$, a root at $x = −7$, and passes through the point $\left(−1, −9\right)$.
$p\left(x\right)=a\left(x-2\right)^3\left(x-\left(-7\right)\right)$
$p\left(-1\right)=-9$ | {} |
# Homework Help: Familiar? But confirmed correct one
1. Nov 13, 2004
### CartoonKid
4. A 5.00 g bullet moving with an initial speed of 400 m/s is fired into and passes through
a 1.00 kg block (See figure).
400 m/s
v 5.00 cm
The block, initially at rest on a frictionless, horizontal surface is connected to a spring
w... | {} |
I don't really know how to set this problem up.
A cylindrical container of an incompressable liquid withdensity ρ rotates with constant angular speed ωabout its axis of symmetry, which we take to be the y-axis.
a.) Show that the pressure at a given hieght within the fluidincreases in radial direction (outward from the... | {} |
International Association for Cryptologic Research
# IACR News Central
You can also access the full news archive.
Further sources to find out about changes are CryptoDB, ePrint RSS, ePrint Web, Event calender (iCal).
2013-06-17
15:17 [Pub][ePrint]
In this paper, we report that we have solved the shortest vector pr... | {} |
Type setting is an art, and as most arts, it is extremely subjective. However, I will try to venture a few of my subjective opinions here as absolute truth (just because a bit of controversy is fun; feel free to disagree). Today we will look a bit at how interword spacing changes the feeling of a text, why margin protr... | {} |
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It is currently 27 Aug 2016, 16:20
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
C... | {} |
# fa.functional analysis – Eigenvalues of operator
In the question here
the author asks for the eigenvalues of an operator
$$A = begin{pmatrix} x & -partial_x \ partial_x & -x end{pmatrix}.$$
Here I would like to ask if one can extend this idea to the operator
$$A = begin{pmatrix} x & -partial_x +c\ partial_x+c & ... | {} |
# Difference between revisions of "Tschirnhausen Cubic Catacaustic"
A semicubical parabola is a curve defined parametrically as
$x = t^2$
$y = at^3$ | {} |
×
Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 18 - Problem 18.37
Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 18 - Problem 18.37
×
ISBN: 9780134414232 1274
## Solution for problem 18.37 Chapter 18
Chemistry: The Central Science | 14th Edition
• Textbook Solu... | {} |
Delta Sigma Theta! The bright gleam of thy vision has lighted the world . I joined PDC in 2011 and have enjoyed getting to know other pharmacists and students around the world through one of the original social networks. Delta Sigma Theta! But it goes down because the $$\Delta \chi$$ decreases to a greater extend. We p... | {} |
Have a look at our
# EARLY START
The thing i hate most is when it is I have to write something that i don’t write all, but w/e.In the end I actually do it and realize it.
Have a look at our
# GROWING UP
The thing i hate most is when it is I have to write something that i don’t write all, but w/e.In the end I actua... | {} |
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# Tag Info
### Digital Distortion effect algorithm
Thanks to the plot in Olli Niemitalo's answer I got convinced that the formula given in the book has a sign error. The non-linearity used for fuzz or distortion is always some type of smoothed ...
• 79.2k
### Precise 5th ... | {} |
# Infinite Series $\sum\limits_{k=1}^{\infty}\frac{1}{(mk^2-n)^2}$
How can we prove the following formula? $$\sum_{k=1}^{\infty}\frac{1}{(mk^2-n)^2}=\frac{-2m+\sqrt{mn}\pi\cot\left(\sqrt{\frac{n}{m}}\pi\right)+n\pi^2\csc^2\left(\sqrt{\frac{n}{m}}\pi\right)}{4mn^2}$$
What is the general method for finding sums of the ... | {} |
## Wednesday, February 15, 2006
### Climate change on Saturn
I removed information about a certain medal that was far too preliminary.
These days, every child knows that there is a scientific consensus that every deviation of the climate from the constant function is caused by crimes of the humankind, especially by ... | {} |
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We can assume WLOG that $\bar x=\bar p=0$ and $\hbar =1$. We don't assume that the wave-functions are normalised. Let $$\sigma_x\equiv \frac{\int \mathrm dx\; |x|\;|\psi(x)|^2}{\int\mathrm dx\; |\psi(x)|^2}$$ and $$\sigma_p\equiv \frac{\int \mathrm dp\; |p|\;|\tilde \psi(p)|^2}{\int\mathrm dx\; |\psi(x)|^... | {} |
# A car moving with an initial speed v collides with a second stationary car that is 54.9 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 39.7 percent of the original speed. Calculate the final speed of the second car. Give your answer in units of the ini... | {} |
Use indicators to estimate the pH of solutions of various acid concentrations. This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base. See the answer Determination of pH. The hydronium ion concentration in a sample of rainwater is found to be ... | {} |
Lemma 97.27.8. In Situation 97.27.1 assume given a closed subset $Z \subset S$ such that
1. the inverse image of $Z$ in $X'$ is $T'$,
2. $U' \to S \setminus Z$ is a closed immersion,
3. $W \to S_{/Z}$ is a closed immersion.
Then there exists a solution $(f : X' \to X, T, a)$ and moreover $X \to S$ is a closed immer... | {} |
# Can we recover the adjacency matrix of a graph from its square?
For the sake of this question, a graph here has a finite number of vertices, with undirected simple edges, no loop, and no weight or label on edges or vertices. Therefore, its adjacency matrix $$A=[a_{i,j}]$$ is a symmetric matrix with entries in $$\{0,... | {} |
# Isospin question
1. Jun 23, 2007
### malawi_glenn
This is from Krane, p 389:
The neutron and the proton are treated as two different states of a single particle, the nucleon. The nucleon is assigned with a fictious spin vector, called isospin.
Nucleon has isospin number t = ½, a proton has $m_{t} = 1/2$ and neut... | {} |
# Tag Info
17
You need nothing more than your understanding of $$\int_{-\infty}^\infty f(x)\delta(x-a)dx=f(a)$$ Just treat one of the delta functions as $f(x)\equiv\delta(x-\lambda)$ in your problem. So it would be something like this: $$\int\delta(x-\lambda)\delta(x-\lambda)dx=\int f(x)\delta(x-\lambda)dx=f(\lambda)... | {} |
# The 229-thorium isomer: doorway to the road from the atomic clock to the nuclear clock
@article{Thirolf2019The2I,
title={The 229-thorium isomer: doorway to the road from the atomic clock to the nuclear clock},
author={Peter G. Thirolf and Benedict Seiferle and Lars C. von der Wense},
journal={Journal of Physics B: A... | {} |
# Eastern Manufacturing is involved with several situations that possibly involve contingencies
P 13-6 Various contingencies
Eastern Manufacturing is involved with several situations that possibly involve contingencies. Each is described below. Eastern’s fiscal year ends December 31, and the 2011 financial statements... | {} |
# fox flux, three years later
Post Syndicated from Eevee original https://eev.ee/dev/2020/08/04/fox-flux-three-years-later/
I’m working on a video game! Like, a serious one.
## The past
I wrote the original game (very slightly NSFW) for my own “horny” game jam, Strawberry Jam (more likely to be NSFW), way back in F... | {} |
Research article Special Issues
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Permutation entropy: Influence of amplitude information on time series classification performance
Technological Institute of Informatics(ITI), Universit... | {} |
# Thread: Ranges without the aid of a calculator Help
1. ## Ranges without the aid of a calculator Help
This is a pre-calc review for Calculus (I think this is the right area)
I can do domains completely fine but I have trouble with ranges. Like for instance y=sqrt(x+1), y=1/(sqrt(x+1)) and y= sqrt((1/x)+1). For the... | {} |
# Pattern and Sequence Puzzles
One of the harder types of question to answer effectively is a puzzle, which as I define it means that there is no routine way to solve it, so any hint would likely give away the answer. But sometimes these are only “puzzles” to us, because we don’t know the context that would have told ... | {} |
Maryland 6 - 2020 Edition
3.03 Ratio tables
Lesson
A ratio compares the relationship between two values. It compares how much there is of one thing compared to another.
For example, if a pie recipe calls for $2$2 tablespoons of brown sugar per $1$1 apple, we could write this as a ratio
$2:1$2:1
What if we wanted to... | {} |
# How do you simplify root 3 (0.001x^3)?
$\frac{x}{10}$
Re-write number under root symbol as $0.001 {x}^{3} = {x}^{3} / 1000 = {x}^{3} / {10}^{3}$
Now apply $\sqrt[n]{\frac{a}{b}} = \frac{\sqrt[n]{a}}{\sqrt[n]{b}}$
$\sqrt[3]{{x}^{3} / {10}^{3}} = \frac{x}{10}$ | {} |
# Camilo Enrique Argoty lecture series
Camilo Enrique Argoty from the Sergio Arboleda University in Bogota, Colombia visits Institute for Research in Fundamental Sciences in Tehran, Iran between May 4 and May 12, 2016 for giving some lectures on the model theory of Hilbert spaces. This mini course gives a panorama of ... | {} |
If there are 89 chickens and half of that is brown and half of the other half is grey how many chickens are white?
If there are 89 chickens and half of that is brown and half of the other half is grey how many chickens are white?
9. Find the area of a circle having a circumference of 382. Round to the nearest tenth. ... | {} |
A sinusoidal wave has a frequency of 50 Hz with 30 A rms current, Which of the following equations represent this wave?
This question was previously asked in
VSSC (ISRO) Technician B (Electronic Mechanic) Previous Year Paper (Held on 25 Sept 2016)
View all ISRO Technician Papers >
1. i = 42.42 sin 314 t
2. i = 60 sin ... | {} |
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What is the radius of a circle inscribed in a triangle with sides of length $5$, $12$ and $13$ units?
In $\triangle{ABC}$, segments AB and AC have each been divided into four congruent segments. We must find the fraction of the triangle that is shaded. | {} |
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