Writing Definition and 712 Threads

Homework Statement I need to write Kirchhoff rues for the following circuit. This is not for a physics class, but for a programming class. I can do that part, but I am not sure if the equations are correct. Homework Equations The Attempt at a Solution V1-I1*R1-(I1-I2)R3-I1*R2=0...

Homework Statement I am supposed to write a program in C that does the following: It creates a 2d array from your specifications and as inputs takes only letters 'a' to 'z', 'A' to 'Z' and '*' and nothing else. It should immediately exit if something else is inputed. This array represents a...

Would you please explain #: number sign shortly ns 1. How can I put a two-word phrase into bold type using number sign? I try to demonstrate it with using name of sign instead of sign itself. nsns I come nsns Above will appear as ## I come ## but I want it seem properly, abstract and all...

1. Homework Statement First, if you want to skip my explanation, I believe the error is somewhere in the last 15 lines of code or so. Heres some background on test cases: Use stating member variables to use a class that helps you convert a double number into english words. For example, if a...

So I'm working on a creative writing exercise, and I need some ideas. It's futuristic science fiction, set about 100 years in the future. The plot in a nutshell is that a rogue element of the government (think DARPA, only more evil) is trying to develop faster than light communication using...

Homework Statement Write the equations for the two mesh current i1 and i2. The circuit and the answer to mesh 1 are showing below Homework EquationsThe Attempt at a Solution My answer came out to be the same as the answer key except for the -25di1/dt term. It seems that this term gets...

I have written the following on my poster: Special thanks to: "Professor Name" and "Professor Name" for their support through out this project, my numerous colleagues, #1, #2, #3, #4, #5, #6 for their assistance during lab work and last but not least to my parents "Dad" and "Mom" for their...

Hey everyone, So I'm writing the script for a Youtube show I'm making, and it's pretty heavy on the science/physics side in terms of exposition. So before i jump into what i want to ask let me just briefly explain the story. A Time traveler and his time traveling machine go back 30 years in...

I am a science fiction author working on my fifth book. I have a question regarding mass and inertia that I thought maybe I could get some input/insight here. And this is for science fiction... If there existed the mechanism to make a small spaceship massless by the means of a supposed mass...

hi, do you happen to know any app for iOS that can create pdf-s by writing LaTeX. I know of Texpad and Texwriter but don't know if they can create pdf-s from the code you write. Any help?

Homework Statement For our final test preparation we were given a few problems to write and this is one of them: I would be very grateful if you could help me find the easiest way to solve it. Homework Equations 3. The Attempt at a Solution [/B] First let me tell you my plan for writing this...

Hi there! So for about a month, I've been self-studying mathematical physics using Mathematical Physics by Hassani. It's a big change for me, after only Stewart calculus, Boyce DE and some linear algebra course, but it's been loads of fun! Now, writing proofs is something fairly new to me, and...

Homework Statement Define a procedure that does the following: From the string of numbers from 1 - 9 it creates a list that contains the numbers that are bigger than the preceding number and adds the smaller ones to a sub-list. Example: string='3057842103' print(numbers_in_list(string))...

I am given a prompt to: Write a copy assignment operator for CarCounter that assigns objToCopy.carCount to the new objects's carCount, then returns *this. #include <iostream> using namespace std; class CarCounter { public: CarCounter(); CarCounter& operator=(const CarCounter&...

I wonder if it is possible to write the components of the metric tensor (or any other tensor) as a summ of functions of the coordinates? Like this: g^{\mu\nu} = \sum_{\mu}^{D}\sum_{\nu}^{D} g_{_1}(x^{\mu}) g_{_2}(x^{\nu}) where g1 and g2 are functions of one variable alone and D is the...

Homework Statement [/B] Homework Equations The Attempt at a Solution [/B]

So I recently checked online to find out I got a 69% I thought I had a passing grade on because I feel like I put a fair amount of work into it and also went to a tutor for it. My teacher tries to be hard and warns us to write using correct MLA format in our class or else she wouldn't read it...

I was just wondering in writing the range of values for which the function is increasing or decreasing in in a positive or a negative way , The difference caused by the use of the symbols $'>'$ and $'≥'$ or in $'<'$ or $'≤ '$ For example If we consider the graph of the function...

I am studying Bsc physics. Edit by mod: removed spam Please give me the details about the above question.

Homework Statement The coefficient, β, of thermal expansion of a liquid relates the change in the volume V (in m3) of a fixed quantity of a liquid to an increase in its temperature T (in °C): dV = βV dT (a) Let ρ be the density (in kg/m3) of water as a function of temperature. (For a mass m of...

Every once in awhile I'll change my writing set up to use thicker lead, differently lined paper, type of notebook, etc. I never seem to be satisfied with anyone of them and it can be a hassle trying to keep everything in one place if they're all in different formats. At the moment, I'm writing...

The origin of the universe for an upcoming story I have planned hinges around an idea where, when the asteroid that killed the dinosaurs hit Earth, instead of wiping out the dinosaurs, it opened up a portal that deposited them in another part of the galaxy. Now, this is of course most assuredly...

I'm currently writing a paper on the Multiverse. I do have a theory of my own and have made the outline and started working on it. However, the language seems to unscientific, in the sense, its not very objective and crisp. How do i improve the quality of language and content of the paper. Any...

When dealing with heat transfer, there are cases where Q can be expressed by C*ΔT, for some proportionality constant C. However, in isothermal processes for example, this formula would lead to a mistake, for any value of C (because it would imply Q=0, which is not true generally speaking). What...

One way that I often write recursive functions in my work is by having an optional parameter that is used for all calls after the first. For example, here's how I might implement the classic "Find the largest palindrome in a given string" interview-type problem: using System; public static...

Hello I don't know is it right place to ask this question but does anyone know a writing program that allows to write Equations?

Hi. I am an electrical engineering student in my final year. I want to write a research or review paper this year before completing my degree. I haven't written any paper before. I don't know where to start. Will someone please guide me? In addition to that I haven't selected any topics so I...

Is my code >.> I tried my best trying to solve but could not get the right answer for my program. I would like know what i did wrong. Write code to complete RaiseToPower(). Sample output if userBase is 4 and userExponent is 2 is shown below. Note: This example is for practicing recursion; a...

Homework Statement 12. The Doggone Leash Company offers personalized dog accessories. The dog’s name is printed on items such as leashes and collars. A basic fee is charged for the first 10 letters of the dog’s name, and an additional charge applies to each letter after that. The graph shows...

Homework Statement Homework EquationsThe Attempt at a SolutionMy answers for the disjoint cycles of f,g,h,k are as follows. My question concerns my disjoint cycles for g. Are we allowed to have 3 cycles? I would think "yes" because that just makes sense to me. for f: ( 1 3 8 4 6) (2 5) g: (2...

I don't understand why we can write the elements of the lorentransformation in the form ## {\Lambda}^{\mu}\:_{\nu} = [exp(-\frac{i}{2}{\omega}^{\rho\sigma}M_{\rho\sigma})]^{\mu}\:_{\nu} ## I know that we can write it in the form ## {\Lambda} = exp(t\Theta) ## where ## \Theta ## are elements...

Essentially, my problem is to: design a program that takes the following information: -a persons ID -a houses ID -listing price of house -selling price of house and write the input to a text file, called Sales.txt. Secondly, based on the list and selling price, commission is calculated based...

I am applying to an undergraduate summer school. I should write a CV, but I do not know how should I write it. I would be happy if anyone can help me with the same experience. Thanks.

First of all there are plenty of answers on Google for this commonly searched problem, but none of them gives me the solution I am looking for. What I am looking for is how to write a function which determines whether a parameter number is a perfect-number. Take the code below for example...

A sightseeing boat is chartered by a social club at the rate of $10 per person. The club guarantees the boat company a minimum of 150 people. The boat company agrees to reduce the rate for all passengers by 5 cents a person for each additional person over the 150 minimum. Write and solve an...

Do professors always wish to write recommendation letters for bright students they personally know very well? Is it quite often done to build up a good profile of the professor in the admissions committee of the university the student applies to?

Hi, I've been trying to write a simple binary file in Python 3 and have not yet been able to find a clear answer / solution online. Could you please suggest a simple way to read / write binary files in Python 3? My Code: # Create Binary File def dec_base(k,b=2): """ Default base is 2...

I was wondering if anyone knows a good PhD thesis writing support group, either online or in London? I couldn't find any and I wanted to set up a meet up group... but I'm not sure what we would actually do to support each other... and when I finish in a few months, what then? Also I'm afraid...

Hello friends. I need help to write the function x^3 as a somatory using the Legendre polinomials as base. Something like: f(x)=\sum^{\infty}_{n=0}c_{n}P_{n}(x) Basically is to find the terms c_{n}. But, the problem is that Legendre polinomials does't form a orthonormal base: \langle...

I have what I think is a basic question. Say I have a manifold and a metric. How do I write down the most general curve for some arbitrary parameter? For example in \mathbb{R}^2 with the Euclidean metric, I think I should write \gamma(\lambda) = x(\lambda)\hat{x} + y(\lambda)\hat{y} But what...

How to select a thesis topic in Graduation for physics ? And which forums are the best to study "research papers" in physics? please help

Hello, I am really struggling to write a math formula that I need for my website plugin. A=(Length) B=(Width) C=(Square Inch) A*B=C 0<=C<=16 then C*.84 17<=C<=34 then C*.70 35<=C<=65 then C*.56 66<=C<=99 then C*.42 100<=C<=150 then C*.35 151<=C<=500 then C*.31 I wrote this formula in excel...

I'm looking for assistance in designing an alien race, for lack for a better term. I'd like insights from people familiar with biology etc. Where is the best place to post such a question and follow up questions? Or is such a discussion entirely inappropriate for this forum? Thanks.

Write the equation of the sphere with radius 7 and center on the positive z-axis, if the sphere is tangent to the plane z=0. I know this is an easy problem if i understood the terminology better. The equation of a sphere (x-h)^2 +(y-k)^2 +(z-l)^2 = 49. I know that the plane z is the set...

What's your take on preserving stamina/maximum mental capacity for quant and skipping the essays? I hear physics grad programs don't care at all, some don't even take the scores. Thoughts?

I have been engaged in some laboratory projects during my master study. But only one of them which has been written as a paper, it has been accepted but not yet published. Now I want to write a CV for my PhD application, and wondering what I should write in the research experience section. Will...

Hi I'm a bit confused about some mathematical notation If i write f(x)=(2x^2 + 10)^4 And i define u= 2x^2 +10 u^4 = f(x) Would it then be correct to write f(u)= u^4 Or would i get f(u)= 2(u)^2 +10 = (2(2x^2 +10)+10)^2 Should i define u^4 = f(x) first? Would it then be correct...

ZapperZ submitted a new PF Insights post Writing Your Doctoral Thesis/Desertation Continue reading the Original PF Insights Post.

Here's the problem statement from HackerRank: https://www.hackerrank.com/contests/programaniacs-june-15/challenges/sum-of-squares-1 Since the constraints are small, I tried a DP solution. Code I have written so far: #include <cmath> #include <cstdio> #include <vector> #include <iostream>...

The continuity equations are ##\nabla_a T^{ab} = 0##. In a coordinate basis, we can write out the resulting differential equations as: ##\nabla_a T^{ab} = \partial_a T^{ab} + \Gamma^a{}_{ac}T^{cb} + \Gamma^b{}_{ac}T^{ac}## (modulo possible typos, though I tried to be careful-ish). What do we...