Tips — 395 discussions

Homework Statement Find x. L1 and L2 are parallel Choices: a)100 b)120 c)140 d)150 e)135 Homework Equations From the image, the angles of the polygon in blue should satisfy: 6θ + 90 + 4θ + 2θ + 90 + x = 540 12θ + x = 360 x = 360 - 12θ The Attempt at a Solution I couldn't figure out how to...

i , I am a nuclear engineering " bachelor "student , I will be spending my summer at a university as a research assistant I know the topic I will be working on . Any tips ? may sound silly even when it comes to dealing with people ? or clothes to wear . thank you

I have applied to SULI the past two summers and have been declined. I believe I am a strong candidate; I have a 3.81 gpa, have done chemistry research in a materials science and computational chem lab, and been published twice as an undergrad. The two labs I applied for are NREL and Argonne for...

Help with the picture posted!

How can we make a search just focusing on forum sites? Is there any discussion search options in search engines? https://www.makeuseof.com/tag/3-forum-search-engines-to-search-40-000-message-boards/...

So in a couple of months from now I will start to intensively learn physics because I want to hopefully join larger competitions such as IPHO. I'm legitimately interested in physics and have won some competitions before but I'm just looking for some tips for studying physics. It would also be...

hey! It's me again. For anyone who has been answering my questions // looking at my posts (thank you), you've probably already been aware that I never touched electricity in high school - the last time I did electricity and magnetism was in grade 11 and I couldn't solve a single circuit...

Hello my name is Jay, I recently joined the forums to increase my exposure to physics while I begin a pathway into Mechanical Engineering. I'm currently in some basic courses that should give me a head start come my freshman year this fall, but I wanted to collect some tips/advice. Anything...

I have a presentation with a 2 minute time limit, but I keep going over, and I'm a bit worried because I have to memorize it and I can barely fit it in just reading it aloud. I would really appreciate any tips to make it a bit faster! Thanks! P.S. also how would I read a quote with ellipses in it?

Homework Statement What mass of iron(3) chloride should be added to 450 ml of 0.132 M CaCl2 to give a solution with final chloride concentration of 0.555M There are a lot of numbers, and I get confused on how to convert it to get mass of iron(3) chloride! Homework Equations M = n/L The...

Good afternoon people. Today I don't want to ask something related to electronics or mathematics, but rather on another subject. In this case is about machining (as well as making my own mechanical pieces). So what's the matter? You may ask. Well let me explain to you. In the last couple of...

I've been working on this passion project for a couple of years now and was wondering if you guys have any tips all I can say right now is.Its lunar capable,going to carry 8-10 crew and 2 landers or cargo,reusable,and easily modifiable for Earth orbit operations.

Exam situations are always situations of stress. It comes with our endeavor to be as good as possible and our fear of failure. Some students handle these situations better than others. But there are some tricks I encountered over the years tutoring young students. I’m sure everybody has...

https://www.inc.com/brian-hart/astrophysicist-neil-degrasse-tyson-explains-the-mo.html a quote from the article:

Hi everyone! I am currently in the process of applying for a masters degree in theoretical physics. I am having troubles on writing the personal statement part since I really need to make it shine (200 applications and 20 places:frown:) . Any definitely do's and dont's I should bear in mind? A...

Dear, I am writing a report of a tool I have developed where there is a chapter with all the formulas included in the tool. I have a formula like the following: P(l,1)=\sum_k PF(k,l) but P(l,1) contains the sum of all the positive PFs, while P(l,2) contains the sum of all the negative PFs. Is...

I'm building a model wind turbine. I'm using thttps://www.vernier.com/products/kidwind/wind-energy/kw-wth3/ as the hub/the base. That's the only kit I'm allowed to use. I'm supposed to decide on the blade size, etc. THE RULES: . Students will will sign up for a time slot and test their own...

Hey all, I was wondering if anyone had any good tips on debugging mcnp geometry? I'm an intermediate user working on better understanding the program. Does anyone have any tips or tricks that go beyond simply reading the manual?

I'm starting my first year of university this September, and I'm trying to pursue an combined honours in mathematics and physics. I'm starting the standard physics course in first year, covering classical mechanics and electromagnetism and some special relativity, but I'm most worried for the...

Hello PF, I am taking classical mechanics this fall and I am horrified. I am just not sure if I have the mathematics background for the class. I am still finishing differential equations (about half way done) and I am almost done with calculus 3. The pre-requisite for the class is DE...

Hello everyone, In this post, i am discussing on how to prepare for an exams or to get good marks in exams. Step 1 :> Preparing to Study (a) Start studying early. Give yourself more than enough time to review the material that was covered in class. You might want to gauge how soon to start...

I'm going to be taking 18 units in the fall. Classes are linear algebra, advanced calculus, statistics, and computer programming (c++). I usually work a lot but this time I've been thinking of talking to work and only working short hours on weekends, maybe 4 hours each for friday, saturday, and...

Hi all, I am going to graduate school for Aerospace Engineering. I am a bit nervous because of the fact the my undergrad was in physics. I was wondering if anyone was in the same boat or a similar one that may have some good advice for me before I begin my next big chapter in my education!

Hi, Does anyone know of any fluid that emits light when current is running through it? Why? To feed to a flower, apply low voltage and make it glow. Florescent light isn't enough and bioluminescence isn't my area of expertise so turning a flower into a LED is going to be my approach. All tips...

I'm just starting my journey into physics. I am looking for good quantum mechanics books or articles if anyone has some ideas be sure to let me know.

We run an asphalt modified on 1/4 to 1/3 mile tracks. We have been thinking about a trap door in front of the spoiler to allow trapped air behind the rear to exit in front of the spoiler. We have also moved the solid rear panel up the 1/2 " from the rear bumper. We are also using a 1/2" square...

Homework Statement Lets say I want to find the LCM of -5π/3 and π/2; Also let's say these points are on the Unit Circle. Homework Equations It's easier to convert to degrees then back to radians but I don't want do that anymore because it's tedious The Attempt at a Solution Thoughts?

Dear Physics Forum advisers, I am very interested in studying the art of algebraic geometry, motivated by its applications in the machine learning and data analytics. I recently came across Grothendieck's EGA/SGA/FGA saga, and I am really interested in reading it as I like how it presents the...

Anyone willing to offer any advice? I have a PhD interview soon and wanted to know what I should ask/do in it? I have a reasonable comprehension of what the project is about - I have some relevant work experience in the area. I would usually wear a suit but I've never seen a lecturer in one so...

I build my own computers. I've built and serviced many for others. There are some things I think are useful. - Always research. Don't automatically do something that someone says. Always research it thoroughly. There are almost always others who have had the same questions and often there are...

Hello all, I'm hoping I can get some advice from the hiring managers out there in the engineering world. My position is a bit unique in that I am nearing my graduation date for a B.S. in Mechanical Engineering, but I also have over fifteen years of experience in facilities maintenance and...

So I am currently planning to major in Mechanical Engineering which is heavily involved with Math. I'm taking Calculus 1 this semester and so far I'm doing just above average on all my test. (All B's and 1 A for my limits exam). So far so good right? Eh, I only excel because I just know how to...

Hello! Im currently teaching a math course on a upper secondary school, where we are doing some linear algebra (it is the last math course before the students continue for university). After a brief introduction I want to show some interesting applications of matrices. Applications which can be...

I feel like my approach to mathematics is strange, sometimes I just think about memorizing something when I see something new. I feel like memorizing something is the fastest way to learn because once you memorize it the logic seems to reveal itself. I'm trying to learn trigonometric...

There's about one week to the Physics GRE. I've worked through all five past exams and corrected mistakes. What would those of you that scored well recommend I do in this last week or so before the exam? Should I retake the five exams timed? Work through the 500 exam questions slowly? Just...

I am planning to read and study a book in math. How do you guys take notes when reading Mathematics books? I don't go to class anymore. I plan to self-study it. Any tips would be helpful! Thanks.

Hey guys! I have an exam tomorrow on back titration. Can i have some useful advice?

General Tips on What to focus on, what to avoid? :woot: 3 Specific questions: Should I keep it in ONE page? I have been helping on a grant which has been approved by NIH, how much details of the project should I include in the resume: the detailed goal of the grant, grant number, etc? Should I...

Hey guys, I have an interview with BCG, https://en.wikipedia.org/wiki/Boston_Consulting_Group, next friday and I'm just wondering if any of you have experience with this company and have any tips? Till now I have been doing cases, reading a caseinterview book and practicing mental math, but I...

Hi all, After a major in physics (European university), a PhD in AMO physics (laser matter interaction) I am in the beginning of my 3rd postdoctoral position. I have been always studying laser interaction (from moderate to strong intensities) with molecules , atoms and (for a while surfaces). I...

I'm an undergraduate (freshman) in physics and mathematics. I'm having a bit of trouble keeping track of all of my coursework. I have an account on Habitica and I have a schedule keeper than I carry with, but I seem to miss a few things here and there. What sorts of things do you guys use to...

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...

I keep finding myself losing focus in the middle of doing even basic maths. I sometimes know exactly how something should be done, but make stupid mistakes doing it because I can't fully concentrate. I used to have an obsession with numbers (as a kid) and was great at mental maths. Now, I'm...

What is the best way to cook a steak ?

Hi everyone, I have finally finished high school and have been accepted into a mathematical university. I'm really excited and also somewhat nervous about this whole thing since It is my dream to one day become a mathematician and I don't want to mess it up. I'm now wondering if you guys have...

Hello everyone, For those of you who are familiar with MATLAB and have worked with it in the past, I would like to hear from you guys about efficient and good ways to learn it from scratch. I would appreciate it if you can also specify websites, books, online courses or whatever it is that you...

I have an interview with a community college physics department for a part time teaching gig. Can anyone provide me with some tips of what to expect. I am going to give a 10 minute presentation on elliptical orbits as well for a sample lecture. I am not so nervous about that bit -- it is the...

Next year, I will study mathematics at university. I think I'm well prepared, I already did some linear algebra (I got some books from my brother who studies physics and the mathematicians and physicists share some courses in the first year) and with effort it seems to work out. But, are there...

Hey everyone, I am a CS major, and part of my curriculum has me taking 2 sequences in various sciences. Initially I wanted to do physics & chemistry. I ended up taking Physics I, but am unable to take Physics II next semester due to scheduling conflicts; thus this summer I am taking the first...

Hi! I have problems with this demonstration Let $z= x+iy , x,y \in \mathbb{R} $ then $|x|, |y| \leq{|z|} \leq{\sqrt[ ]{2}} $ , $max \{ |x|, |y| \} $