Apologies for my lack of knowledge on the equations front, I have burnt by brain out on this and haven't the capacity to learn LaTex right now! So here's a screengrab of it:
So, This is a Matlab coursework and I am struggling to work out how best to approach solving it. What I have so far is...
Hi there. I start my final year of my computer science degree this September and, alongside other modules, will do an independent final year project. I have not had very much CS experience outside my degree so I am a bit unsure what would be feasible for me while not being too trivial such that...
(a) Write down an expression for the velocity field corresponding to uniform
rotation. Find the vorticity corresponding to this flow.
(b) Consider a small perturbation u' to the state of uniform rotation with angular
velocity Ω, which has the form of a plane harmonic wave
u'= A exp i(k·x−ω t) +...
Hello
I am an Integrated PhD Physics student ( Masters+PhD Program ). We have two years of course work then research. I could not study very well in my classical Mechanics course ( goldstein Level ) for some reason. Also, in my EM class the Professor used Griffiths as textbook which I had...
Homework Statement
I want to proof for $$V_{us}V^{*}_{ub}+V_{cs}V^{*}_{cb}+V_{ts}V^{*}_{tb}=0$$ unitarity triangle that left angle is $$\pi-\gamma$$ (see below picture from my lecture notes).
Homework Equations
[/B]
$$\gamma \approx - arg(V_{ub})$$
$$\beta_s \approx arg(V_{ts})+\pi$$...
Homework Statement
A ladder of length 5 m is resting against a SMOOTH wall, its point of contact being just below a first floor window. The bottom of the ladder rests on the ground and the coefficient of friction between the ladder and the ground is 0.28
A person of mass 78 kg climbs the...
I hope this is in the correct section. It applies to math, but not specifically a concept or anything.
Using really good math books compared to many of the standard issue texts provided from many schools has so far really improved my understanding of the material.
However, I've never used them...
The "should I switch from Physics to Engineering?" question has been beaten to death - so I’m sorry for repeating a variation of it. But, I haven't found answers regarding my specific case.
I just got accepted as a transfer student to UCSB for Physics, which I’m pretty happy about.. because 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...
Greetings science enthusiasts -
Longtime lurker, first time poster here. I am in a bit of a weird position academically, and would love some pertinent advice.
Some background:
I am a former Firefighter/Paramedic who got a few AAS degrees (knocked out about 154 credits in 8 quarters), and...
Hello guys,
I'm doing my physics coursework on kepler's third law and I'm finding the minimum mass and semi-major axis of a unknown planet. I have the following data:
Stellar mass Mstar = 1.31 ± 0.05 Msun
Orbital period P = 2.243752 ± 0.00005 days
Radial velocity semi-amplitude: V = 993.0 ±...
Hello,
I am currently a first-year undergraduate. Do most physics grad schools expect to see grad coursework in your schedule by the time you graduate? If you start earlier (e.g. second or third year) and do well, how much does this help an application? Of course I know that this helps an...
Homework Statement
Coursework topic - Chemistry in daily life
Hi recently i am doing a coursework with topic " Chemistry in daily life" i am having trouble with where to start. The main purpose of this thread is asking for some chemistry experiment which involved in daily life.
There are some...
Homework Statement
Topic : Idendification of different types of polymer
Suggested materials : Plastic bottles or materials
Sugeested methods of analysis : Volumetric analysis, Chromatography ,pH, Solvent extration, Distillation
General purpose of project : To inculcate awareness on health and...
Hey all,
I am trying to do a read through on antenna theory (using Constantine's book) and am wondering if there is any online course that might follow the book or serve as a good reference. I have found pretty good success in supplementing a book with an online course in the past (i.e...
Homework Statement
earlier today i was doing some coursework to find the specific heat capacity of an unknown metal by submersing 100g / 0.1kg of the metal in boiling water above 75°C and record the temperature after 30 seconds (θm).
we then had to transfer the the metal from the boiling water...
Hello All,
I am a junior physics undergraduate and I am looking at graduate programs in physics. My field of interest is fusion physics (plasma physics, nuclear fusion and the like). Due to balancing obligations outside of school with my classes, I will be limited in the number of upper level...
Hello!
I thought this would be the best place to discuss and ask physics problems, rather than pay for a tutor.
College in America isn't free after all...
I transferred into my school's physics program with all my core curriculum done, so I only have to take physics and math courses to finish my degree at this point. The physics program at my school is pretty small so pretty much all courses are only offered in either the fall or spring, and there...
I recently got into graduate school for electrical engineering to study solid state electronics. I did my bachelors in Physics and will be graduating this May and start grad school in the Fall 2015. Here is my current cours schedule:
Fall 2015
- Intro to Solid State Electronics (3 cred.)
-...
Homework Statement
How to calculate initial tension or pretension in a system of two parallel springs.
F=5.33213N
K1+K2=53.0597
x=0.095
Individual springs have initial tension of 0.25N so I would expect an answer of 0.5N but I can't get there.
Homework Equations
F=(k1+k2)x
The Attempt at a...
Does anyone use graphing paper for Physics, as well as Math classwork? I like graphing paper, but the kind I use (5x5 from Walmart) doesn't seem to be working out very well. I am having a difficult time reading what I am writing on the paper. I like using graphing paper because it allows me...
Find the spring constant by timing simple harmonic motion. I have done a Hooke's law experiment already and found out about initial tension. What I learned was:
force ≠ spring constant x displacement
force = initial tension + (spring constant x displacement)
So using F=kx would not give an...
Hi all, I am currently an undergraduate in my third year working towards a simultaneous B.S/ M.S and will graduate next spring. I will be applying to Ph.D programs next winter and I am torn between earning my Master's through completing eight classes or through five classes and a Master's...
Homework Statement
Hi there.
For my A2 physics coursework I have been doing an experiment into stokes law, in which I dropped ball bearings of various diameters into a tube filled with a liquid, worked out their terminal velocities and then used Stokes Law to calculate the viscosity of the...
Say you are interviewing for a tenure-track position...you've got a PhD and a postdoc or two under your belt in your field of specialization. Would the specific courses that you took (or did not take) in grad school have a large effect on the hiring decision? Especially if there is a course...
I am struggling with a question in my coursework, and would appreciate some guidance.
The question is:
The component shown in Fig 1 is made from a material with the following properties and is subjected to a compressive force of 5kN.
Material Properties :
Young’s Modulus of Elasticity – 200...
I'm not a physics student and haven't done any physics work since high school. I've since then forgot most of what I knew and although while researching this problem, everything looks familiar. It just doesn't fit together in my head. This isn't a marked piece of the coursework it's just...
Homework Statement
I'm currently doing a coursework project for physics on oblique collisions. I have done two different experiments, both with preliminaries etc.. The first experiment involved suspending a hockey ball (henceforth known as the striking ball) on a bifilar pendulum and releasing...
Hello,
I recently just started a Masters program in Electrical Engineering with a focus on Electromagnetics. I'm also currently working for a large engineering company.
I'm considering purchasing the student version of Matlab so I can work on antenna problems. What packages should I...
Hey all, I am currently a sophomore in Physics with a Math minor.
For this upcoming semester I will be taking 13 credits towards my major/minor: Physics III (mostly waves and optics), Mathematical Methods for Physicists I, Introductory Modern Physics (special relativity and quantum theory...
I'm currently doing a MS in physics. The way I'm progressing, it looks to me that I'd probably have to take 3 years to finish the thesis. This is because I'm having to take extra classes since I didn't have a critical 1 year class (E and M) during undergrad; I didn't major in physics. I'll be...
Helicopters (Coursework) anyone got any recommendations??
I am writing about generally how helicopters work and all physics to do with them...
Forces that Act on a Helicopter...
These are what i have started on... intro into the basic physics
Drag... Air Resistance... Thrust... Torque...
Hi all,
I'm wondering if there are any PhD programs in the US (or abroad, for that matter) that do not have formal coursework requirements. That is, suppose someone took a standard graduate load while in undergrad and was prepared for quals right away: are there any programs that allow you to...
I have this problem and I need help .. please
School problem, it has been my second semester in college and I am doing really bad. I know I am not studying as much as I should. But every time I open the book , I start thinking of something else …. Seriously I tried all my best to concentrate...
Question:
The flat circular disc rotates about a vertical axis through O with a constant angular velocity of 240rpm. Prior to rotation, each of the 0.5kg sliding blocks has the position x=25mm with no force in its attached spring. Each spring has a stiffness of 400N/m, Neglect any friction...
Homework Statement
The flat circular disc rotates about a vertical axis through O with a constant angular velocity of 240rpm. Prior to rotation, each of the 0.5kg sliding blocks has the position x=25mm with no force in its attached spring. Each spring has a stiffness of 400N/m, Neglect any...
Homework Statement
The 125kg concrete block A is released from rest in the position shown and pulls the 200kg log up the theta=30degrees ramp.
Case 1: if the coefficient of kinetic friction between the log and the ramp is Uk=0.5
(a) Find the magnitudes of velocity and acceleration of the...
hi guys
I'm a 2nd year undergrad doing astrophysics, and I was set this piece of coursework a couple of weeks ago, and it's due in a few weeks, so I'm getting started. Problem is, I don't know where to go with it.
We've basically been given a load of data of measured fluxes in the U, B and V...
Coursework help!? Moment of inertia/radius of gyration/velocity question
Homework Statement
An engine is suddenly coupled to a rotating drum by a friction clutch. The moment of inertia of the engine is equivalent to a mass of 40Kg acting with a radius gyration of 112mm. The drum has a...
Homework Statement
Write an equation in words to show relationship between mass concentration, molar concentration and molar mass and give a short explanation.
Homework Equations
I understand that the equation is:
molar mass = Mass concentration/Molar concentration
The Attempt at...
Hey PF,
I'm in a bit of a tight spot with respect to classes next year, and essentially I have to choose between:
1) Taking Statistical mechanics in fall, then abstract algebra I in spring (then representation theory in junior year spring)
2) Taking abstract 1 in fall, representation theory...
Not sure if this is the right section but it seemed the most appropriate.
I'm typing up my chemistry coursework and I'm using Word with the Microsoft Mathematics Add On to make my formula's look better.
Do the left/right margins look right or should I make them larger?
If you have...
Homework Statement
The attached pdf shows the whole problem. I have a deadline of Wednesday for this and am absolutely stuck!
Homework Equations
N/A
The Attempt at a Solution
I have figured out parts a, b, and d. I was wondering whether anyone can help or point me in the right...
Homework Statement
[PLAIN]http://pokit.org/get/d9a4a8542c2acdfedbb1038292f6817b.jpg
Find the coefficients of this function Ck
Homework Equations
The Attempt at a Solution
\begin{align}\Large C_{k}=\frac{1}{T}\cdot \int_{-T/2}^{T/2} f(t)\cdot e^{\frac{-jk2\pi t}{T}}dt=\frac{1}{T}\cdot...
my current plan is to acquire a masters in engineering after getting masters in physics.
the physics degree in my university is purely thesis based so I'm hoping I can get a taste of what it would be like to have an academic career from doing that.
But after that I think I should get some...
I have a few questions about the contrast in difficulty between high school and college-level coursework.
How much more advanced is the "general education" curriculum in college, when compared to high school?
I have a learning disability solely in mathematics. I struggle to fathom the very...
So I already graduated with a BS in Physics, but am considering applying to Astronomy grad schools. I don't have any coursework or research projects in it, but plan to start research with an Astro prof soon. As far as coursework, how necessary is it to have some when applying to Astro grad...
Hello. My name is Nick. I'm new to the forum.
I'm a 26 year old currently enrolled at Kankakee Community College. Ever since I got out of the Marine Corps in June of 2008 and the economy tanked I decided to get into the nursing field thinking it was a safe and reliable job field, though, I've...
Homework Statement
A string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352kg/m2; and a radius of 12.5cm. A mass of 423g is attached to the free end of the string. The mass is allowed to fall under the influence of gravity. As the mass falls the string causes the...