Application Definition and 998 Threads

Hi , How to approach the problem? Thanks

Hello all, I did the classic mistake of overestimating my application and submitting only to some high profile universities (all above 150 on the QS physics [i know no the best indicator but I used it]). I got rejected from nearly all and I can't be hopeful that the rest won't follow similarly...

When Fermi applied to a very competitive Italian university to be an undergrad student, he had to, as part of the application process, submit a paper. The admission panel rarely if ever interviews applicants. But they had to interview Fermi. Why? His paper was suitable as a doctoral...

What to do after PhD Physics application rejection? ====================================================== Thanks for your response to my threads. My son will be graduating in May 2020 with Physics Major & astronomy minor from Maryland . My son applied for PhD program...

I've always had a fascination with infinite products. I like them, I do. To stimulate our ensuing conversation, I here post Knopp's two-way series-to-product (and vice-versa) "doorway" out of his book, Theory and Applications of Infinite Series pg. 226: Maybe that'll break the ice... please...

$10 min = \dfrac{h}{6}$ So $a(t)=v'(t) =\dfrac{\dfrac{(50-30)mi}{h}}{\dfrac{h}{6}} =\dfrac{20 mi}{h}\cdot\dfrac{6}{h}=\dfrac{120 mi}{h^2}$ Hopefully 🕶

How to get h3 = 111.37? According to table a-13, sat temp@1.2MPa = 46.29oC, and T3 is lower than that. So the refrigerant should be totally in liquid state, and heat capacity should be used instead. However, from textbook, no heat capacity is given from table. If graph of A14 is used, at 1.2MPa...

α is the second derivative of angle and w is the first derivative In the free body diagrams the only force on A is the normal force since it is only constrained not to move vertically. Have I drawn the free body diagram and kinetic diagram correctly? By relating the accelerations of the...

if i pick up a bucket i apply torque to the bucket. my shoulder is the fulcrum. is my elbow the point of application of force? just trying to understand the physics?

After doing what the instruction did, I noticed that the card stuck to the spool, and generated the hypothesis that it was the same effect as when putting two papers together and blowing through them, the lower pressure of the faster speed of the wind makes the higher pressure outside move the...

I am trying to get more confidence on the direction of current using Amperes law, the problem statement is Loop1: My first task was to assign the direction of current. If I wrap around the my right hand fingers in the direction of integration the thumb is pointing up hence Positive Y direction...

Hello Forumgoers, I know there are probably a million 'what are my chances?' posts on here, so I apologize if I'm missing an obvious source, I'm new to the forum. I am applying to grad schools, and understand that I have no chance at top schools, but I was wondering if anyone could name safety...

How do I prove that: If X and Y are two compact Hausdorff spaces and f : X × Y → R is a continuous function, then f is approximable by ∑ fi gi , wheret  f1, ...,  fn  in X and g1, ..., gn in Y are continuous functions. As far as I read I need to use the Stone-Weierstarss Theorem to prove...

Hello guys, I'm a physics graduate student and recently I've questioned myself about convection when reading about heat transmission processes. At least throughout my life, whenever I heard someone talk about convection, there were examples related to air and water convection currents, however...

If so which? If not when is it expected to do so? By concrete application I mean as being employed for curing diseases, or for some other practical purpose that goes beyond the foundational research.

Thought following might be of interest - application of Ptolemy's Theorem from "De Revolutionibus Orbium Coelestium: Liber Primus".

According to me the answer should be 5.I don't have the answer.I thought that 2 molecules will be used in anhydride,1 molecule in alcohol,2 molecule in cyclic ether.Can somebody tell the answer.

I know that Jones reagent is a weak oxidant and can reduce primary and secondary alcohols and benzyl alcohol is primary,but then i remembered some exceptions,like fehling solution can not reduce aromatic compounds.So according to me Jones reagent can not reduce benzyl alcohol.Please tell me the...

what is the practical application of engineering mechanics dynamics in civil engineering when civil engineers work on static analysis?

Hello As the angle of attack of an airfoil changes, the lift force ##L## changes both in magnitude and position (not in direction, always upward). The force location is a point called the center of pressure ##x_{cp}##. It is possible to transfer the force to any another different point along...

I am reading D. J. H. Garling's book: "A Course in Mathematical Analysis: Volume I: Foundations and Elementary Real Analysis ... ... I am focused on Chapter 3: Convergent Sequences I need some help to fully understand some remarks by Garling made after the proof of Theorem 3.1.1...

I am reading D. J. H. Garling's book: "A Course in Mathematical Analysis: Volume I: Foundations and Elementary Real Analysis ... ... I am focused on Chapter 3: Convergent Sequences I need some help to fully understand the proof of Theorem 3.1.1 ...Garling's statement and proof of...

I am attempting to write a software app based on a research paper: "Predicting Ambulance Demand: a Spatio-Temporal Kernel Approach" by Zhou and Matteson . Here is a link to the paper https://arxiv.org/pdf/1507.00364.pdf . I have questions on how to go about implementing the equations. In...

In the quantum mechanics of covalent bonding, there are two competing theories: https://en.wikipedia.org/wiki/Covalent_bond#Comparison_of_VB_and_MO_theories Both are complementary, but they don't overlap fully, they still leave some gaps.What I want to ask is, can all the literature of the...

Hi everyone, as far as I have searched even we can obtain optimal lambda value to transform data to normal distributed with constant variance in box cox transformation method we may have not proper normal distributed data points. In short at the end we have just closer form of normal...

Hello everybody. I am currently on my last year of Computational Physics education. More and more I am interested in Machine Learning and Neural Network. Time has come for me to choose diploma work thesis, so I am searching for interesting ideas where I can merge my interest in neural networks...

Here is the problem in Morin. In this problem he takes the person on carousel as origin. Accordingly,when he begins to apply Newton's Law of motion on himself,by the equation of pseudo force,since he is motionless in his own frame,his own acceleration is 0. Further in his own frame he has 0...

<Moderator's note: Moved from a technical forum and thus no template.> > The tank (hemisphere) is full of water. Using the fact that the weight of water is 62.4 lb/ft3, find the work required to pump the water out of the outlet. The radius of the hemisphere is 10. ##V =\pi x^2 h## using the...

Hello everyone, I am trying to build a 2-axis camera gimbal, which will control yaw and pitch. I have bought sensorless BLDC motors (GB280870KV) which I drive using SPWM. For knowing the camera orientation, I am using IMU sensors (accelerometer, gyroscope, and magnetometer) integrated on the...

I Know this is prob the wrong site to post this but... Hello, I am a student at a low-ranked college in New York State actively pursuing a bachelors (BA) in Math in my junior year. I have a 3.7 GPA overall and a 3.73 in Math. I am looking to apply to PHD programs next year in Statistics or in...

Homework Statement First problem: The speedometer in a car is driven by a cable connected to the shaft that turns the car's wheels. Will speedometer readings be more or less than actual speed when the car's whells are replaced with smaller ones? Second problem: Keeping in mind the concpet from...

Show that the maximum range of a projectile launched with Vi from Yi=0 is 45 degrees. (HINT: sin20 = 2sinθcosθ)

Hi! I am a computer science student and I want to program an application to improve my programming skills. I am interested in physics and have taken 3 physics courses at University, and would like to look deeper into a specific area during this project. It can be an extensive project, as I have...

So here’s the deal. I recently discovered about a semester I “took” nearly 10 years ago. I forgot that I even enrolled for classes because I decided college wasn’t for me at the time (I was just out of high school) and it was my first semester. I wasn’t aware of “officially dropping” your...

Hi! I wonder if anyone knows of any good (preferably free) diary desktop application on Windows 7 with several options like password protection. Thanks in advance

In a 100 meter race, Maggie and Judy cross the finish line in a dead heat, both taking 10.2 seconds. Accelerating uniformly Maggie took 2.00 seconds and Judy 3.00 seconds to attain maximum speed, which they maintained for the rest of the race. a)What was the acceleration of each sprinter...

Chart: https://periodicity.io/ Kadin Zhang's code on github: https://periodicity.io/ edit: https://github.com/kadinzhang/Periodicity The app is very useful for beginning chemistry students, IMO, but is even better for learning the vue.js toolset for web development. Code example itself is...

Hey this Quadratic application question is giving me trouble. A jet flew from Tokyo to Bangkok, a distance of 4800km. On the return trip, the speed was decreased by 200km/h. If the difference in the times of the flights was 2 hours, what was the jets speed from Bangkok to Tokyo? Just need the...

Hi, I'm a junior at a Ivy League (H/Y/P/C - going to remain anonymous for privacy reasons) and I wanted your honest opinion on what my chances are for graduate school in computational astrophysics and where I should look for the best chances. GPA: 3.5/4 (working to raise this, had a bad...

Hello! I'm trying to simulate a connection between two 2-port devices via waveguide but calculated results do not agree with those, calculated in simulation software. All calculations are in the notebooks. I took a two-port device and compared its S11 characteristic calculated using equivalent...

So I posted yesterday about appropriate pumps for pumping water out of a ballast tank in a manned submersibles at a depth of 1000m. I decided to switch to an axial piston pump. I got that the require pump head is approx. 410 m and the required power input provided by the pump is approx. 18 000W...

Hi all! I'm currently a 4th year student in Combined Physics and CPCS in a top 3 university in Canada and trying to apply for grad school in top schools in US. I did very well in my undergrad, got a fellowship to work at a National Lab from which I got 2 publications in PRC (but is n-th author...

Hello! I just completed my honors from Bangladesh with a 2.90 gpa in Physics. I want to get a masters and if possible a PhD as well in Biomedical physics. Would it be possible for me to get accepted in any university in US with full funding if I manage to get a high GRE and TOEFL score?

Homework Statement The points of interest are at point A and B, I want to calculate the pressures at that point. I am working in gage pressure so we can ignore atmospheric pressure. Homework Equations P = pgh P = sg x specific weight of water x height The Attempt at a Solution Attempting a...

I am the second year Master student and I'm planning to apply for PhD this fall. My goal are top schools in the USA and my chances l seem to be pretty good overall (6 published articles, 4 of which are in decent international physics journals like PRB/APL; excellent pGRE and GRE scores, four+...

why electric field intensity at a point of a non conducting sheet is independent of r?

Homework Statement two discs of radii r and 2r are pressed against each other. Initially disc with radius r is rotating with angular velocity w and other disc was stationary. Both discs are hinged at their respective centers and free to rotate about them Moment of inertia of 1st disc is I and...

Hi, I want to calculate the amount of liquid nitrogen (at boiling temp.) needed to build a pressure of 10.1 bar in a vessel of volume 66 m3. The liquid will be poured slowly into the vessel, boil off and fill the volume with gas at the specified pressure. I make the assumption that the process...

Hi everyone. I am looking for some advice on how to go about writing grad school applications next year. My freshman year (Fall 2011) I developed a brain disorder that, while untreated, dramatically reduced my cognitive ability. I took two years off of school starting in 2013 came back in 2015...

Hello family, :smile: I am applying to MIT this year for fall of 2019 in dept of Aero And Astro I am seeking for some advice, that if there is any space for adding KSP missions(Obviously successful ones) in my college application and also some of Astrodynamics and Astrophysics I know... My Mini...