Competition Definition and 115 Threads

TL;DR Summary: How should I study for the F=ma competition as a total newby to competition physics? Hi, next year I'm hoping to do the F=ma physics competition. I wanted to start preparing beforehand so Im not too panicked a day before the competition. Does anybody with experience in this...

Hello! I am a passionate math student wanting advice on how to succeed and go far in a math competition called Math Counts, a mostly word problem-based competition for grades 6-8. Anything helps! Thank you!

Hello everyone, my name is Andii and I am new here. I know this may not be a relatable question to ask, but I hope someone can help me. I have been searching for International/European and/or American astronomy and astrophysical research competitions for the past 5 months or so. I would like to...

The distance covered by the first box is :s1max=v²/2|a|=v²/2μg where a=-μg by second newtons law Similarly S2max=(2v)²/2|a|=4v²/2μg It gas to be s1max+s2max≥S => v²/2a +4v²/2a ≥s => 5v²≥2aS =>v²≥ 2μgS/5=> v≥√(2μgs/5) But this is in the possible solution, am I wrong somewhere? I appreciate your help

Good evening, all! Some quick background: I am working on a robot for a competition that strictly limits entry weights to 3lb. Robot speed & acceleration are highly desirable in this competition, so I have been focusing on ways to maximize my entry's performance. Drive motors for these...

I reason the frictional force on the plate from the ice is doing work first 3 meters (while the motorbike is moving on top) and then an "x" distance after the motorbike has left it. Does anybody have an idea of how one might solve this problem?

Mathologer made a cool video recently about "Tesla's Vortex", or rather a cool method of generating patterns using repeated multiplication and modulus to generate repeating sequences, and then plotting those sequences around a circle. This creates cardiods and other related patterns, a different...

Summary:: What propelling mechanism can get me most consistent shots? Compressed air, spring powered, rubber band powered or any other Hello, I am a high school student participating in a local competition where I have to make a turret. Here are the rules: 1) The projectile has to fall in a...

this is a revision of an older thread that was not well organized and didn't have the full details of my project I am now restarting to get a better response from the community but keep the jokes those were pretty funny. BACKGROUND: 1 My goal is to make some revisions and finish a second idea...

Given positive real numbers $a,\,b,\,c$ and $d$ that satisfy the following inequalities: $a \le 1 \\a+4b \le 17\\a+4b+16c \le273\\a+4b+16c+64d \le4369$ Find the minimum value of $\dfrac{1}{d}+\dfrac{2}{4c+d}+\dfrac{3}{16b+4c+d}+\dfrac{4}{64a+16b+4c+d}$.

I seem to have found a programming competition øen (for 2019),but I cannot find it again. Anyone have a clue where this went?

Is there any particular reason why entropy could not be a measure of or proxy for the level of competition within a system?

Entries can be viewed here. Here is the winner, some bouncing drops with quantum properties:

Hey guys I'm currently working on a school physics project and I need some ideas for it. So basically the goal of the project is to create a vehicle that has to propel itself forward by firing a projectile backwards. The vehicle will be judged based on a scoring system that includes 3 criteria...

This problem was asked in one of the most prestigious exams in India: JEE Advanced, unfortunately it was considered to be ambiguous for the scope of given examination and hence no official answer is issued for it as such.(BONUS marks to all) And so many solutions were posted on Internet which...

Hi, I have watched some videos of Raytheon Mathcounts Competitions and the likes on Youtube recently. I was awe struck by the shear speed that some of the players were able to solve the problems. Some, so fast that I don't believe a human brain could actually properly solve if given to randomly...

Hey guys! So I will be doing the classic egg drop competition at school and was wondering if I could get some help. The materials I have is : 3 sheets of newspaper 5 popsicle sticks 10 wooden skewers 1m of masking tape hot glue I have to drop an egg multiple times (not sure the heights yet...

Homework Statement Homework Equations W = ΔKE W = KEf-KEi The Attempt at a Solution W = .5mvf2 -.5mvi2 I know that final KE for A is 4 times the KE of B because for A ... KEf = 1/2 m (2v)^2 4KE = 1/2 m v ^2 for A I don't know what initial KE for both of them are... so how do i know if that...

I have decided to take part in a science competition for 2018. Link: https://eureka-entry.australianmuseum.net.au/school-science/sleek-geeks-science-eureka-prize-–-secondary I would love some advice of some topics I could make a 3 min presentation about. I am looking for original, interesting...

Just for fun and for community participation, I offer the following riddle. The person who answers first (with complete explanation of how the answer is deduced) wins a free copy of Understanding Our Unseen Reality: Solving Quantum Riddles. Question: Susie and Paula's teacher gives Susie the...

In graduate school for physics, the competition in certain fields(for example High Energy Theory) is very intense. Does anyone know how the situation is in fields of mathematics. So, which areas of mathematics are the most difficult to get into for grad school ? I would be particularly...

Hi As the title suggests, I'm looking for a math book that has some competition-style problems in it, with explanations on how to solve them. I have found numerous of other competitions online but the explanations are very not understandable for me. I am NOT talking about international...

Below are ##6## riddles. Everybody completing a riddle has a chance on winning the book "Dark Matter and the Dinosaurs". Rules: For an answer to count, the complete reasoning must be given, not just the answer. Do not answer a question you already know the answer to. If a question is already...

All the videos I've looked at uses straws, but doesn't wood absorb the impact better? Is there a way to do a hybrid wood/straw setup for maximum absorption? Also, how is my idea? I am going to make a bedding from yarn and make it fairly tight. Then I'm going to connect to 4 popsicle sticks...

Hi, I have a egg drop competition coming up, and I am only able to use: Duct tape Hot Glue Egg 50 Wooden Craft Sticks I have no idea where to begin. The egg will be dropped from 3 meters. Any ideas?

Hello, As per the title - my name is Nick. I am soon to enter my senior year of high school. I come here partly due to recommendation of my teacher. This year, my plan is to participate in my city's annual science and engineering competition, which is connected to the Intel International...

Dear Physics Forum advisers, My name is Phoenix Kim, a rising junior with major in mathematics and an aspiring applied mathematician & algebraist. I wrote this email to seek your recommendation on great books for problem-solving skills (techniques, strategies, etc.) in the mathematical...

SpaceX is hosting an open competition for pod designs to test on the hyperloop 1 mile test-track they're going to build. http://www.spacex.com/hyperloop My question is this: to even begin THINK about designing a pod the way Elon envisions it, what sort of physics do I need to know? Any...

So I've been told recently, that I will be participating in the "British Olympiad in Astronomy and Astrophysics Competition", which I am really excited about. I took the British Physics Olympiad Paper earlier this year, and feel like I could've done better.So because I am quite new to Astronomy...

Homework Statement Hello was wondering what nose cone I should put on my rocket. We need to reach around 800ft, any higher/lower and points are deducted. I don't know whether to go with a rounded cone, parabola I've seen or a pointed cone... Homework EquationsThe Attempt at a Solution I know I...

I run an astronomy club at my school, and I recently discovered that the robotics club gets $2000 from the school every year to build a robot. They then go on to compete in tournaments with that robot, so that justifies the $2000. It would be great if I could get the school to give us $2000 to...

1. in a tire-throwing competition, a man holding a 23.5 kg car tire quickly swings the tire through three full turns and releases it, much like a discus thrower. the tire starts from rest and is then accelerated in a circular path. the orbital radius "r" for the tire's center of mass is 1.10 m...

Hello my name is Aaron! I am a high school senior from northeastern Kentucky designing a pneumatic system of sorts for a science competition and need some help. I will be building a device that converts gravitational potential energy, from a falling mass, into air pressure (or possibly the...

or made less than weekly?

Homework Statement A and B are together with 5 other contestants take part in a competition. The winners are champion, first -runner up and second- runner up. Find the probability that A and B are winner my working is 3/7 x 2/6= 1/7 the ans is correct. but by doing so i assume A is...

Hi, For a perfectly competitive firm, the demand curve is horizontal, and yet how do you have a downward sloping demand curve for the whole industry, assuming you're using horizontal summation? The curve should get flatter if you're summing them, not steeper. Also, is there any marginal...

Hi, English is not my native language. I manage first time a competition on social media, where: 1. people bring a photo and gather like on it. The top 3 likes will go to final, 2. in the final, they play with a small robot as a vacuum cleaner to clean an area of 1mX1.5m which has 1 pin in...

During a physics competition, I came across this question. My work was \begin{align*}\Delta S &= \frac{Q}{T} \\ \Delta S &= \frac{1.25 \times 10^3 \, \mathrm{J}}{348 \, \mathrm{K}} \\ \Delta S &= 3.59 \,\,\mathrm{\left( J/K\right )} \end{align*} but I was stuck in between two answer choices...

This years ASME Student Design Competition is building a UAV to navigate a simple obstacle course and drop a 1 gram payload into a target zone. My question is, is anyone able to decipher their scoring criteria? The problem statement, guidelines, and rules...

Homework Statement http://www.math.ku.edu/mathawareness/2013competition/2013_9-12.pdf I am trying to figure out how to solve problem #5 in the link above. Homework Equations N/AThe Attempt at a Solution The answer they provided does not make sense to me. Can anyone explain? thanks

Each month I will be hosting a question that, if answered correctly, will result in a free book of my choice to be delivered to the winner of the competition. This month's prize: Philosophiae Naturalis Principia Mathematica. The question for this month is the following: Why is it that...

So...I've been set on majoring in physics for a long time, but today my chemistry teacher asked me what my major was going to be. I told her physics. So she's says "Why do you want to study physics!?" Did she say this because she teaches chemistry or what? At the beginning of the semester she...

hi .. ... i am entering a sumobot competition..weight limitation 1kg..dimensions 150mm*150mm...what is more important torque or rpm...say i have 10 rpm motors with 38kg torque ...and ..60 rpm motors with 20 kg torque...which should i go for...due to the size limitation ..i can go only for 2...

Hi, I was put in charge of coming up with a normalization/scaling scheme for a competition in which competitors are scored 0-100 by 6 judges and then the high and the low are dropped before the cumulative score is calculated. In past years we have found scores from judge to judge are not...

This is a question taken from the AMC 2012 12 B exam held in February. I did not answer it during the exam, but now I try to complete all of it at home. I thought I found a solution, but it is not in the proposed choices, and so I am really lost... And the solution is not available for this...

Hi everyone, My high school class is doing a competition where we have to build a rocket out of a 2L pop bottle powered by compressed CO2 and launch it (not directly up but at an angle) we need to... -achieve maximum distance -have minimimal horizontal deviation -protect an egg that the...

https://www.youtube.com/watch?v=ZiestvrumYM Is this possible without assistance? I don't see how he could even get that plane moving. I think maybe he could KEEP it moving, but what do you guys think?

Hello guys, There is something that I should study but is not on my book. I am trying to find other explanations online but I can't. So, it's pretty much to calculate quantity and price for perfect competition and monopolistic competition. Then, consumer surplus for perfect competition...

To start off with, my school has math competitions every semester, which unfortunately i missed the deadline to sign up. Anyways today I was looking at past comp tests questions and on average I was only able to answer 4-6 questions out of 20-23 questions which is saddening to me because I...

I don't win that often. I'm not saying I'm a loser, either, just the kinda guy that keeps coming in 2nd, or 3rd and such. I'm used to it. So my team won the Suffield Shakedown, a pre-season scrimmage of the FIRST Robotics Competition. 30 teams were there, including some heavy New England...