Sort Definition and 146 Threads

Hey guys, Last night around 12 midnight, I decided it would be a good idea to climb a nearby antenna next to my house. It is about 143 meters high, and I went all the way to the top. However, I have been googling around, and I think I might have climbed an AM tower antenna, and I am REALLY...

Homework Statement A 4.00-g bullet, traveling horizontally with a velocity of magnitude 400 m/s, is fired into a wooden block with mass 0.800 kg, initially at rest on a level surface. The bullet passes through the block and emerges with its speed reduced to 120 m/s. The block slides a...

Hello PF. I am finishing my third year of a Math and Physics program in Canada. I am getting very anxious about my marks and grad school, and what sorts of schools I should look into applying to / expect to actually get into. I'm asking partially because my friends always seem to be doing...

I was laying in bed and a thought came to me. I am sure this has been explored already so I wanted to know what the answer was as my physics is limited as I study biochemistry. I have a feeling this is related closely to general relativity, but again maybe someone could clear this up for me...

Hi , I'm trying to write down the following function : sort[list_] it needs to sort a list of numbers by checking each two adjacent numbers and swap them if it is needed , but it doesn't work . I need to implement it using Pattern Matching . but I don't understand how can I...

Hi there PF. For this problem I need to take the following code which apparently sorts an array with integers, and sort strings instead. However I DO NOT understand how this works for integers, much less how I could make it work for strings. Could someone please explain it to me? A few tips to...

Homework Statement Okay so the objective here is to express y(t) = cos(t - b) - cos(t) in the form y(t) = Asin(t - c) where A and c are in terms of b.Homework Equations For easy reference, here is a table of identities: http://www.sosmath.com/trig/Trig5/trig5/trig5.html The Attempt at a...

The model is a vampyr 731i electronic I can't find the technical information online Howstuffworks.com only gives the information that the fan motor is electrical What sort of motor is used in the lead retraction device?

With a million soldiers it is possible to have a presence in all the villages in Afghanistan simultaneously and then we can start to build up the infrastructure. We then won't need to fight at all, because the insurgents are not popular amoung the local population, they just exploit the security...

if you have an array with size 1000000, would selection sort be feasible on a everyday laptop computer, or just too large? I imagine it would take (1Million)2/2 loops to complete the sort

What sort of "vector" is this? A contravariant transforms as A^\rho \rightarrow {\Lambda^\rho}_\sigma A^\sigma. A covariant vector A_\mu can be built from A^\rho by A_\mu=\eta_{\mu\rho}A^\rho. Then it transforms according to A_\mu\rightarrow\eta_{\mu\rho}{\Lambda^\rho}_\sigma...

What sort of jobs do I get after graduating in Physics (especially theoretical)? cheers, ALip.

NOTE: THIS IS NOT A HW PROBLEM While calculating the moment of inertia of a cone, I made a mistake and got confused. Although I juggled the numbers and got the right answer, I have a doubt. Say I have to calculate the centroid of a cone z2 = r2. 0 < z < h It is quite obvious that the x and y...

A sort of free energy? Possbilble or not Hi there, Let me start off by saying that I am a College student at Penn College of Technology in Williamsport, PA and I am studying Tool making Technology and Automated Manufacturing, I'd like to refer to myself as THINKER. I've been creating my own...

Urgent help need ! Bubble sort ! hi all, I was asked to built a C programme using bubble sort. here is the Question. TASK A PCB manufacturing company requires a software program to convert a series of a table of drill data to minimise the movement of the drill bed to speed up production...

Homework Statement I need to be able to copy full structs in a temporary array based on a value in that struct (an integer), but I'm not sure exactly how to go about it. I have commented where I need to copy over structs. Also in the other code block, what is the problem here? It doesn't...

hi, I'm not sure if there is a homework forum for programming but I thought I'd post my problem here; I'm supposed to bubble sort a 2d integer array with elements 15 and 2; this is what my code looks like so far: #include <stdio.h> #include <stdlib.h> #include <time.h> #define cards 15 #define...

Homework Statement Ive got another question that I think I might have failed at. A dog weighing 250 kg jumps into an empty boat by the dock at a speed of 5m/s causing the boat to move away form the shore at 1.75m/s. Find the amount of kinetic energy dissipated. Homework Equations...

HCOOH C_4H_10 C_2H_6 CH_2 H_2they all are polar covalent except H_2 which is pure covalent how to sort them??

Homework Statement Evaluate \displaystyle \int_C y^2dx + x^2dy for the path C: the boundary of the region lying between the graphs of \displaystyle y=x and \displaystyle y=\frac{x^2}{4}. Homework Equations The catch is that you can't use Green's Theorem. The Attempt at a Solution...

Sally applies a horizontal force of 520 N with a rope to drag wooden crate across a floor with a constant speed. The rope tied to the crate is pulled at an angle of 53.0°. (a) How much force is exerted by the rope on the crate? Solved and correct. (b) What work is done by Sally if the...

Blackhole is a little bit confusing topic for me.Can anybody tell me,whats the reason and principle behind it that it absorb all sort of matter and radiations and still not releasing out?

I'm looking for a math book that gives all the definitions and explains how every system was derived, starting at addition and subtraction, going up to pre-calculus. A bit of background: I dropped out of school to go to work at an early age (first year of high school). I did a lot of self-study...

how to solve a problem in which linear velocity and angular velocity (in the same direction) are given at the same time in a projectile motion .. how to calculated all the related values like the distance covered .. and consequently what is happening after that ... like ... m=160g diameter=.07m...

[SOLVED] Related Rates - Sort of confused Homework Statement There are two buildings. One 20' high and other 40' high with a 60' distance between them. A person walking between them creates a theta with the buildings (see pic) PICTURE...

I have been asked to code a Bubble Sort using a pointer array and pointer notation as opposed to the square bracket notation...(there should be two uses of square brackets when declaring the arrays). It will not work! :( Basically the data does not sort. I am trying to swap pointer array...

I'm trying to write a Merge Sort program with fortran 90. However, this is what I already could do: program sorting integer :: i,ialloc,error,n,d integer, pointer :: a(:) Print *,'How many numbers would you like to type in?' Read(*,*)d Print*,' Enter the values, separated by...

I'm beginning college winter semester, and am just curious what sort of math classes I would be most appropriate for understanding the mathematics behind quantum theory. I have several years background in cosmology and astronomy, however the subject of the quantum has just been to tantalizing to...

From Agustin Garcia, or at least supervised by him, a 1970 student hymn ====================== Gaudeamus igitur, iuvenes dum sumus. Post rebellem iuventutem, post pacatam senectutem, nos habebit humus. Vbi sunt qui ante nos in mundo fuerunt? Ossa sub terra crepant, miseri nos increpant, quod...

http://www.exoticworldart.com/ufodbase/index.php?page=50

I am working on a project that has to drive 7-segment displays. However, they aren't your average displays and are about 5" long and 3.5" wide. They draw about 250mA of current when fully on. I am looking for some sort of switch/amplifier that can be driven by my BCD-7segment encoder to...

There's construction going on in my university, and I found some fascinating figures written on one of the walls (presumably by the construction workers). It looked like someone had gone to a lot of trouble to prove that 7*13=28. Actually, assuming you can play mix 'n' match with units and tens...

I'm wondering if I have some sort of medical condition, if there's any term for this... or if it's just something that's fairly common... I haven't really talked to anyone about it, just wondering if anyone knew anything about this. When I was about 9 or 10, every month or so, my mind would...

I like maths and physics, but I am not really practical with anything wat do you nice people recommend me doing?

I'm considering a wall, using this equation: Q_P + \rho \cdot C_P \cdot \dot V\left( {T_O - T_R } \right) = U \cdot A\left( {T_R - T_O } \right) Where QP is added effect (an oven), \dot V is air-flow, and the rest should be self-explanatory. I'm just not sure what it tells me. The...

Okay here's the deal I am writing a program so that i could put a counter into a selection sort and count the comparsions and the swaps but when i wrote thw code I get 4 error messages and I don't know why so here is the code if anyone can help it would be nice thank you #include <iostream.h>...

Four ants are situated at each vertex of a unit square. Suddenly, each ant begins to chase its counterclockwise neighbor. All the ants travel at the same speed and eventually,they all meet at the centre of the square. What sort of spiral is traced out by each of the ants? :confused:

No numerical sort in python ? I was really surprised to see that python can't do such an elementary operation! I am trying to do a numerical sort in python on an array. I am using python for windows (DOS). In perl you can simply write sort{$a<=>$b}@a and this will sort it according to the...

You sacrifice mass to create energy (energy is just mass with a velocity), and the faster mass moves (relativity) the more massive the mass gets, is there some sort of significance to that? I hate riddles.

I know that the fastest sort has O(n*log(n)) but I can't figure out what it is! Here's what I have... Use a tree structure: place the first value in the tree. If the next is less than the first, move the first to a child position and place the next in the main position. Otherwise just put...

A photon of frequency \nu collides elastically with an electron at rest. The phton loses half its nergy in the collision an its final path makes a 60 degree angle with the original path. What is \nu ? what sort of photon is this? Well this is obviously the compton effect \lambda_{1} -...

My textbook has the following code as a Quick Sort. It also discusses a randomized quick sort which should have a faster run time, but doesn't show the code for it. What would the code be like? Is only the pivot changed? void quickSortStep(Sequence& S, int leftBound, int rightBound) {...

Ive read that waves of any sort do not transfer mass, but only transfer energy. My question is why do I then float towards shore when at a beach and in the water. :rolleyes:

Michio Kaku explained his vision about dimensions wrapped in Plank dimensions billions of times smaller than proton. Explains about Dali's and Picasso's artistic point of view. With all do respect I wrote a personal letter that I ignore if reached destiny or he ever read it but he is setting the...

Ok i have a rather simple question at hand: 1 gram of Siliver has 5.58x10^21 atoms and each sliver atom has 47 electrons : How many electrons are in 2 grams of sliver... This is easy enough, all i did was take 5.58x10^21 and multiply 2 and then divided that number by 47 and got: 2.37447...

I am preparing a written assignment in norwegian and I could use some ideas to set my thoughts adrift. 1)What is the ideal of today's heroes and what make them heroes? 2)What means progress to you? 3)What sort of hero do we need today?