A rolling disk on a straight line surface. <http://knol.google.com/k/-/-/1xmqm1l0s4ys/h6o9ht/rollingfriction.jpg> The diagram has shown a rolling disk on...
Waking up a lot of people to test something you can do silently by creating additional personal emails or sending to a friend. This is kinda like getting a new...
In a message dated 7/10/2009 03:09:46 Eastern Daylight Time, ... If I knew how to test it without it going to everyone else on the list, I would have done...
Hi, MSNBC news Pundits are saying Al Franken has a degree in Math from Harvard. Some Google searches say he Aced the math part of the SAT. Wikipedia says BA...
For this model, à repulsion and à collision comes on different planes. The vertical plane doesn't have any contacts with the rolling body. Otherwise the...
Quote from forum. "Follow by law of momentum conservation V0x(mx(n-1))=V1x(all mass) If discount one element from the ring then and average speed for (n-1) ...
A few philosophy thinks. Collisions may be classified in two groups. Explicit and implicit. 1. Explicit collisions – happens between objects which conducts...
Let imagine observer and two objects (A and B). One object A with simple movement can move only into one plane. The observer in own frame of reference sees...
I find the recursive sequence p*a_n+q*a_(n+1)+r=s*a_(n+2) interresting for some reason. also the ratio of a_(n+1)/a_n as n --> oo. The day before yesterday, I...
We have introduced to help kids Mathematics Learning name www.math17.com . It is free online interactive and easy to use. Kids are practicing 100 question in...
I've been trying to learn some functional analysis, calculus of finite differences and operator algebra anf this is something I came up with a couple days ago....
Please answer this: a metal box contains 5 P10coins, 20 P5 coins and 50 P1 coins. A machine dispenses 5 coins from the box at random. Find the probability of: ...
... Considering all 75 coins as distinguishable, the total number of ways of choosing five is: C(75,5) = 17259390 The number of ways of choosing n1 of the P1...
Hey guys i have a problem hope you can help me. If there are 8 people say A,B,C,D,E,F,G,H in a line. 1. What is the probability that A and B are one person...
... I'll try the last problem: What's the probability of A&B being together but no other couple? The total number of circular arrangements is 7! (i.e. the list...
I am in the market for a new graphing calculator, but would hate to pay $100 for the TI-83 plus which hasn't changed in years. Would anyone else like to see...
... Where possible, I like to solve a circular problem such as this, as a straight line problem STARTING WITH SOMEONE NOT INVOLVED IN THE RESTRICTIONS [with...
... I propose to solve the problem as follows: Build up the three couples that are not to be together, in a line. Adapt this to a circle later making use of...
... It's been my experience that HP calculators are good whatever you might need. It has a good programming language called RPL. I found that RPN is easier to...
1 Odds of A being next to B = Odds of A being at the head of the line * B @ #2 + Odds of A being at the tail of the line * B @ #7 + Odds of A being in the...
... There was supposed to be one person between A & B so ... Odds of A being at #2 * B @ #4 + ... Odds of A being at #7 * B @ #5 + ... ==> 1/8*1/7 + 1/8*1/7 +...
... Peter, I think you're missing some combinations by requiring each couple to be separated from when it's first added to the group - but they aren't...
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