DJBruce

I am looking to get a program that does something similar to the Latex except for typing papers and lab reports. I have read of a program called Abacus and was wondering if anyone used it and if so how did it work. Or does anyone use a similar program.

An electron has a negative charge because I was arbitrarily given a negative charge. Same for a proton. When being named I believe the just chose a name which has been kept. Also I think electrons and protons attract each other.

I hate to go against the all knowing Wikipedia but in my opinion normally a thought experiment brings a new a idea that can either eventually be proven true and become a theory or can be proven false and die. But I think it is rare that a thought experiment alone becomes a theory.

I like to play lacrosse and currently play for my high school. I love to snowboard and love the huge mountains I have in Michigan/:rolleyes:

It all depends on what the instructor lets you use. I'm only in high school and so am not into anything beyond AP Calculus and Statistics but I know we are only allowed to use a 84 or 83. I personal use a TI-84 Silver and like it. But I would suggest you use the same calculator for homework as on the exams. I know our teacher made use you the class set of 83 and I was not happy. It took me twice as long because some amazing person deleted the programs I needed and the piece wouldn't graph more than one equation at a time.

Well it is a alkaline so you could make a small explosion by putting it in water. I believe lithium is used to make fireworks red. If you can cool it around [math].0004 k[/math] then it would be a super conductor and you could do fun stuff with that. Be careful though lithium along with all the alkaline metals are very dangerous. Inhalation of them can lead to pulmonary edema. Yeah its lithium carbonate is used in antidepressants.

That test is not a very good IQ test it just tests a persons ability to remember same things about the world. Plus I had some right answers but the test marked them wrong. I am sure I spelled them right. Also some of the knowledge was very cultural based like the cricket and rugby questions.

Thank You I noticed what I was doing wrong. When you said: I thought you ment you do: [math] (v \cdot u) [/math] Found the derivative of that then add it to the derivative of: [math] (u \cdot v) [/math]. Which made no sense but now I understand that you find the derivative then multiple it. Thank you for your help and thank you for your tutorial it has been a huge help and as I said before is one of the best tutorials I have seen. I am eagerly awaiting the next instalment.

I have been trying to teach myself calculus in part by reading the tutorial. I have a few questions and was wondering is someone could give me some guidance. Is there a difference when you use the [math]\cdot[/math] or [math] \times[/math]? I understand where you get this: [math]\frac{d}{dx}u \cdot v + \frac{d}{dx}v \cdot u = \frac{d}{dx}(x-2) \cdot (x + 4) + \frac{d}{dx}(x+4) \cdot (x - 2)[/math] But I do not understand how you go from that to: [math]1 \cdot (x + 4) + 1 \cdot (x - 2) = (x + 4) + (x - 2) = 2x + 2[/math] I think I might understand how to do it when I do not use the chunking but I want to learn how to use the chunking method. Here's what think is right. [math] (x-2)(x+4)=x^{2}+2x-8 [/math] [math]\frac{d}{dx}x^{2}=2x [/math] [math]\frac{d}{dx}2x^{1}=1 \times 2x^{0}=1 \times 2=2 [/math] and because [math] -8 [/math] has no variable then it is not part of my derivative [math]\frac{d}{dx}(x-2)(x+4)=2x+2[/math] Thank You any help would be greatly appreciated.

Just remember the motion of most of the particles entropy deals with is random. Plus physics does no strive to give order to the universe but it tries to understand the chaos we live in. I think there where a few errors in your equation. I'm not sure if you new that or not. [math]\Delta G=\Delta H-(T)(\Delta S_{int})[/math] Where [math]\Delta H=\sum H^{0}_{F}(products)-\sum H^{0}_{F}(reactants)[/math] [math]\Delta S=\sum S^{0}(products)-\sum S^{0}(reactants)[/math] and T is measured in Kelvin [math]\Delta G<0[/math] Spontaneous [math]\Delta G=0[/math] Neither reactions happens has equilibrium [math]\Delta G>0[/math] Non spontaneous

Agreed completely. But I'm no geometry expert so if it is rational could someone explain it.

There was just a show on the history channel that touched on this topic. The said that of the coast of Puerto Rico Earths gravity is .3% weaker than normal.

A scientist is someone who studies the world around them in order to acquire a more in depth insight into the workings of the world. I personally feel that a person can memorize as many theories as they want but if they cannot practically apply them then they are not actually the best scientist. A person can reassemble something but that does not mean that they understand what is going on when they assemble the car or how the car works. And the goal of science is to understand the world around us be it the atom or the chemical composition of a cell. So if the person who can assemble the car does not understand the concepts behind the car then I would not call them scientists. Also I think you are confusing the words scientist and inventor. A scientist is someone who seeks to collect knowledge in order to understand the world. An inventor on the other hand is someone who tries to create a device or method that is useful. So in a sense I would call the Wright bothers more inventors rather than scientist because there goal was not so much to understand flight through experiment but to rather to build a motorized flying device capable of carrying humans. I'm not going to lie I hope this was what you where talking about. I struggled to comprehend parts of your posts.

As already said by definition there is only one universe. But there are some people who believe that there are multiple universe a multi-verse to say. Some believe that there are parallel universe where things are reversed from this things in this universe. There's this double slit experiment which proves the existence of other universes I believe.

http://mathforum.org/library/drmath/view/55480.html

Very fun I just had the exact same idea about a year ago.

Friction would eventually slow it to a stop even if it was in a completely perfect vacuum with no gravitational forces acting on it.

I agree with DivideByZero in order to fully understand physics you need to know math. I would get yourself some math books and just start from the begining.

Division is defined as the inverse of multiplication. So if [math]a \cdot b=c[/math] Then [math]\frac{c}{b}=a[/math] Assume [math]b=0[/math] [math]c=0[/math] [math]a=?[/math] So if you say [math]0/0=1[/math] then [math]a=1[/math] But [math]0 \cdot a=0[/math] [math]a\neq1[/math] [math]0 \cdot 3=0[/math] Because 0 times any number is 0 [math]a[/math] can be any number not just one. Also in real life if I have 4 apples and divide them into to 2 equal piles I have 2 piles with 2 apples in each. If I have zero apples and divide them into two equal piles I have to piles with 0 apples in each. If [math]0/0=1[/math] then I would have two piles with 1 apple in one pile and 0 apples in the other.

Our teacher did the Sodium and water reaction. But he used a really really small amount so it did pretty much nothing. But we watched a video where two guys in lab coats through different group one metals into a pound and watched them explode.

For School The Narative of Fredrick Douglas: An American Slave The Crucible Grapes of Wrath My Antonia Just For Fun The Calculus Wars: Newton, Leibniz, and the greatest mathimatical clash of all time The Music of Prime Numbers A Breif History of Time

I like Physics Demystified instead of Physics for Dummies.

Yes I understand the 9.8 is incorrect but I do not think it effects the answer becuse when gravity changes on the way down it will change equally as much when you are attempting to escape gravity (the second half of your fall) so you would go just as far.

Although not the most accurate I found it vary intresting. Plus its probably the cheapest and easiest way to calculate the speed of light. Plus I would have to agree that the error was probably a error in calculations.

I do apologize but I was checking my math and noticed a few errors. I have correct my mistakes. But Kyrisch you are saying that the 81 meter difference is not error but instead will be what causes you to yo yo back and forth until you reach the center of the Earth. My question is why would this happen. Even if gravity changes as you approach the centre of the Earth gravity would be pulling you down (accelerating you) just as long as it is pulling you back to the center (decelerating you). Wouldn't it.