jordan

First, what equations are you using for SA and V? Let's see, SA should be...1/2lw+3[(1/2)sqrt(h2w2)(l)] And V is...1/3(lwh) Actualy, those are probably wrong, but it was my quick guess at them. Anyway, what are you using for you formulas?

Use SA-40=V and substitute in the formulas for SA and V. Since it doesn't seem to give any other paramiters, you can make up something for all the variables but one and then solve for that last one. That should yeild the correct answer.

Your first one looks like it would boil down to x=earccos(0)-1. There should be an infinite number of solutions since the cos(x)=0 at every point pi/2+npi where n is an integer.

Nice job there 5614. I tried playing with my left hand (I'm right handed) and that didn't seem to make too much of a difference. I did notice that it's the sheep running across the bottom of the screen that are the most difficult to get. The ones on top are the easiest. I don't know why. But after about 5 total games I found that the ones on top I can get in about .05-.1 seconds, the middle ones about .12-.14 seconds and on bottom about .2 seconds. Weird.

On my second try (I didn't really understand what was going on the first time) I got .1496 seconds , but I couldn't figure out how to copy it as an image. .123 .183 .125 .127 .190

Yeah, I forgot about all the fractions and stuff. My initial thoughts were to use complex numbers and graph it with those but then I figured that was propably too complicated so I just stuck to integers. Don't know why I didn't think of fractions. So if we used complex numbers, it would just have an asymptote at y=0, assuming the equation is z=x+iy?

Are you aware that the negative exponents are just the inverses of the corresponding positive exponent (for even x's) and the negative inverse of the corresponding positive exponent (for odd x's)? X=-2 ----- You know that 2^2=4 so -2^-2 is 1/4 X=-3 ----- You know that 3^3=27 so -3^-3 is -1/27

At a quick glance, if I'm not mistaken, that step should be X(10-1)=9X or 9=9. Nothing too profound.

This might be a bit of a strange question, but does anyone know of any cds that consists of drum solos? I'm thinking of a group that came into our school a few days ago and wanted a break so they walked off the stage and let the drummer solo for about 10 minutes. Anyway, he was amazing and it was really fun to watch. I was wondering if there was anyone out there who would make a cd of just drum solos like that.

That's not playing very fair.

Real World Example: You have two billiard balls, one has a mass of 100kg and the other 50kg. You roll the 100kg ball at a speed of 100m/sec. It collides with the 50kg ball. After the collision it is going 50m/sec. What is the speed of the 50kg ball after the collision? You know that p=mv. So for the first ball pi=100kg*100m/sec or 1x104N. You also know that after the collision it is moving 50m/sec. So pf=100kg*50m/sec or 5x103N. The only thing that allows you to solve for the second ball (since the only thing you know is it's mass) is that there are no external forces so momentum is conserved. This tells you that since the initial momentum of the system was 1x104N, the final momentum must also be 1x104N. So far we have the final momentum of the 100kg ball as 5x103N, leaving a difference of 5x103N. So then, back to p=mv. For the 50kg ball in the end, 5x103N=50kg*v. Therefore v=100m/sec. Without the Law Of Conservation of Momentum, there would be no way to calculate the final velocity of the second ball with the given information.

Wow, it makes sense now but Martin pretty much showed me. I wouldn't have come up with it on my own. Very clever though.

What does that mean?

http://www.scienceforums.net/forums/showthread.php?t=3967&page=1&

No. The limit of 1/infinity approaches zero.

Yes, La Campanella. I tried to play that a little while ago, but it was a little too hard. I'm not entirely sure the whole song can be played by one person.

Thanks for the great reply. However, I noticed that the majority of your examples deal with prime numbers. Is that just coincidence or what the majority of the problems are today? And would a proof (or disproof) of the Reimann Hypothesis wrap that up for the most part? I didn't understand this one.

I just use the "new posts" feature.

I was just curious, since I have no idea what the most advanced math stuff is these days (I've never really understood anything higher than a calculus 1), I was wondering what the newest stuff to math is. What kinds of things are they still working on? What are some of the newest fields they've discover/invented? What's actualy left to work on? If I want to be a mathemetician, can I look forward to have anything to work on?

Don't read ahead if you don't want the answer (or at least my guess at it): C because he knows if his hat was the same as B then D would know right away. So his must be the other color. What are the spoiler tags again, I can't remember and the BB thread wont open for me.

Christianity, as the world stands now, is the dominant religion. It has been for some time. You can make the case that the Torah has been around longer and I would have to say that it is probably just as good to read as the Bible. As for the rest, they are either no longer in practice or just don't affect the same range of people. I didn't assume you were making fun of me. But as long as you understand my above point, I think you understand my reasoning for allowing a general religion class in schools.

Sure. I you want to read one book that has influenced more people across a larger portion of the Earth over more years than any other, you'd have to read the Bible. Reading "Zombie Survival Guide" might be fun and nice, but what advantage would it offer me when I have to deal people in everyday life (I run into zombies far less frequently than Christians...I think)?

I just answered your question, not offering any oppinions of my own, but I might as well do so now. I think that making classes teaching the historical facts of all the world's major religion as manditory is a good idea. But I've also held for while now that if you're going to read one book in your life, the Bible would be the best to choose.

Religious Education.

Where exactly is it on that site...it's not too easy for me to read.