Recent content by KayVee

Yes, that is the same solution our teacher brought. But I just could not figure out, why mine did not work :) I guess it just doesn't work...

Homework Statement The teacher proposed a problem today during a math session. He gave the function : f(x) = x2-6x+5 - and a point P(4,-6). Our mission was to find two tangents for the given point. I thought it was easy, just differentiate the function, and insert the differentiate function...

That's exactly it! I can understand mathematically how a system works, but I can't make sense of it. I came to think about this in our last lab test. I don't think that I learned anything, or what I learned I couldn't make use of in class. But then again, this may very well just be me being...

There is also in my class, a strong connection between mathematics and writing skills. This is an interesting observation, that I've never noticed before.

I guess It's as real life as it gets. I just thought the other students see more what is physically possible, while I see what is mathematically possible in a circuit. I think that was what I'm trying to say.

It's kinda hard to describe my education. I'm studying to be an machine chief (The ones they use on board ships), and It involves a lot of electrical circuits. The far fetched one was to describe my "problem", If i could ever make sense of what I do with reality. Maybe it's not a problem...

I can't connect my mathematics with "reality" I'm in a school where we work a lot with electrical circuits, which include a lot of math. Sometimes the teacher tries to connect the circuits with reality, like giving them a "physical" meaning, like trying to explain how a stove works. When he...

I would ask my self, what I will be doing in the future. If your goal is academia, I guess a PhD is good and mandatory, but if you're just looking for work in your field, you could probably do just as well with a masters, as a PhD.

twofish-quant: I live in a very small country, with a population of 48.000, give or take. I plan to live other places in the world, like the US maybe, and there make use of my astronomy degree, outside of academia. And when I return home (And I probably will), a school teacher is pretty much the...

Since I was a little kid I've always found the outer space to be fascinating. I'm currently studying to become a Maritime chief engineer. It includes a lot of calculating electrical circuits, mathematics and physics (We call them level C, B and A - A being highest) at college level, and some...

Thanks union68, that worked just fine :smile:

Homework Statement I'm having troubles calculating a function, because one of the given data is: f'(2)=1 The other two are f(0)=3.5 and f(5)=6. If three "normal" coordinates are given, i.e (0 ; 3,5) (5 ; 6) and the last one was (2 ; 1), there would be no problem. But how can I...

I often wonder about what type of people study math and physics. I am currently in a Maritime school, studying to be machine chief. It's sort of difficult to explain the education. We have Maths on A level, physics on B, chemistry C and a bunch of electrical courses, which is the hardest of them...

Sorry tiny-tim, for the late reply. But I cracked the case :D I found the total ampere for the second diagram, and then just setting the information I had in: U=I*R. I knew that the total resistance in the serial diagram var 146,67 Ohm. There is even a simpler way to find the res. for each...

I see that I need to put up my own work/study on the circuit, but now I see that I was going no where :P So, the power for the parallel is: P = W / t = 2112kJ / 1200s = 1,76 kW. Then the (sum of the?) parallel resistors: R = V~2 / P = 220~2 / 1,75 kW = 27500 kOhm. Can I then say that...