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Threads by latest replies - Page 9

(15 replies)
No.12978237 ViewReplyOriginalReport
Why does the erf function show up in the solution to this 2nd order differential equation?

(y'')^-1 = y
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(9 replies)
No.12984082 ViewReplyOriginalReport
In my last physics exam I needed the initial position P of the car. At first glance I thought it was pi because it was right where pi would be if you divided the circle like any other, but then I noticed the labeled axises and my common sense kicked in:
"Hey, the x axis is the horizontal axis and the y axis is the vertical axis, they probably want me to rotate the axises so they're in their proper positions then start counting from the x axis, and they labeled them this way to confuse me and I was aware enough to notice it"
Thus I considered the initial position of the car to be pi/2 and I went on to find the movement equations of the car through integration.

Later on, during the exam revision, I noticed I had this problem with a big red cross over it and I asked the professor why, to which he told me: "you considered the initial position of the car as pi/2 when it was pi, the rest of the problem is wrong because of that"
We had a long and exhausting discussion as to why and why not my thought process was correct, which ultimately led us nowhere and left my exam score unchanged.

After making peace that we all simply guess wrong sometimes, I come to you now /sci/, was my thought process correct? was I wrong? was I a victim of a bullshit arbitrary decision to NOT consider the deliberately labeled axises to find the right answer?
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(33 replies)
No.12983130 ViewReplyOriginalReport
how do you rate jews contribution to science throughout the history of mankind?
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(14 replies)
No.12983150 ViewReplyOriginalReport
Does reading really makes you smarter or is just a meme?
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(26 replies)

Khazar Milkers

No.12980647 ViewReplyOriginalReport
Why were they so genetically blessed?
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(20 replies)
No.12981417 ViewReplyOriginalReport
You're so smart huh? A large ice cube is floating in a glass of water. after the ice cube melts, will the water level increase, decrease or stay the same? Assuming evaporation is negligible.
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(16 replies)

What is the number of "slices" in a cube?

No.12981569 ViewReplyOriginalReport
Say a cube has sides of 1 cm in length
Each face of a this cube should have an area of 1 squared cm
But how many of these "areas" is the cube made of? If you were to put these 1 squared cm faces on top of each other, how many would you need to form a cube of volume equal to 1 cubic cm?

If this can't be answered because the "faces" are 2-dimensional and hence have no "depth" to speak of, how can it form a 3-dimensional figure, which has depth? If it does have some depth, what is it?
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(22 replies)
No.12983306 ViewReplyOriginalReport
>Documentary about the human anatomy
>They use blacks as examples

Why the fuck did they do this?
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(5 replies)
No.12982247 ViewReplyOriginalReport
Can we prove that the universe is nondeterministic or is it possible that we just don't understand the laws behind quantum randomness?
(5 replies)