Threads by latest replies - Page 203

(5 replies)

What evidence do you have to support the earth being a spheroid?

No.14376129 ViewReplyOriginalReport
The lies about photos from space and space flight don't count.
(5 replies)
No.14376108 ViewReplyOriginalReport
Rewriting cuz i fucked up
Can I prove that diverges by showing it's a geometric series? Idk if anyone has done this yet but I'd like to know because I think I've found a way to do it, but I'm not a big mathhead so I don't know if someone already prove it's impossible or not.
(20 replies)
No.14369860 ViewReplyOriginalReport
Holy shit this movie was so annoying.
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(60 replies)
No.14374877 ViewReplyLast 50OriginalReport
What scientific facts are illegal to publish in your country?
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(41 replies)
No.14371351 ViewReplyOriginalReport
vaxxxies are responsible for this
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(24 replies)
No.14371859 ViewReplyOriginalReport
Give me a reason why I shouldnt breed with my sister
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(10 replies)

what is the physical interpretation of this?

No.14373502 ViewReplyOriginalReport
feel free to solve the problem too to get some context but I was intrigued by a part of it

This is the problem
>A faucet A takes 2 hours more than a faucet B to fill the same container. First they're opened at the same time for 1.5 hours. After that, faucet B is closed and then faucet A finishes filling the container in 1 hour. How long would each faucet take to fill the tank separately?
Solving this problem (leads to what I want to ask, spaced to let you try it first)

Since A = B + 2 I will call B as x to simplify things

In A hours faucet A fills 100%, so in 1 hour it fills 1/(x + 2)
In B hours faucet B fills 100%, so in 1 hour it fills 1/x

In 1 hour, faucets A and B fill 1/x + 1/(x+2)

In 1.5 hours both faucets fill 3(x+1)/(x(x+2))

In 2.5 hours the entire thing is filled, which gives the equation 3(x+1)/(x(x+2)) + 1/(x + 2) = 100%

Which leads to this equation x^2 - 2x + 3 = 0

My question is

What does the solution x = -1 mean? It solves the quadratic equation but if you substitute it in the other equations it gives nonsensical results (like in 2.5 hours 0 of the container is filled, while in 1 hour the container is filled and emptied simultaneously?). Why does -1 solve the equation but gives the result that faucet A fills the entire thing in 1 hour and faucet B empties the entire container in 1 hour?
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(6 replies)
No.14375663 ViewReplyOriginalReport
Can a photon have so little energy that it can't leave Earth's gravity and will fall back down?
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(5 replies)
No.14376097 ViewReplyOriginalReport
Can I prove that converges by showing it's a geometric series? Idk if anyone has done this yet but I'd like to know because I think I've found a way to do it, but I'm not a big mathhead so I don't know if someone already prove it's impossible or not. Pic unrelated
(12 replies)
No.14372777 ViewReplyOriginalReport
Just found out I might have CO poisoning, school has been rough the last few months and I just thought I was retarded
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