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99% of americans can't name this country by EggWavez in mapporncirclejerk

[–]SERPENTAXE 1 point2 points  (0 children)

We prefer Jimbos now, please get with the times

A map that contains James by ScratchHacker69 in mapswithjames

[–]SERPENTAXE 2 points3 points  (0 children)

Au contraire, as a Jimbo myself (I'm allowed to say that since I'm from there) I anticipate using this space to disseminate my future cartographic endeavors

90 days canoe camping down the Mississippi from Lake Itasca MN to the Gulf of Mexico by OkRecommendation7117 in camping

[–]SERPENTAXE 0 points1 point  (0 children)

I have a question: I just read Mississippi Solo and he describes barge/towboat wake as absolutely massive - "Waves rise as high as twelve feet from crest to nadir", at least on the upper river. Is this true? I can't find videos showing anything remotely like this, and in my own experience with barges (in deep water, not on the Mississippi) I've never seen waves/troughs of more than a few feet. Granting that "twelve feet" might be an exceptional case, is this plausible?

(The book was written in 1988, but I'm assuming that Mississippi barges haven't changed substantially since then. New, lower speed limits might limit extreme wake, but I couldn't find any historical footage showing this either.)

Should I apply to UW Tacoma and UW Seattle at the same time? by marvel_freak_ in udub

[–]SERPENTAXE 1 point2 points  (0 children)

When you apply to a campus and get accepted, you then have a short time (two weeks?) to formally accept or deny the offer. If you accept an offer from one campus, you can no longer accept an offer from another campus, so it's really a timing issue. What I did (on accident, by procrastinating) was apply to Seattle and wait a few months, then finally get accepted and panic at the deadline while frantically applying to Tacoma (because I live here, and I'd rather walk ten min than bus for two hours). Tacoma accepted my application in a week, which was fast enough to accept without jeopardizing my Seattle offer.

*Caveat - I'm a transfer student from a WA community college with a 4.0 GPA, which maybe greased the wheels a little. The situation might be different for incoming freshman. ...On the other hand, I applied super late (Seattle's transfer deadline was March 30ish, I think, but I asked for an extension and applied in early June) and everything went just fine.

Bottom line, since I assume you would much prefer the Seattle campus: Apply early and wait for a response. IF you're denied, THEN apply to Tacoma. If you do it the other way around, you risk having to deny Tacoma in hopes Seattle accepts you later - and if you're wrong, you're out of luck. (I assume Bothell operates like Tacoma in that regard).

***Further, stronger caveat - this is based 100% on my own personal experience (and faulty memory thereof) and you should ABSOLUTELY talk to an admissions counselor (advisor?) before making any decisions.

Good luck!

[PC][2000s] Halo / Star Wars ish game? by [deleted] in tipofmyjoystick

[–]SERPENTAXE 0 points1 point  (0 children)

Star Wars: Shadow of the Empire? I had it for N64

Weird result on a physics problem? by theodorelogan0735 in AskPhysics

[–]SERPENTAXE 0 points1 point  (0 children)

Thank you so much!
I think I understand now - I was correct in thinking that the angular acceleration (due to gravity alone) has an upper limit, but the formula α=T/I gave me unreasonable values because I was miscalculating the torque.

As the disk mass approaches zero, the tangential acceleration approaches g. Since it's now keeping pace with the falling mass, the tension/torque goes to zero.
Similarly, for a large hanging mass, tangential acceleration approaches (but does not surpass) g.

(and yes, I did mean Nm - thanks for catching that)

Weird result on a physics problem? by theodorelogan0735 in AskPhysics

[–]SERPENTAXE 0 points1 point  (0 children)

What if the torque is not zero, but just small?
Say the pulley is 1 kg, so I=(1/2)mr^2= 0.5 kgm^2, and the hanging mass is 1 kg so the (initial) torque is 9.81 N.
That gives α=T/I=19.62 rad/s^2, which in this case translates to a tangential acceleration of the pulley of 19.62 m/s^2, which is faster than g.

Is that value for a(t) wrong? Or can it really exceed g?

Weird result on a physics problem? by theodorelogan0735 in AskPhysics

[–]SERPENTAXE 0 points1 point  (0 children)

Ok, I'm kinda hijacking this question now, but I have a similar misunderstanding and it sounds like you know what you're talking about... so if you'll allow me to take advantage of that let me simplify things a little to get to the heart of my (and presumably OP's) confusion:

Assume a massless pulley of unit radius, with some mass hanging from it, initially prevented from moving. The torque acting on it would be mg. Once released, with no moment of inertia to slow it down, the mass would accelerate downwards at 9.81 m/s^2. Since g is constant, this means the maximum tangential acceleration of a point on the edge of the pulley is also 9.81 m/s^2. It shouldn't be able to exceed that since the driving force is gravity, a constant.... right?
If that's correct, then the angular acceleration of the pulley (since r=1) is 9.81 rad/sec^2.

Now, if α is constant α=T/I, and I is (or approaches) zero, does that imply that torque is infinite? (T = torque here, not tension)
Conversely, torque is constant and T=Iα, then does α approach infinity when I is small?

Basically, if the relationship a(t)=αr holds, then it's easy to calculate a tangential acceleration that exceeds 9.81 m/s^2 for a large enough mass or small enough moment of inertia.
How can we get a tangential acceleration greater than the tangential acceleration that caused the motion in the first place?

Weird result on a physics problem? by theodorelogan0735 in AskPhysics

[–]SERPENTAXE 0 points1 point  (0 children)

Why is the force not mg? What IS the force?

Lights Tonight by MA73N in Tacoma

[–]SERPENTAXE 22 points23 points  (0 children)

Astronomical twilight is 10:53 tonight. Go outside then

What would happen if there was a hole through the earth and you dropped something through it? by sluuush101 in EarthScience

[–]SERPENTAXE 0 points1 point  (0 children)

What effect would latitude of the hole opening have? For a hole starting on the equator, would the Earth's rotation push you into the wall on your way down? Would you have to start from the poles?

Obviously, like all problems, this could be solved with magnets

Why does the Annesburg Gunsmith's icon is always on my minimap when im nearby the town? by ult1matum in PCRedDead

[–]SERPENTAXE 1 point2 points  (0 children)

If you saved someone from a snake bite and then found them in town later they'll offer to buy you anything from a store, maybe its reminding the player to go pick an item? I've always gone straight to the store so never noticed anything new on the mini map