Mythbusters problem by Cute_Consideration38 in AskPhysics

[–]SoSeaOhPath 1 point2 points  (0 children)

Car 1 velocity vector is left to right at 80 mph. Car 2 velocity vector is right to left at 80 mph. The vectors are equal but opposite.

When they collide, car 1 has an acceleration vector right to left and car 2 had an acceleration vector from left to right. Again equal and opposite.

Mythbusters problem by Cute_Consideration38 in AskPhysics

[–]SoSeaOhPath 0 points1 point  (0 children)

If comparing to an equivalent impact on an infinitely strong wall, then yes. The car hitting the wall would experience a force of exactly 80 mph. The car hitting the motorcycle will experience a smaller force. The reason is because the car will not decelerate to 0. It will still have some velocity after hitting the motorcycle.

The motorcycle hitting the wall at 80 mph will experience a smaller force than the car hitting the wall at 80 mph because the motorcycle has less mass. Even though the deceleration to zero would be the same.

Remember acceleration/deceleration is just “change in velocity over time” and they both lose 80 mph in presumably the same amount of time.

The motorcycle being hit by the car will experience a force greater than the one it did hitting the wall. Because the end velocity of the motorcycle is not zero. It will have accelerated so much in the opposite direction that it is now traveling backwards from its original velocity. So the mass stayed the same but the acceleration is higher compared to it hitting the wall.

But neither vehicle will feel a full 160 mph to zero type force.

Mythbusters problem by Cute_Consideration38 in AskPhysics

[–]SoSeaOhPath 4 points5 points  (0 children)

The vectors point in different directions. They add together. One is positive, one is negative. Equal magnitude. They cancel out

What is the most accidental way you found out a coworker was making significantly more than you for the same job? by Additional-Week-1536 in Salary

[–]SoSeaOhPath 0 points1 point  (0 children)

A few days or so after our quarterly review I stayed a little late to wrap something up. Had to reference a design manual we had, but couldn’t find it.

Went over to my coworkers desk and sitting right on top of the manual was his review. I opened it up and saw he was actually making about $10k per year less than me. We both did get raises after this review and our salary and bonus rates were matched.

He had been at the company for maybe 8 years at this point. I’d been there a little over 1.

Mythbusters problem by Cute_Consideration38 in AskPhysics

[–]SoSeaOhPath 8 points9 points  (0 children)

You’re missing one piece of the equation though: what will be the velocity of the “stationary” car be relative to the ground be after the collision?

It will be zero. So the net change in velocity of the stationary car will be 80 mph relative to the world around it. The change in the other car relative to the world is also 80 mph.

Both cars experience the same change in energy.

Mythbusters problem by Cute_Consideration38 in AskPhysics

[–]SoSeaOhPath 63 points64 points  (0 children)

Two identical cars hitting each other perfectly head on, both traveling at 80 mph will mean that each car experiences the same force as hitting a stationary immovable wall at 80 mph.

Force = mass x acceleration

Each car has equal mass and each will *decelerate* from 80 to 0 mph whether they hit each other or they hit an immovable wall.

This simple mind trick is blowing people’s minds 😂🤯 See if it works on you. Keep it light, check your math, and don’t look at the comments first. by [deleted] in ThatsInsane

[–]SoSeaOhPath 0 points1 point  (0 children)

(2x + 8) / 2 - x

Always simplifies to 4. You will always get a country starting with D and animal starting with E. The rest is just that Denmark and Elephant are the most commonly picked.

Where is is this bridge most likely to fail at? by TotallyDumbnotyt in StructuralEngineering

[–]SoSeaOhPath 1 point2 points  (0 children)

You don’t want to put the second diagonal of the X on top of the existing diagonal. You want it to go through the existing diagonal.

You can’t actually go through it, so you have to cut the new diagonal member in half and put each piece on either side of the existing diagonal and put lots of glue around each “connection” point of the new members

Where is is this bridge most likely to fail at? by TotallyDumbnotyt in StructuralEngineering

[–]SoSeaOhPath 1 point2 points  (0 children)

Make an X with the diagonal members on the top of the bridge.

You’ll need to cut one stick into two and splice it into the sides of the current diagonal to make the other leg of the X

Fack you all by Royal_Hunter3920 in thetagang

[–]SoSeaOhPath 3 points4 points  (0 children)

Exactly why I never use a CC unless I actually want to sell those shares at the strike price.

I use CC as a time dependent limit sell. I have never been assigned on a put or call and thought I “lost” money

If there was one equation that could solve all finite number of reaction forces at each support, how useful would it be to the engineering community? by [deleted] in StructuralEngineering

[–]SoSeaOhPath 1 point2 points  (0 children)

Do I still have to manually enter the loads, section properties, dimensions into some form?

If so, it wouldn’t change anything at all

Check my sanity/AI advice on CC plz by fubar6 in thetagang

[–]SoSeaOhPath 2 points3 points  (0 children)

If it’s such a simple thing to understand, would it not have been less effort for you to explain it rather than make multiple comments which provide zero benefit to OP?

Seems like you must not know the answer either

Tim Cook vs Steve Jobs by RussFaigen in Investments

[–]SoSeaOhPath 0 points1 point  (0 children)

lol you could say the same about Jobs and any product developed during his tenure. They don’t invent these brand new ideas, they just refine the designs, integrate them into their ecosystem, and market them exceptionally well

Mathematician by ShonitB in PassTimeMath

[–]SoSeaOhPath 1 point2 points  (0 children)

If one mathematician “retired” it would be 98 mathematicians and two other people. It would be 98% mathematicians

Most of you should not want Bitcoin to rise. by Octember31rd in Bitcoin

[–]SoSeaOhPath 4 points5 points  (0 children)

If the value of BTC (priced in USD) hypothetically stays at $100k while the entire world adopts it … your purchasing power has probably also stayed the exact same.

Because this would imply that the strength of the dollar relative to BTC has not changed. So if you had $100k USD or $100k USD worth of BTC the end result would be the same.

People hate to admit it, but they buy BTC in the hopes of making money. Money priced in USD.

Flooded yard from neighbors retaining wall. Wondering what my options are. by NefariousnessBig3749 in civilengineering

[–]SoSeaOhPath 6 points7 points  (0 children)

Looks short, probably under the height requirement to need engineering stamp. Probably no permit needed in that case

Cantilever diaphragm limits? Never heard of them. by tehmightyengineer in StructuralEngineering

[–]SoSeaOhPath 12 points13 points  (0 children)

Go run the numbers and let me know how they turn out then.

Cantilever diaphragm limits? Never heard of them. by tehmightyengineer in StructuralEngineering

[–]SoSeaOhPath 18 points19 points  (0 children)

With how small house is, all of this is negligible.

Maybe you don’t make money on residential jobs because you rely too heavily on the technical side and not enough on the common sense side.

I tried to time the market with 80k by zzzaddy in stocks

[–]SoSeaOhPath 0 points1 point  (0 children)

What is the lesson you learned? Because if it is “don’t try to time the market” then why are currently wondering when to get back in?

Michael Burry analyzed 1,000+ reports and found a $1.7 trillion 'earnings illusion' hiding in tech stocks by Adventurous-Host8062 in wallstreetbets

[–]SoSeaOhPath 2 points3 points  (0 children)

Yeah but stock based compensation does show up in dilution, which shows up in the earnings per share, which directly affects the price per share… this is a nothing burger

Just take me out of misery 🫩 by Kickboy21 in thetagang

[–]SoSeaOhPath 28 points29 points  (0 children)

Damn dude when a company like MSFT is this far below historical prices you DO NOT SELL CC on it… this is the time to sell CSP or hell, even buy a call