I have no idea and want the answers:
Boat + bowling ball = level stays the same?
Ball roll = the constant gradient is quickest?
Boat + bowling ball = level stays the same?
Ball roll = the constant gradient is quickest?
So for the bowling ball, I replace it with an imaginary marble weighing 1 ton and the answer is now self-evident.
You're really bored at work one day so to entertain yourself you create 1kg of antimatter along with 1kg of matter. Has the mass in the universe increased or stayed the same?
At what point does NVIDIA give you $200bn?
PS: Assuming the boat isn't falling too (it's still in orbit), dropping the ball does nothing. You need to decelerate it (reduce it's orbital speed) for it to fall into the black hole.
(I actually don't know the answer to this)
The more pressing thing is that every thing around the lake is irradiated by the evaporation of the microscopic black hole, which supposedly emits quite a lot of energy, as it falls through the bottom.
Why do you care whether I do or not?
This would show them three things (which they did were not trying to find out, or maybe): 1. I think these questions are stupid. 2. I know that clear requirements and edge-cases are important 3. I’m an asshole and possibly not fun at parties
I got this vibe at AWS, interviewing in 2020. They asked me to design a stock price tracking webapp. I started asking questions and sketching things out and at each question (fairly basic ones, too, like, how many users are we supporting, how frequently do they request updates, and how timely does the data need to be). Seemed reasonable to me but I think my line of questions annoyed them because they said, "just design the app!" Maybe they thought I was stalling? Hmm, ok, but it'll fall over on day 2. I turned down the offer.
Dip for hill roll is faster
The hill decreases speed and increases distance, so it's always slower than the straight line.
What are the effects of the 10 litres of air displaced from within the boat?
If it was a floating bowling ball, the lake water level would stay the same when you toss it from a boat. If it were a sinking one, it would decrease.
Wouldn't that mean the water level will raise a bit because: displaced weight > displaced volume?
Steep then flat one because it gets up to speed fastest.
It's a classic "annoy people who've forgotten that newtonian physics is all integrals" problem. Graph the velocity. Look at area under graph.
1) Imagine pushing the boat down into the lake, displacing water. The level would go up.
2) Imagine the ball instead of being in the boat, is attached under the boat by a rope. Same thing. (Imagine it magically moving through the bottom of the boat - it has no impact on the boat or water level).
3) Imagine you cut the rope. The ball will fall, and the boat will bob up. Water level goes down.
Here's one of my old blog posts where I do the derivation: