J.C.MacSwell

...and that's why we always have Janus batting fourth!

kWh isn't kW/hour. It is kW (power) for (not per) an hour (time), giving you energy.

Right. It is the position of the pivot/hang points of the pans that is the key. If halfway between them is the pivot point of the cross beam, any equal weights will have no effect on the balance. If it lies below that there will be a restoring force, and if above it will be the opposite and be unstable.

Because the torque from each just cancels the other. The horizontal distance from the pivot always matches, unlike pans fixed to the cross beam. This is assuming the pivot point is centred on the beam, and the pans hang from points equidistant from and aligned with the pivot point (at same height when beam is level).

You simply can't duplicate conditions 100.0 (add zeroes)%. Even the time of year and position of the Moon becomes a factor for some coins (not that I am even hazarding a guess at the edge/stability requirement of the coins) but some things are simply going to be effectively random at the Newtonian level, never mind quantum effects.

Right. Or in the case of the two craft actually being 2 distant parts of the same larger craft, the back better do a little more accelerating to avoid the larger craft being stretched apart. "Avoiding" the dilation in the original frame would be catastrophic.

Not sure exactly what you are describing but his sounds like the equivalency principle. You could use a balance scale without the use of gravity (say, in outer space somewhere) based on that principle and accelerating the scale, if that is what you are wondering. The scale would (generally) be designed to have just one point of stable equilibrium for any given weighted condition, including empty, and will tend to those/that points.

Raccoons are already positioned and ready to take over when Mankind "messes" up...

It really is that simple (determination of coefficient aside) if Raider does in fact want lift. How he uses it, and proper application, can be simple or complicated as is pretty much any formula.

That's the one. Note that the coefficient will depend on the shape, the angle, and Reynold's number and is generally determined experimentally, so as MigL stated empirically. It increases "fairly" linearly with angle until stall is approached for most profiles, though not zero at zero angle except for symmetric shapes.

The air resistance is not a constant. For identical shapes the drag will be proportional to the square of the velocity, assuming the coefficient of drag does not change. If it does you must factor that in. The only point where the velocity will be the same is at the start, when dropped. The lighter object will otherwise accelerate more slowly but reach it's terminal velocity earlier, at a lower velocity.

Running machinery, equipment and tools... Compressed air has it's advantages and disadvantages over alternatives... https://en.wikipedia.org/wiki/Compressed_air It is one of many ways to get dynamic motion...

That would certainly help prove that it is the ratio of the circumference to the diameter of a circle, and maybe Euler et al would finally forgive us. They've been a little ticked off for some time now.

...and of course sound doesn't generally propagate along lines of latitude, the equator and wind and topography effects notwithstanding. Though it could be very close locally, even at the right latitude you would not generally get stationary waves wrt an inertial frame...at least not for long

For cooking something where I want a more even heat I keep a large flat pan on the lower rack. It essentially absorbs and reradiates the heat more evenly. Other than getting the pan up to temperature there is no significant loss in efficiency that I can think of.

I would argue 0 or 100%, but nothing in between,

I agree...though they only agree at that point...they tend toward disagreement as they diverge and back toward agreement as they converge

They would be in the same gravity well but travelling at different speeds. Time would slow more for the twin travelling furthest wrt an inertial frame, which the spinning Earth is not. In the scenario described this could be either travelling furthest, or it could be the same for both. So I would say different possible results even for the simple cases where the tower is on the equator, and the other twin flying West or East at varying speeds for each case.

The one currently facing the Sun...but somehow I think you know that

This isn't one of those don't lift the knife/pencil without backtracking ones is it? That would be to easy. Two identical pieces and a third of equal area.

Not sure what the Michelin Man was doing when his lower body was severed away...but at least he died happy...

There is a compressive tidal force, or set of forces, on an object at right angles to the gravitational force (Newtonian), but it would assist with spaghettification, not pancaking.

Something ahead of or behind you on your path toward the centre would be getting further away, but everything else would be converging with you. I would have to think about how it might appear, but I would expect directional distortions would be apparent.

You could. All you need is a little push in the right direction. Don't worry about getting the information out. We'll send in the directions once you're inside...

There are many paths inside the event horizon...they all lead to the centre, which is possibly a singularity. There is a gradient in the gravitational field, both inside and outside the event horizon. The smaller less massive the black hole the greater is the gradient. The gradient is there because gravity is stronger as you approach the centre.This gives rise to tidal forces. If the gradient is great enough you get "spaghettified"...if you are heading feet first your feet are pulled from your body, which is pulled from your head. If the black hole is massive enough this can take place well inside the event horizon, since though the gravity is strong the gradient can still be tolerable. If the black hole is small enough this can take place outside of the event horizon since though the gravity might not be quite as strong (still very strong) the gradient is stronger there than just inside the event horizon of a more massive black hole. It is all about the gradient. With a good gradient all you need is the sauce, grated cheese, and perhaps some meatballs.