AlDente
From your source:
{The upper flow is faster and from Bernoulli’s equation the pressure is lower. The difference in pressure across the airfoil produces the lift.} As we have seen in Experiment #1, this part of the theory is correct.
Sure, it might be more complicated and there are other forces at play. Also, top and bottom air molecules may not reach the backside of an airfoil at the exact same time, but that doesn’t diminish the effects of this pressure differential on lifting force.
That lift explanation is innacurate/incomplete. While there may be some equal and opposite forces depending on the angle of attack, the primary reason for lift is due to Bernoulli’s Principle. Airfoils have a rounded upper surface with a longer path for air to take, relative to the underside. This requires air to move at a higher velocity over the top, and since A1 x V1 x P1 = A2 x V2 x P2, pressure over the airfoil decreases. It is this pressure differential that creates lift.
In regards to aircraft, Newton’s third law of motion applies to thrust from a propeller or jet engine.
Sure, but in 2023, someone could already be selling a 2022 as used. That $29k number is going to be skewed by those who sell younger cars. You can still find used cars much cheaper than this.
For that $554 payment, you would need $6648 in additional yearly maintenance costs on an older vehicle to compare. That’s like a new engine or transmission, every year!
Anecdotally, I drive a 32-year-old car that I purchased, coincidentally, for $3200 around 7 years ago. I haven’t spent even close to $6648 in maintenance that entire time (probably not even another $3200).