Please explain to us heretics how 2 scalar quantities (external pressure and internal pressure) combine to create a vector quantity?
https://www.khanacademy.org/science/chemistry/thermodynamics-chemistry/internal-energy-sal/a/pressure-volume-work
Slow learner aintcha Geoff?
Oh dear, this didn't start well for you, isn't going well, and it ain't gonna end well!
Your link goes to the page on Thermodynamics and Work, using the equation work=−PΔV.
But Poppy, pressure, volume and work or all scalar! Which is sad for
Poppa-Fhysics!!TM, but does add some extra heat into the roasted nuts.
So, for the gazillionth time (I know, I'm exaggerating), please do explain, how 2 scalar quantities combine to produce a vector quantity, specifically how external pressure (scalar) and internal pressure (scalar) combine to produce an "unbalanced force" (shall we call that, errr,
thrust - a vector quantity)?
Now,
I know you won't (can't), and
you know you won't (can't), and
everyone else reading this thread knows you won't (can't), but holding your feet to the fire just adds to the fun Poppy!