Changing radius changes every term while the escape energy total remains zero. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Radius 4 closes at zero energy

Circular speed-square 4 doubles to escape speed-square 8. That gives kinetic 4 against potential negative 4, so total is zero.

24=8,44=02\cdot4=8,\quad4\mathbin{-}4=0
Escape closure row r=4The speed-square and energy ledgers close from the same radius source.circularSpeedSquared=4 m^2/s^2escapeSpeedSquared=8 m^2/s^2kineticSpecific=4 J/kgpotentialSpecific=-4 J/kgtotalSpecificEnergy=0 J/kgacceptedBit=1 bit

Radius 2 closes at zero energy

Circular speed-square 8 doubles to escape speed-square 16. That gives kinetic 8 against potential negative 8, so total is zero.

28=16,88=02\cdot8=16,\quad8\mathbin{-}8=0
Escape closure row r=2The speed-square and energy ledgers close from the same radius source.circularSpeedSquared=8 m^2/s^2escapeSpeedSquared=16 m^2/s^2kineticSpecific=8 J/kgpotentialSpecific=-8 J/kgtotalSpecificEnergy=0 J/kgacceptedBit=1 bit

Radius 1 closes at zero energy

Circular speed-square 16 doubles to escape speed-square 32. That gives kinetic 16 against potential negative 16, so total is zero.

216=32,1616=02\cdot16=32,\quad16\mathbin{-}16=0
Escape closure row r=1The speed-square and energy ledgers close from the same radius source.circularSpeedSquared=16 m^2/s^2escapeSpeedSquared=32 m^2/s^2kineticSpecific=16 J/kgpotentialSpecific=-16 J/kgtotalSpecificEnergy=0 J/kgacceptedBit=1 bit

Every radius closes the same zero-energy audit

The radius changes the circular square, escape square, kinetic term, and potential magnitude together. The final total stays exactly zero in all three rows.

rvcvcveveKUϵ44844028168801163216160\begin{array}{c|c|c|c|c|c}r&v_c\cdot v_c&v_e\cdot v_e&K&U&\epsilon\\4&4&8&4&-4&0\\2&8&16&8&-8&0\\1&16&32&16&-16&0\\\end{array}
Escape energy closure ladderThe outer-radius row is displayed with the full escape ledger.circularSpeedSquared=4 m^2/s^2escapeSpeedSquared=8 m^2/s^2kineticSpecific=4 J/kgpotentialSpecific=-4 J/kgtotalSpecificEnergy=0 J/kgacceptedBit=1 bitK + U = 0 at every row