T-minus ten minutes. Before the rocket can fly, mission control must clear three systems: the fuel chemistry, the thrust math, and the telemetry link. You're the launch director. Read the data, solve all four locks, and give the go for launch.
Flight control calls out: “Fuel team needs the mass checked, guidance needs the acceleration, and comms needs the wavelength — all before the window closes.” Every answer is hidden in the evidence: conservation of mass, Newton's Second Law, and waves. Open each piece, decide what it proves, and clear all four locks for launch.
Tap each piece of evidence to read it. (You can reopen them anytime.)
Solve each lock using only the evidence above.
You proved mass is conserved in a sealed reaction, predicted how added mass slows acceleration with a = F ÷ m, ruled out an off-topic fact, and named the wavelength on the telemetry link. That's the disciplined, evidence-first thinking aerospace engineers launch rockets on.