If the plane from question 7 has a mass of 5,275 kg, and all three passengers have the same mass, what is the mass of each passenger?

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)

What sort of waves exhibit the doppler effect?

Where do magnetic lines of force enter earth?