There are two planes. one is flying from new york to tokyo at a speed of 800 mph. the other is flying from tokyo to new york at a speed of 700 mph.

when the planes meet, which one will be closer to tokyo?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

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)