An ore cart of mass 1200 kg is rolling at a speed of 10.8 m/s across a flat surface. A crane dunks 496 kg of ore into the cart directly above it. How fast does the cart move after being loaded with ore? Assume that frictional forces with the flat surface are negligible.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

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)

The mantle is made up of which structural zones?