Which of the following best describes all magnets found in nature?
O
They have only one pole.
O
They have two poles.
O
They are made of iron.
O
They are made of nickel.

Anybody wanna ? (picture included? )

What is a good example of instantaneous speed

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)