Pesar un millón de dólares con tu mente

The video tutorial presents a problem where a physicist must estimate the weight of a million dollars to escape an evil genius. By approximating the dimensions of a dollar bill and using known paper thickness, the physicist calculates the volume and assumes the weight based on water density. The result is a rough estimate of 900 kg or 2000 pounds. The tutorial emphasizes the importance of approximations in physics for efficient problem-solving.

What is the estimated thickness of the Harry Potter books mentioned in the text?

How does the text relate the weight of money to the weight of water?