estimation

Superheroes do superhero things: They jump, punch stuff, run fast, and sometimes shoot beams out of their eyes. These activities require energy, just like…

But since this uses the total time of flight for the ball, it gives the total distance the ball traveled—to the wall and back. If you take that distance and…

Everyone has the same comment about Batman: He's cool because he's just a normal dude, but he's also a superhero. It’s true, he doesn't have superpowers.…

That might seem like a large volume, but it's not. It's almost half of a liter, so that's half a bottle of soda.Moles and ParticlesThese moles aren’t the…

Since the velocity is defined as the time-rate of change of position, the slope of this plot should give the velocity. That puts this wave speed at 2.85 m/s,…

It’s May 4, so happy Star Wars Day—may the fourth be with you!One of the iconic scenes from Star Wars: Return of the Jedi is the battle on Tatooine at the…

So, here’s the obvious next question: Is kinetic energy also conserved, just like momentum is conserved? The answer is: sometimes. For some collisions that…

I don't think anyone really enjoys filling up the gas tank. It feels like you are just standing around when you could be getting somewhere. If you get gas on…

Neurons in a mouse cortex. Credit: ALol88 via Wikimedia Commons, CC BY 4.0…

This works for any shaped object where V is the volume. Notice that this total force from the air only depends on collisions between the air molecules and…