However, since this force is applied at the feet, far from the center of mass (r > 0), it’s going to produce a torque. In this case, the torque would …
A gymnast can actually perform both of these types of rotation at the same time—that’s what makes the sport so interesting to watch. In physics, we would call this type …
When the elevator is stopped, the two forces are equal and opposite, and the net force is zero. But if you’re accelerating upward, the net force must also be upward. …
“How are matter and energy distributed?” asked Peter Schweitzer, a theoretical physicist at the University of Connecticut. “We don’t know.” Schweitzer has spent most of his career thinking about the …
World Central Kitchen aid workers killed in Gaza by Israeli attack The charity founded by celebrity chef José Andrés, World Central Kitchen, is pausing operations in Gaza after seven aid …
But the solar system contains more than two masses. In fact, it started as a big cloud of dust without any planets and without the sun, and every speck of …
It’s been crazy cold this week, even down where I live in Louisiana, thanks to an outbreak of a polar vortex. This frigid air is bad for all kinds of …
Not only do I get the “shape” of the acceleration curve for the colliding cart, but I also get a maximum acceleration of –6.67 meters per second squared. With that …
There’s some cool stuff going on here. Notice that for the objects with air resistance, they all reach incredibly high velocities as they fall in the upper atmosphere where they …
This also works the other way: Incoming electromagnetic waves will get canceled by the moving charges in the Faraday cage. Your phone won’t know that it’s getting a text message …