资讯

The faster-than-light travel in Star Wars involves some otherworldly acceleration. Here's how to calculate the g-forces of a hyperspace jump.
In this classic physics problem, students often make an incorrect assumption about the tension. Here's how to actually solve this.
It demonstrates the measurements to take to calculate velocity and acceleration. Students could be asked to predict the effect of increasing mass and increasing force on acceleration of an object.
Learn the difference between distance, displacement, speed and velocity, and how to calculate distance, speed and acceleration.
Rapid particle acceleration is possible using a fixed-field alternating-gradient machine—but ‘scaling’ in its design has been necessary to avoid beam blow-up and loss. The demonstration now ...