The ping-pong ball cannon: A爆破性的科学探索

当我们将两米半的PVC管内塞入一个乒乓球,两端覆盖上隔热铝箔,抽出98%的空气,在一端放上易拉罐并刺破另一端的铝箔时,会发生什么?准备好了吗?三,二,一。(砰!)哇,那声音真大 - 让我们来看看罐子上的损伤。

Unveiling the Secrets of Free Body Diagrams and Gravitational Acceleration

Have you ever wondered how physicists unravel the complexities of forces and motion? Welcome to Lesson 5, where we delve into the world of free body diagrams and the fascinating phenomenon of gravitational acceleration. Prepare to embark on a journey that will challenge your understanding and expand your knowledge of physics.