I am a high school student in Hong Kong studying Physics. I am having some problems about atmospheric pressure. Imagine there is a cube block with volume 1 m3 and top surface area 1 m2 . The cube block is being placed on the floor and it has mass of 1 kg. What is the normal reaction force F...
Let's assume that the glue does not absorb heat. There can be some improvement in the question such that the "glue is heated up "theory cannot explain the energy loss.
There are two identical ball,ball A with velocity v and ball B is at rest. Ball A hit ball B directly. How will the two balls move after the collision?
In my mind there are three cases:
1. Ball A stops and ball B moves with the velocity v.
2. Two balls move together with same speed v/2.
3. Two...
If it is heat or radiation, then what if the same collision is happening on Earth where sound is produced? By the conservation of momentum and a bit of calculation the energy loss should be the same. However since sound is produced, does it mean that the energy loss in heat or radiation that we...