An object being fired from a cannon is also a collision where momentum must be conserved. As the momentum before the 'collision' is zero, the momentum after the collision is zero. In physics ...

A team of researchers in Switzerland, Germany and the US has observed clear evidence of quantum mechanical interference ...

Rubidium atoms can behave unpredictably during atomic collisions, especially when exposed ... between an atom’s nuclear spin ...

Impulse-momentum can be used to calculate the average ... every action force has an equal and opposite reaction force. In collisions this means that the force of one object on the other is equal ...