When two balls collide, energy is transferred into sound and deformation, but momentum remains the same. The mass times velocity of the balls is constant.
The momentum stays the same.
Billiard balls collide quite elastically. Ideally, the total change in momentum is zero.
An earthquake happens.
mountains are formed
a big explosion occors
mountains
Earthquakes and mountain building.
an earthquake
When two continental plates collide they buckle up and fold forming mountains.
a earth quake happens
Conservation of momentum.
Nothing. Momentum is a conserved quantity.