A spring toy jumps up from the floor and comes back down to the floor. Its initial speed is 12 m/s. What is the velocity at the top of the trajectory?
Report your answer to the nearest whole integer
m/s

“when two plates carrying continents collide, the continental crust buckles and rocks pile up, creating towering mountain ranges. when an ocean plate collides with another ocean plate or with a plate carrying continents, one plate will bend and slide under the other. this process is called subduction. “ i found this on google i hope it

Independent variable is something that is changed in a experiment. 

The particles of the gas inside the ball heats up, bouncing off each other and spreading farther apart.hope my answer has you : )

Iwould say earthquakes.