A 2.0 x 10^3 kilogram car collides with a tree and is brought to rest in 0.50 seconds by an average force of 6.0 x 10^4 newtons.
What is the magnitude of the impulse on the car during this
0.50 second interval?

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?