If I walk 30 m north and turn around and walk 10 m to the south, what is the magnitude of my displacement in meters?

Ain is , is 's of ? 0.62 0.79 1.27 1.50

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has