Arock falls (vi=0) from the top of a 128 m cliff to the ground below.
how long does it take for the rock to fall?

Most energy in an ecosystem comes originally from_

Awalk up the phase change graph worksheet

Asap and show ! a 14 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.