What can you assume has happened if an electron moves to a higher energy level

Describe the function of the endomembrane system? what organelles are involved?

What is a costume plot? why is it important to a film or theater production?

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.