Motion equation of object is how long did it move until it stops? (i think it is projectile motion, i'm not sure.)a) 5 sec b) 0,3 secc) 0,4 secd) 4 sece) 2 sec

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.

The speed of light can be used to measure the

Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.