What does "cells come from other cells" mean? Cells can be created out of thin air
Cells are only created by other cells
When cells move they need another cell to go with it
O Animal cells come from plant cells

Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j

What is the number of atoms in 3.54 mol s

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here