Answer:
3 in front means the no.of NH4 atoms
Hope it is correct ^_^
Answer:
this isn't physics this is german
50 because that is as fast as a car
Yes, friction eventually slows down objects, unless you are in space. Hope this helps!
Objects have the same velocity only if they are moving at the same speed and in the same direction. Objects moving at different speeds, in different directions, or both have different velocities.
