The alchemical, medical, and technological traditions were precursors to chemistry. state a contribution that each made to the development of the science of chemistry.

3 hours because it is a decent distance.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )