If we weigh 30 kgf on the earth, how much will you weigh on the moon

it's c. elements are placed in rows based on how may valencies electrons have.

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 : )

it is b that is the answer.