Answer:
1: Luis's train Traveled 100M per Second.
2: The swimmer's average speed was 3 meters per Second.
3: The average speed of the car is 4.58 m a second.
Explanation:
1: Divide 5000 by 50
2: Divide 300 by 100
3: Divide 550 by 120
Answer:
2 Na: 1 O
Explanation:
2 Sodium ion per 1 Oxygen ion
Answer:
protons and neutrons
Explanation:
protons and neutrons are found in the middle
the thing that must change Speed