Answer:
The "2" tells us that there are 2 hydrogen atoms in this compound.
Explanation:
If the boat is i travling at 10 m/s and the river is 8.0 m/s the boats speed is 18.0 m/s
The net force = sum of all forces acting on the body
If we take left side as -ve and right side as +ve,
then,
The net force here would be equal to,
10N + (- 3N)
= 7N.
Therefore, a net force of +7N ( + indicates it's moving towards right) is acting on the book of mass 2kg.
The answer is : C ) air,water,and the tank glass.
-Hope this helps.
