The average velocity is -4.17 m/s
Explanation:
The average velocity of a body is given by:

where
d is the displacement of the body
t is the time elapsed
For the student in this problem, we have:
Initial position: 
Final position: 
So the displacement is

The time elapsed is
t = 60 s
Therefore, the average velocity is

Where the negative sign means the student is moving towards the origin.
Learn more about average speed and velocity:
brainly.com/question/8893949
brainly.com/question/5063905
#LearnwithBrainly
Answer: i think it’s plant and glass
Explanation:
Answer:
D
Explanation:
Because it is impossible for it to show the real depth of the ocean and how deep it is
200g*1 mole/ 18g=11.1 moles There are 11.1 moles of water.