the polluted urban environment affects the health and quality of life
and C. corrosive, increases the concentration of hydrogen ions when added to water, forms hydrogen gas when it comes in contact with a metal, and formssalt and water when added to a base.
Answer:
masa
Explanation:
porque la masa es la cantidad de materia de un objeto
The altitude or height of the pole vaulter as she crosses the bar is 4.04 m.
<h3>What is the height of the pole vaulter?</h3>
The height of the pole vaulter is determined from the change in kinetic energy which is equal to the potential energy at that height.
- Potential energy = Change in kinetic energy
h = (v - u)²/2g
h = (10 - 1.1)²/2 * 9.8
h = 4.04 m.
In conclusion, the height is determined from the potential energy at that height.
Learn more about potential energy at: brainly.com/question/14427111
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Explanation:
average speed = total distance ÷ total time taken
=30÷2 = 15 km/h
