Letter C would be the correct answer
Answer:
B as all the forces cancel out
Explanation:
20-20=0
25-25=0
Answer:
A
Explanation:
Because Rainwater can get acidic because of the carbonic acid that it contains
I believe so..... hmm idk
Atmospheric pressure at sea level is 760 mmHg.
We have been told that at the summit the pressure is only one third the pressure at sea level.
Then the pressure at the mountain top is
![\frac{760}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B760%7D%7B3%7D%20)
mmHg
Air is made of a mixture of gases. the pressure that each gas exerts individually contributes to the total pressure of the system. The pressure that each gas exerts is the partial pressure of that gas which depends on the mole fraction of that gas or percentage composition of the individual gas.
Partial pressure of Oxygen - total pressure x percentage composition
Therefore pO₂ -
![\frac{760 * 0.21}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B760%20%2A%200.21%7D%7B3%7D%20%20)
= 53.2 mmHg
Answer is 53 mmHg