The final atmospheric pressure is 
Explanation:
Assuming that the temperature of the air does not change, we can use Boyle's law, which states that for a gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume. In formula,

where
p is the gas pressure
V is the volume
The equation can also be rewritten as

where in our problem we have:
is the initial pressure (the atmospheric pressure at sea level)
is the initial volume
is the final pressure
is the final volume
Solving the equation for p2, we find the final pressure:

Learn more about ideal gases:
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Answer:
true two falling inflated balls of different mass lands at the smae time because gravity acts to both in a same way
Answer: Kinetic frictional force = 23.76N
Explanation: Please see the attachments below
It’s going to be both answer A and B but if you can only answer one then it’s going to be B