<span>when air cools , the temperatures drops, the molecules move slowly taking up less space , the amount of space the air takes ups shrinks , or reduce the air pressure
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3.87 i think but if its not correct then let me know.
Answer:
Explanation:
The two cars are under an uniform linear motion. So, the distance traveled by them is given by:
is the same for both cars when the second one catches up with the first. If we take as reference point the initial position of the second car, we have:
We have 
. Thus, solving for t:
