Answer:
Explanation:
V_{1} = first volume
V_{2} = second volume
T_{1} = first temperature
T_{2} = second temperature
The pitch of the sound of the car will appear to be <span>lower than the pitch of the car next to you</span>
Answer:
<h2>640N/cm^2</h2>
Answer D is correct
Explanation:

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F = ma
We have mass = 0.2kg
and acceleration = 20 m/s^2
So..
F = (0.2)(20)
F = 4 N
<u><em>21% of the atmosphere is Oxygen. </em></u>