Answer:
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Explanation:
Answer:
1658.01807 cm³
Explanation:
= Initial volume = 640 cm³
= Final volume
= Initial temperature = 20°C
= Final temperature = -20°C
= Initial pressure = 1 atm (sea level)
Final pressure
We have the relation
The final volume is 1658.01807 cm³
4.a)
vi = 72km/h
vf = 18km/h
t = 15s
a = ?
vf = vi + at
(18) = (72) + a(15)
-54 = a(15)
-3.6 m/s^2 = a
b)
a = (vf - vi)/t
(-3.6) = (0 - 72)/t
20s = t
5. I don't see what it's asking specifically, it's just a statement.