a pilot records the atmospheric pressure outside his plane as 63cm of Hg...

Question 588
A
120m
B
138m
C
274m
D
1200m
E
120,000m
Explanation

pressure change for air = pressure change for mercury

hpg = Hpg

h x 0.00136 x g = (75 - 63) x 13.6 x g

h = $$\frac{12 \times 13.6}{0.00136}$$

= 120,000cm

= 1,200m

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