Question

The average atmospheric pressure at sea level is 760 mmHg. If the relative density of
Mercury is 13.6, then the air pressure can support
____ m of vertical length of a
water column at sea level.
A) 10.336
B) 1,01,396
C) 10,336
D) 0.76...


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Answer 1

Explanation:

The average air pressure at sea level is equivalent to the pressure produced by a column of water about 10 meters (or about 76 cm of mercury column).

P=10

5

Nm -²

at sea level

density of mercury is 13600 kgm³

we know P=ρgh

So 10⁵

=13600×9.8×h

h=0.76m=76cm