Because water is 13.6 times less dense than mercury, an atmospheric pressure of 76 cm (30 in.)of mercury would be equivalent to 1034 cm (408 in.)of water. Therefore, a water barometer resting on the ground near sea level would have to be read from a ladder over ____ tall.
A)5 m (16 feet)
B)10 m (33 feet)
C)15 m (49 feet)
D)20 m (66 feet)
E)25 m (82 feet)

Question

Quizplus · Accepted Answer

A water barometer would need to be approximately 10 meters (33 feet) tall to measure atmospheric pressure equivalent to 76 cm of mercury, due to the difference in density between water and mercury.

Because Water Is 13