Author Question: Because water is 13.6 times less dense than mercury, an atmospheric pressure of 76 cm (30 in.) of ... (Read 109 times)

KimWrice · **on:** Jul 13, 2018

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 ft)
b. 10 m (33 ft)
c. 15 m (49 ft)
d. 20 m (66 ft)
e. 25 m (82 ft)

Question 2

A pascal (Pa) is the force of ____ acting on a surface area of ____.
a. 1 Newton; 1 square meter
b. 100 Newton; 1 square meter
c. 1 Newton; 1 square foot
d. 1 Newton; 1 square inch
e. 10 Newton; 1 square foot