A U-Tube Is Open to the Atmosphere at Both Ends

question 54

Multiple Choice

A U-tube is open to the atmosphere at both ends. Water is poured into the tube until the water rises part-way along the straight sides, and then some oil with a density of 920 kg/m³ is poured into one end. This causes the water surface on that side of the tube to go down by 5.50 mm and the surface on the other side to go up by the same amount. How much higher is the top surface of the oil on that side of the tube compared with the surface of the water on the other side of the tube?

• A) 0.96 mm
• B) 1.2 mm
• C) 0.44 mm
• D) 1.2 cm
• E) 1.1 cm

---

Definitions:

Anonymity

The state of being anonymous, where an individual's identity is unknown.

Groupthink

A phenomenon that occurs within a group of people, in which the desire for harmony or conformity in the group results in an irrational or dysfunctional decision-making outcome.

Space Shuttle Challenger

A NASA space shuttle that tragically broke apart shortly after its launch in 1986, leading to the deaths of all seven crew members and prompting major changes in the space agency's operations.

NASA

The United States government agency responsible for the nation's civilian space program and for aeronautics and aerospace research.