Quiz 1 - PHYS 131 - 2023 - Term 2

Quiz 1 2022W Results for Duong Nguyen
Score for this quiz: 10 out of 10
Submitted Jan 27 at 11:49a.m.
This attempt took 48 minutes.

pts
Question 1


The density of salt water is = 1030 kg/m3. What is the absolute pressure
at a depth of h = 188 m below the ocean’s surface?

Give your answer in kPa ( = 1000 Pa) to three significant figures.


Correct!
2,000.9084


orrect Answer 1,944 margin of error +/- 5%




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Question 2




Consider water coming out of a garden hose at an angle of 45 degrees.
The water follows the path of an arc, as shown above. Compare the flow
rate, the speed of the water and the cross-sectional area of the stream at
points A and B.

The flow rate is [ Select ]

, The speed is [ Select ]


The cross-sectional area of the water stream is Greater at point B


Answer 1:

Correct! Same at both points


Answer 2:

Correct! Greater at point A


Answer 3:

Correct! Greater at point B




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Question 3




A U-shaped tube is open at the top at both ends. It is filled with water
(light blue) and an unknown liquid (grey) on top of the water on the left
side.