As shown in the figure, a container has a vertical tube, whose inner radius is 32.00 mm, connected to it at its side
An unknown liquid reaches level A in the container and level B in the tube—level A being 5.0 cm higher than level B. The liquid supports a 20.0-cm high column of oil, between levels B and C, whose density is 460 kg/m3. What is the density of the unknown liquid?
A) 1800 kg/m3
B) 2000 kg/m3
C) 1400 kg/m3
D) 1600 kg/m3
E) 1700 kg/m3
Answer: A
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Answer the following statement true (T) or false (F)
When you touch a warm pot on the stove,
A) work flows from your hand to the pot. B) work flows from the pot to your hand. C) thermal energy flows from your hand to the pot. D) thermal energy flows from the pot to your hand. E) electric energy flows from the pot to your hand.
The Aswan High Dam on the Nile River in Egypt is 111 m high. What is the gauge pressure in the water at the foot of the dam? The density of water is 1000 kg/m3
A) 1.11 × 102 Pa B) 1.09 × 106 Pa C) 1.11 × 105 Pa D) 1.09 × 103 Pa E) 1.16 × 106 Pa
A convex lens has focal length f. An object is placed at 2f on the axis. The image formed is located
A) between 2f and infinity. B) at 2f. C) between f and 2f. D) at f.