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Questions and Answers
According to the given information, what is the height of the hill?
According to the given information, what is the height of the hill?
- 750 m
- 2.5 km
- 1.25 km (correct)
- 250 m
Suppose a barometer kept in a stationary elevator reads 76 cm. What will be the reading if the elevator starts accelerating up?
Suppose a barometer kept in a stationary elevator reads 76 cm. What will be the reading if the elevator starts accelerating up?
- Zero
- Equal to 76 cm (correct)
- Less than 76 cm
- More than 76 cm
A vessel containing a liquid has a constant horizontal acceleration of 19.6 m/s^2. At what angle does the free surface of the liquid slope with the horizontal?
A vessel containing a liquid has a constant horizontal acceleration of 19.6 m/s^2. At what angle does the free surface of the liquid slope with the horizontal?
- $\sin^{-1}\left(\frac{1}{3}\right)$
- $\tan^{-1}\left(\frac{1}{2}\right)$ (correct)
- $\sin^{-1}\left(\frac{2}{5}\right)$
- $\tan^{-1}(2)$
A liquid X with a density of 3.36 g/cm^3 is poured into a U-tube containing mercury. Another liquid Y is poured into the left arm of the U-tube, with the same upper level as X. What is the density of liquid Y?
A liquid X with a density of 3.36 g/cm^3 is poured into a U-tube containing mercury. Another liquid Y is poured into the left arm of the U-tube, with the same upper level as X. What is the density of liquid Y?
What property of the liquid in the U-tube determines the difference in heights between the two arms?
What property of the liquid in the U-tube determines the difference in heights between the two arms?
Flashcards
Angle of Slope in Accelerating Liquid
Angle of Slope in Accelerating Liquid
The angle at which the free surface of a liquid slopes with the horizontal when the container is accelerating horizontally.
U-tube Liquid Heights
U-tube Liquid Heights
The pressure exerted by a liquid column at its base is directly proportional to the height of the column and the density of the liquid. Since the pressure at the same horizontal level in the U-tube must be equal, the height of the columns will be inversely proportional to the densities.
Liquid Density
Liquid Density
The density of a liquid is a measure of its mass per unit volume.
Acceleration Due to Gravity
Acceleration Due to Gravity
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Liquid Pressure
Liquid Pressure
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