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What does a decrease in the height of the mercury column usually indicate on a barometer?
low pressure system and stormy weather
Does the height of the mercury column decrease if the diameter of the tube increases in a barometer?
The height of the mercury column is not affected by the diameter of the tube. Here is the proof: Pressure is force per unit area; P =F/A. Force, F = mass (m) x gravity acceleration (g), and mass = density( d) x volume (V) Therefore, P = (d x V x g) / A. Since volume (V) = Area (A) x height (h), then P = (d x A x h x g) / A, which upon cancelling A from numerator and denominator gives P = d x h x g. This shows that diameter of the tube has no effect on height of mercury inside the barometer tube.
How do you reset a mercury Barometer after travel?
To reset a mercury barometer after travel, first ensure the barometer has settled to room temperature. Then, carefully check for any air bubbles in the mercury column and gently tap the barometer to release any trapped air. Finally, adjust the mercury column height to match the current atmospheric pressure by turning the adjustment screw if needed.
How does the pressure at the bottom of a 76 cm column of mercury in a barometer compare with air pressure at the bottom of the atmosphere?
The pressure at the bottom of a 76 cm column of mercury in a barometer would be equal to the atmospheric pressure pushing down on the mercury column. This is because the height of the mercury column in a barometer is directly related to the atmospheric pressure. Thus, the pressure at the bottom of the mercury column would be the same as the air pressure at the bottom of the atmosphere.
Why does the height of the liquid column in a barometer changes as atmospheric pressure changes?
Pressure tendancies measure short term weather. The mercury in a barometer will rise with atmospheric pressure denoting fairer weather and a fall in barometric pressure warns of inclement weather.
A decrease in the height of a column in a mercury barometer means that .'s surface?
When air pressure increases, the mercury in a barometer rises.
What weather will accompany a decrease in the height of the mercury column in a mercury barometer?
the atmospere can not support the greater height column and the column of mercury will drop to the level in which the atmospere can support
A decrease in height of a column in a mercury barometer means that?
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A decrease in the height of a column in a mercury barometer means that .?
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What does a decrease in the height of a column in a mercury barometer mean?
air pressure is decreasing
When air pressure increases the liquid in a mercury barometer would what?
The height of the Mercury column would decrease.
If a mercury barometer were carried up a mountain how would you expect the height of mercury column to change?
As a mercury barometer is taken up a mountain, the height of the mercury column would decrease. This occurs because atmospheric pressure decreases with altitude, leading to less force exerted on the mercury in the barometer. Consequently, the lower atmospheric pressure results in a shorter column of mercury being supported.
What does a decrease in the height of the mercury column usually indicate on a barometer?
low pressure system and stormy weather
If a meteorologist says that the air pressure is getting lower what would you expect to happen to Torricelli's mercury barometer?
The height of the Mercury column would decrease.
If a meteorologist says that the air pressure is getting lower what would you expect to happen to a Torricelli's mercury barometer?
The height of the Mercury column would decrease.
If a meteorologist says that the air pressure is getting lower what would you expect to see to Torricelli's mercury barometer?
The height of the Mercury column would decrease.
If a meteorologist says the air pressure is getting lower what would you expect to see happen to Torricelli's mercury barometer?
The height of the Mercury column would decrease.
