If the coal mine was deep (not a drift mine) it would register higher pressure due to the extra weight or air above it.
As you go to a higher altitude, the barometer reading would decrease because atmospheric pressure decreases with increasing altitude. This is due to the lower density of air molecules at higher altitudes.
Density and air pressure will increase, while altitude decreases.
a barometer... and it is invented by torricelli..
If air pressure is getting lower, you would expect to see the mercury in Torricelli's barometer rise. This is because low air pressure allows the mercury in the barometer tube to be pushed up by the weight of the atmosphere.
In an alcohol barometer, the alcohol level would rise to about 13.6 inches at normal atmospheric pressure.
A barometer measures atmospheric pressure, so if there was no barometric pressure, the barometer reading would likely show a value of zero or indicate an error. Atmospheric pressure is necessary for the functioning of a barometer.
Good question.Look at it like this if you had two barometers side by side, one a mercury barometer and the other a barometer that reacted to changes in air pressure using some bellows and a spring.Then, as the pressure changed you marked the second barometer positions and noted on the dial the inches reading from the mercury barometer, the second barometer measurement scale would mimic the real mercury barometer even though it did not actually use any mercury.
A barometer reading would change with a cold front because the density of mercury will change with temperature, so a reading must be adjusted for the temperature of the instrument. For this purpose a mercury thermometer is usually mounted on the instrument. Temperature compensation of an aneroid barometer is accomplished by including a bi-metal element in the mechanical linkages. Aneroid barometers sold for domestic use typically have no compensation.
As you go to a higher altitude, the barometer reading would decrease because atmospheric pressure decreases with increasing altitude. This is due to the lower density of air molecules at higher altitudes.
The most commonly barometer used today would be a Aneroid.
Notes taken in class the day before
A barometer does not measure temperature it measures pressure.
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.
Notes taken in class the day before
notes taken in class the day before
The barometer was rising so we thought it would be a good day for a picnic
notes taken in class the day before