Calculating Altitude Using Barometer and Thermometer Readings
2010年11月5日 · Using the equation p = ρgh, he can find the height of the column of mercury in the barometer. To estimate the altitude of the scientist relative to sea level, the density of air …
Vacuum pump operating at high altitude - Physics Forums
2022年4月15日 · It is leakfree cause its very small and very simple and I think I would find a leak very quickly. its just the pump, the hose and the vacuum chamber attached to it. the vacuum …
Conceptual question, fluid pressure in a barometer - Physics Forums
2015年12月31日 · A barometer can be used to predict weather by measuring changes in atmospheric pressure. A sudden drop in pressure usually indicates an approaching storm, …
Mercury Barometer: Does Temperature Affect Height? - Physics …
2005年10月28日 · This relationship is not linear and the height increases at a faster rate as temperature increases. The standard temperature range for this effect is between 0°C and …
Why does air pressure decrease with altitude? - Physics Forums
2013年2月1日 · At ground level, the air pressure measured with a barometer is 1000 mb. The barometer is lifted upward by a weather balloon. When the balloon reaches 2 km above the …
Sensitive barometer to show altitude - Physics Forums
2013年6月12日 · FAQ: Sensitive barometer to show altitude How does a sensitive barometer measure altitude? A sensitive barometer measures altitude by using a sealed chamber filled …
Barometer reading in an elevator - Physics Forums
2011年3月7日 · A barometer works by using a sealed glass tube filled with mercury or aneroid cells that expand or contract based on changes in air pressure. The resulting measurement is …
Atmospheric pressure vs elevation understanding problem
2017年4月27日 · Weather services use what is called a standard atmosphere. Basically, at a given altitude, what is the average barometric pressure expected there. They then take the …
High altitude balloon gas expansion - Physics Forums
2009年6月28日 · The problem also involves finding the diameter of a balloon filled with either helium or hydrogen at 30k, 60k, and 90k feet in order to lift a total weight of 500 lbs. The …
Measuring height of building with barometer - Physics Forums
2004年11月21日 · Take the barometer while you are going upstairs the building to measure progressively the height of the building. I mean, if the barometer is [tex] L[/tex] meters long, …