If the momentum of a body is tripled, its KE will, The radius of curvature of a concave mirror is 30 cm. Tonometer; Pyrometer; Barometer; Thermometer; Answer: Option C. Similar Questions : 1. In SI units, pressure is measured in pascals; one pascal equals one newton per square metre. Atmospheric pressure may be measured by using a number of instruments. The pressure due to the Earths atmosphere can be considered as the result of the weight of the air acting on per unit area of the Earth’s surface. The answer to “The pressure in a natural gas pipeline is measured by the manometer shown in Fig. Atmospheric pressure is measured by a barometer and is expressed in millibars (mbar), in newtons per sq m (N/m 2), or by the height of a column of mercury in mm in a barometer brought to 0° C and normal gravity value (at sea level and 45° latitude). A more convenience instrument sued popularly is an aneroid barometer (it works without a mercury_. When atmospheric pressure drops suddenly, this usually indicates that a storm is on its way. Rising or steady pressure means present conditions will continue. It's measured using an instrument called a barometer. Atmospheric pressure is measured by _____. The pressure is then measured by taking the height of mercury, typically recorded in inches. A rising barometer indicates increasing atmospheric pressure and a falling barometer indicates decreasing atmospheric pressure. What is Atmospheric Pressure? Atmospheric pressure is often measured with a mercury barometer, and a height of approximately 760 mm (30 inches) of mercury is often used to teach, make visible, and illustrate (and measure) atmospheric pressure. Essentially, atmospheric pressure is the force exerted at any given point on the Earth’s surface by the weight of the air above that point. It is measured by an instrument called pressure gauge (such as Bourdon’s pressure gauge). Air temperature differences create wind and cause pressure systems to develop. This weight of air exerts a pressure or atmospheric pressure. It is measured by many varieties of barometer and is expressed in several unit systems. I am shocked by the atrocious quality of the two imbecilic answers provided here. Atmospheric pressure is measured with an instrument called a "barometer", which is why atmospheric pressure is also referred to as barometric pressure. Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth.The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa; 1,013.25 mbar), which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. Is measured in reported in units called millibars, abbreviated as mb. The first was invented in 1643 by one of Galileo's assistants. Essentially, atmospheric pressure is the force exerted at any given point on the Earth’s surface by the weight of the air above that point. In general, a falling barometer means worsening weather. Typically, the quantity used for engineering calculations is 1 atm, or 101 kPa. The gauge measures pressure of the fluid (liquid and gas) flowing through a pipe or duct, boiler etc. These discoveries are used to predict the weather today. Atmospheric pressure is measured by a barometer and expressed in millibars. The greater the millibars, The higher the pressure. The pressure in a natural gas pipeline is measured by the manometer shown in Fig. where rHg = 13.6 g cm-3 is the density of mercury and g = 9.8 m s-2 is the acceleration of gravity. Similarly, as elevation … For continuous recording, a barograph is used. The first devices date from 1644 and the experiments of Evangelista Torricelli, who developed the mercury barometer. It is measured by many varieties of barometer and is expressed in several unit systems. One millibar is equal to the force of one gram on a square centimetre. The most common unit used is the millibar (1 millibar equals 1000 dynes cm -2). Normal atmospheric pressure at sea level is 1,013 millibars. When a number of resistance are connected in ___, their combined resistance is less than the smallest individual resistance. Often, weather forecasters refer to high- or low-pressure areas moving toward particular regions in order to describe predicted conditions for those areas. What is its weight on a planet whose mass is 15 times that of Earth and a radius that is 4 times that of the earth?

atmospheric pressure is measured by

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atmospheric pressure is measured by 2020