The tool used to gauge atmospheric pressure is a barometer. Concerning the device used to gauge air pressure, we have been questioned.
- Mercury is used in barometers. A reservoir of mercury is compressed by atmospheric pressure, and depending on the force of the air, the mercury is propelled up into the tube to a specific height. A straightforward barometer consists of a long glass tube that is filled with mercury and is closed at one end and open at the other. As most cases, the air pressure is expressed in mm Hg.
- By delivering quick, precise information on a range of metrics, Radiometer's products and solutions aid in the diagnosis and treatment of critically ill hospital patients.
- A hygrometer is a device that gauges the moisture content of soil, air, or restricted spaces. Measurements of other quantities, such as temperature, pressure, mass, or a mechanical or electrical change in a substance as moisture is absorbed, are typically used as the basis for humidity measurement systems.
- Voltmeters are used to measure voltages, while thermometers measure temperature.
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<span>Which of the following has a fixed shape?
- solid iron</span>
Answer: In the 5th dimension, they who claim to know, say that there is only one time, including the past and the future.
Answer:
Option (B)
Explanation:
To measure the distance between two objects we use the units of length.
To measure small distances we use, mm or cm or m. But if we measure large distances between two objects we use large units such that kilometer or miles.
To measure the very large distances between two objects we use large units such as Astronomical unit or Parsec.
The Astronomical unit is defied as the distance between earth and Sun.
Thus, the distance between earth and the sun is defined as 1 Astronomical unit.
1 Astronomical unit = 1 A.U. = 1.5 x 10^8 km = 1.5 x 10^11 m
Answer:
OD) 3.7 kg-m/s
Explanation:
given:
velocity of baseball, v = 25 m/s
angle below horizontal, Θ =
mass of baseball, m = 0.15 kg
Generally, momentum (p) is given by equation:
p = mv
Horizontal component is given by
p = mv cosΘ
= 0.15 kg x 25 m/s x cos
= 3.71 kg- m/s
Hence horizontal component of momentum is OD) 3.7 kg-m/s