define 1,Thrust 2,Pressure 3,Density 4,Relative Density
Answers & Comments
dharanee2015
1. THRUST is the force acting normally downward on an object which in other words can be said as weight. 2. PRESSURE is the force acting per unit area or meter square. 3. Density is the amount of mass a substance has per unit volume or can be also said as how heavy to its volume 4. RELATIVE DENSITY is the density of an object by the density of water. Relative density has no standard unit for it.
1. Thrust is the force which moves an aircraft through the air. Since thrust is a force, it is a vector quantity having both a magnitude and a direction. The engine does work on the gas and accelerates the gas to the rear of the engine; the thrust is generated in the opposite direction from the accelerated gas.
2. Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. ... Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure, and the torr is defined as 1⁄760 of this.
3. The density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: {\displaystyle \rho ={\frac {m}{V}}} where ρ is the density, m is the mass, and V is the volume.
4. Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water at its densest; for gases, the reference is air at room temperature.
Answers & Comments
2. PRESSURE is the force acting per unit area or meter square.
3. Density is the amount of mass a substance has per unit volume or can be also said as how heavy to its volume
4. RELATIVE DENSITY is the density of an object by the density of water. Relative density has no standard unit for it.
Answer:
1. Thrust is the force which moves an aircraft through the air. Since thrust is a force, it is a vector quantity having both a magnitude and a direction. The engine does work on the gas and accelerates the gas to the rear of the engine; the thrust is generated in the opposite direction from the accelerated gas.
2. Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. ... Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure, and the torr is defined as 1⁄760 of this.
3. The density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: {\displaystyle \rho ={\frac {m}{V}}} where ρ is the density, m is the mass, and V is the volume.
4. Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water at its densest; for gases, the reference is air at room temperature.