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How do you calculate the change in velocity of an object?
To calculate the change in velocity of an object, you subtract the initial velocity from the final velocity. The formula is: Change in velocity Final velocity - Initial velocity.
How does the rocket equation account for drag in the calculation of a rocket's trajectory?
The rocket equation does not directly account for drag in the calculation of a rocket's trajectory. Drag is typically considered separately in the analysis of a rocket's flight path, as it is a complex force influenced by factors such as air density, velocity, and the shape of the rocket. The rocket equation primarily focuses on the relationship between the mass of the rocket, the velocity of the exhaust gases, and the velocity of the rocket to determine its overall performance and capabilities.
What does the thrust push against in a jet engine?
The thrust in a jet engine pushes against the surrounding air. As the engine expels high-velocity exhaust gases backward, the equal and opposite reaction propels the aircraft forward.
What is the momentum in a rocket?
The momentum in a rocket is the product of its mass and velocity. It is a measure of the rocket's motion and is conserved in the absence of external forces. The momentum of a rocket changes as it expels exhaust gases, which causes the rocket to move in the opposite direction.
What does velocity slope mean?
Velocity slope refers to the rate at which velocity changes over time. A positive velocity slope indicates an increase in velocity, while a negative velocity slope indicates a decrease in velocity. The steeper the slope, the greater the rate of change in velocity.
What is the value of exhaust gas velocity in single cylinder IC engine?
50m/s
Why do rockets have a Diverging Nozzle at the exit?
To increase the exhaust velocity. +++ Pressure, not velocity. A gas flowing through a divergent nozzle gains pressure at the cost of speed.
Bernoulli's principle states that pressure is inversely proportional to velocity so why is it that in a trubojet afterburner the exhaust gas velocity increases when pressure increases?
There is that pesky factor associated with injecting fuel into the exhaust gas stream and having it burn. This adds a lotof energy to the exhaust gas stream. (That's why we do it.) The result is an observed increase in both the pressure and the velocity of that exhaust gas. Bernoulli was aware of this variable, and he said so. But he didn't write his law based on making a major chemical and physical alteration to the fluid stream.
What is the wind velocity in the back blast area in a jet runway?
Jet engine blast is a lot more than the plane move. A velocity of jet engine exhaust velocity is 3200 m/s for boing 747-400 top speed (velocity 212 m/s).Addition to thruster velocity principle:Velocity is associate with momentum of plane where the mass of air to move must be balance with its' velocity in compare to plane mass and velocity.Where the plane is massive in ratio to exhaust thruster mass. Thruster must be compensate with higher velocity in the ratio to plane mass.
What are the 2 factors of the thrust of any rocket engine?
1. The amount of Matter being expelled through the Exhaust Nozzle.2. The Velocity of the Matter being Expelled.
What is propulsion efficiency?
It is efficiency of the propelling device in converting the applied torque into useful thrust. In an IDEAL propeller the freestream velocity and the slipstream velocity should be same. The higher the exhaust/slip stream velocity, higher is the wasted kinetic energy. Thus turbojet engine has lower propulsive efficiency and turbo-prop engine has higher propulsive efficiency.
What is the improtance of a rocket nozzle?
A rocket nozzle is crucial for the efficient conversion of high-pressure gas into thrust. It accelerates and directs the flow of exhaust gases out of the rocket engine to generate propulsion. The size and shape of the nozzle influence the velocity and efficiency of the exhaust gases, impacting the overall performance of the rocket.
What sound does car make?
It depends on the type of engine, if the engine is running and at what load. It also depends on the velocity of the car and the type of exhaust system, if the radio is on, the surface over which t is travelling, etc.
Why turbine blades are largenr in size at exhaust end?
Because the steam expands as it passes through the turbine. The steam velocity through the turbine is constant from steam chest to exhaust hood (though it changes in each stage). Thus, the space needed for the steam to expand needs to be expanded to correspond with that expansion of the steam.
How do you calculate the change in velocity of an object?
To calculate the change in velocity of an object, you subtract the initial velocity from the final velocity. The formula is: Change in velocity Final velocity - Initial velocity.
How do you find the intake and exhaust lifters on a engine?
The exhaust lifters will line up with the exhaust manifolds,Remove the valve cover if your working on a V8 and the valve that lines up with the exhaust port will be the exhaust valve,If it is a Chevy V8 they will be from standing in front of the car exhaust,intake,intake,exhaust,exhaust,intake,intake,exhaust.
What is the verb of exhaust?
exhaust
