jaemitchell23
07.11.2019 •
Physics
Air is flowing through a rocket nozzle. inside the rocket the air has a density of 5.25 kg/m3 and a speed of 1.20 m/s. the interior diameter of the rocket is 15.0 cm. at the nozzle exit, the diameter is 2.50 cm and the density is 1.29 kg/m3. what is the speed of the air when it leaves the nozzle? air is flowing through a rocket nozzle. inside the rocket the air has a density of 5.25 kg/m3 and a speed of 1.20 m/s. the interior diameter of the rocket is 15.0 cm. at the nozzle exit, the diameter is 2.50 cm and the density is 1.29 kg/m3. what is the speed of the air when it leaves the nozzle? 45.7 m/s 29.3 m/s 88.0 m/s 123 m/s 176 m/s
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Ответ:
The velocity at exit of the nozzle is 175.8 m/s
Solution:
As per the question:
Air density inside the rocket,
Speed, v = 1.20 m/s
The inner diameter of the rocket,
The inner radius of the rocket,
The exit diameter of the nozzle,
The exit radius of the nozzle,
Air density inside the nozzle,
Now,
To calculate the air speed when it leaves the nozzle:
Mass rate in the interior of the rocket,
Mass rate in the outlet of the nozzle,
Now,
Now,
We know that:
v' = 175.8 m/s
Ответ:
Step-by-step explanation:
From the table of function given, you would observe that if you subtract 2 from half of the x-variable values, you'd get the y-variable values.
For example, half of -8 = -4. If you add 2 to -4, you'd get: -4 + 2 = -2. Same applies to other x-values on the table.
Thus, an expression for the function represented by the table values can be written as,