Answer:
e= 50 J/kg
Explanation:
Given that
Speed ,v= 10 m/s
Diameter of the turbine = 90 m
Density of the air ,ρ = 1.25 kg/m³
We know that mechanical energy given as
That is why mechanical energy per unit mass will be
Now by putting the values in the above equation we get
e= 50 J/kg
That why the mechanical energy unit mass will be 50 J/kg.
Answer:
Yes
Explanation:
As we know that octane number resist the engine from knocking.If knocking can prevent that automatically the performance of engine will increases.If octane number is 100 then it means that knocking tendency in the engine is zero.So higher the octane number better will the performance of the engine.
Generally octane number is 87 but for premier gasoline is 92 or 93.
So we can say that if octane number is 93 then car will give better performance
The example of a subsystem and system relationship is option
A) mechanical toggle, Xbox controller
Explanation:
- Controls and Controllers are known as the mechanical, electro-mechanical, or electronic devices which are used to input signals to change the conditions or values which are in processes or access to buildings, operators, gated areas, etc.
- When you press and hold the given Shift button, these buttons which are chosen becomes an alternate inputs.
- Normally, there are three controllers(PID) which are used in any of the process industries inorder to maintain and control the required setpoint.
- an example of a subsystem and system relationship is a mechanical toggle, Xbox controller
- Controllers improve the steadiness and state of accuracy by decreasing the steady state error. When the steady state accuracy gets better, the stability also improves.
- Controllers are also used to help in reducing the unwanted offsets which are produced by the system.
Answer: a) -5 ft/s²
B) 4.5 ft
Explanation: Radius= 250ft
Velocity V = 3(t-t²)ft/s
A). When t= 3 s, the acceleration is
dv/dt = 1-2t
dv/dt = 1- 2(3)
= 1-6
= -5 ft/s²
B. How far it traveled in 3 sec
Distance= 3t²/2 -t³/3 ft
Substituting 3
Distance = 27/2 - 9
= 13.5 - 9
= 4.5 ft
Answer: I'm pretty sure Slots is the Answer
