The following is a feedback mechanism for a system :
<u>The progress bar when downloading a file on iTunes</u>
<u></u>
Explanation:
- A feedback mechanism is a loop system wherein the system responds to a perturbation. The response may be in the same direction (as in positive feedback) or in the opposite direction (as in negative feedback).
- Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop. The system can then be said to feed back into itself.
- Evaluation feedback needs to be done “in the moment” to help the person receiving the feedback know where they stand.
- A feedback control system consists of five basic components: (1) input, (2) process being controlled, (3) output, (4) sensing elements, and (5) controller and actuating devices.
- Because negative feedback produces stable circuit responses, improves stability and increases the operating bandwidth of a given system, the majority of all control and feedback systems is degenerative reducing the effects of the gain.
Answer:
decreased
Explanation:
when impaired you react slower then you would sober.
Answer:
option (a)
Explanation:
t = 5 sec, α = 2 rad/s^2, f0 = 20 rpm = 20 / 60 rps
Use second equation of motion for rotational motion
θ = ω0 x t + 1/2 α t^2
θ = 2 x 3.14 x 5 x 20 / 60 + 0.5 x 2 x 5 x 5
θ = 10.47 + 25 = 35.47 rad
Number of revolution = 35.47 / (2 x 3.14) = 5.65
Answer: 0.306 kg/s
Explanation:
If we assume that the specific heat for all stream is constant, we can then say, the mass flow rate of cold water can be calculated by using the energy balance equation.
The energy balance equation basically states that, the heat gained is equal to the heat lost
m'1h1 + m'2h2 = m'3h3
m'1T1 + m'2T2 = (m'1 + m'2) T3
0.5 (60) + m'2(10) = (0.5 + m'2)41
30 + 10m'2 = 20.5 + 41m'2
30 - 20.5 = 41m'2 - 10m'2
9.5 = 31m'2
m'2 = 9.5 / 31
m'2 = 0.306 kg/s
Answer:
Δp = ∫
Explanation:
The pressure drop formula is given above. It determines the relation between pressure drop per unit along with smooth walled channel. The formula is from Buckingham pi theorem in which repeating and non repeating variables are used together.
