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dmitriy555 [2]
3 years ago
14

An electric current of 237.0 mA flows for 8.0 minutes. Calculate the amount of electric charge transported. Be sure your answer

has the correct unit symbol and the correct number of significant digits x10
Engineering
1 answer:
aleksley [76]3 years ago
4 0

Answer:

amount of electric charge transported =  1.13 × 10^{-2} C

Explanation:

given data

electric current = 237.0 mA = 0.237 A

time = 8 min = 8 × 60 sec = 480 sec

solution

we get here amount of electric charge transported that is express as

amount of electric charge transported = electric current × time  ...........1

put here value and we get

amount of electric charge transported = 0.237  × 480

amount of electric charge transported = 113.76 C

amount of electric charge transported =  1.13 × 10^{-2} C

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You have a motor such that if you give it 12 Volt, it will eventually reach a steady state speed of 200 rad/s. If it starts from
Aleksandr [31]

Answer:

a) \frac{Ws}{Es}  = \frac{200}{1+1.2s}

b) attached below

c) type zero system

d) k > \frac{g}{200}

e) The gain K increases above % error as the  steady state speed increases

Explanation:

Given data:

Motor voltage  = 12 v

steady state speed = 200 rad/s

time taken to reach 63.2% = 1.2 seconds

<u>a) The transfer function of the motor from voltage to speed</u>

let ; \frac{K1}{1+St} be the transfer function of a motor

when i/p = 12v then steady state speed ( k1 ) = 200 rad/s , St ( time constant ) = 1.2 sec

hence the transfer function of the motor from voltage to speed

= \frac{Ws}{Es}  = \frac{200}{1+1.2s}

<u>b) draw the block diagram of the system with plant controller and the feedback path </u>

attached below is the remaining part of the detailed solution

c) The system is a type-zero system because the pole at the origin is zero

d) ) k > \frac{g}{200}

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3 years ago
Army people are good people right
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4. A banking system provides users with several services:
VLD [36.1K]

A diagram showing a use case diagrams for these requirements is given in the image attached.

<h3>What is system Case diagram?</h3>

A use case diagram is known to be a kind of graphical illustration of a users in terms of their various possible association or interactions within any given system.

A use case diagram in banking can be used to prepare, depict and also to know all the functional requirements of the banking system.

Therefore, Give the use case specification for the banking system services and paying a bill online is given in the image attached.

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2 years ago
19. What part of the engine is shown at point "A" in the above figure?
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Explanation:

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3 years ago
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The pilot of an airplane reads the altitude 6400 m and the absolute pressure 45 kPa when flying over the city. Calculate the loc
garri49 [273]

Answer:

1) The absolute pressure equals = 96.98 kPa

2) Absolute pressure in terms of column of mercury equals 727 mmHg.

Explanation:

using the equation of pressure statics we have

P(h)=P_{surface}-\rho gh...............(i)

Now since it is given that at 6400 meters pressure equals 45 kPa absolute hence from equation 'i' we obtain

P_{surface}=P(h)+\rho gh

Applying values we get

P_{surface}=45\times 10^{3}+0.828\times 9.81\times 6400

P_{surface}=96.98\times 10^{3}Pa=96.98kPa

Now the pressure in terms of head of mercury is given by

h_{Hg}=\frac{P}{\rho _{Hg}\times g}

Applying values we get

h=\frac{96.98\times 10^{3}}{13600\times 9.81}=0.727m=727mmHg

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