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3 years ago

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Elodia [21]3 years ago

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I think balance

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The components of an electronic system dissipating 90 W are located in a 1-m-long circular horizontal duct of 15-cm diameter. Th

Artyom0805 [142]

Answer:

Given data

electronic system dissipating = 90 W

diameter = 15 cm

The components in the duct are cooled by forced air which enters at 32°C at a rate of 0.65 m3 /min

the duct and the remaining = 15 %

See pictures for solution.

Explanation:

See attached pictures for detailed explanation.

4 0

3 years ago

A guy named Kirby Had touched only a gear on the projector. Yet there was a out of the blue rip. Kirby did not mind at all and s

solong [7]

The guy named Kirby didn't touch the power button on the projector. If he touched means the projector will work fine.

<u>Explanation</u>:

Kirby touched the gear on the projector. He should check the projector carefully before operating the projector. But he didn't check properly.
There was a blue rip in the projector. Kirby fails to notice the blue rip. Without minding that he has started the projector. So the tape and the projector is not working well.
He should fix the blue rip and he should press the start button in the projector. The mistake is he didn't do that. This is the thing that made the projector ripped.

7 0

3 years ago

Create a document that includes a constructor function named Company in the document head area. Include four properties in the C

Stella [2.4K]

I have added the answer as a pic due to difficulties pasting the text here.

3 0

4 years ago

The disk of radius 0.4 m is originally rotating at ωo=4 rad/sec. If it is subjected to a constant angular acceleration of α=5 ra

Lina20 [59]

Answer:32.4m/ $s^2$

Explanation:

Given data

$radius\left ( r\right )$ =0.4m

Intial angular velocity $\left ( \omega_0\right )$ =4rad/s

angular acceleration $\left ( \alpha\right )$ =5rad/ $s^2$

angular velocity after 1 sec

$\omega$ = $\omega_0$ + $\alpha\times\t$

$\omega$ =4+5 $\left ( 1\right )$

$\omega$ =9rad/s

Velocity of point on the outer surface of disc $\left ( v\right )$ = $\omega_0\timesr$

v= $9\times0.4$ m/s=3.6m/s

Normal component of acceleration $\left ( a_c\right )$ = $\frac{v^2}{r}$

$a_c$ = $\frac{3.6\times3.6}{0.4}$ =32.4m/ $s^2$

3 0

4 years ago

Who is the first presidant of the us?

dexar [7]

Answer:

George Washington was the first president

8 0

3 years ago

Read 2 more answers