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iVinArrow [24]
3 years ago
13

FREEEEEE POOIIIINTS RIGHT HERE EVERYONE LEVEL UPPPP​

Engineering
2 answers:
IrinaK [193]3 years ago
8 0

Answer:

Thx

Explanation:

Have a good day

Nataliya [291]3 years ago
3 0

Answer:

ty ^^

Explanation:

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A thick steel slab ( 7800 kg/m3 , c 480 J/kg K, k 50 W/m K) is initially at 300 C and is cooled by water jets impinging on one o
Nutka1998 [239]

Answer:

1791 secs  ≈ 29.85 minutes

Explanation:

( Initial temperature of slab )  T1 = 300° C

temperature of water ( Ts ) = 25°C

T2 ( final temp of slab ) = 50°C

distance between slab and water jet = 25 mm

<u>Determine how long it will take to reach T2</u>

First calculate the thermal diffusivity

∝  = 50 / ( 7800 * 480 ) = 1.34 * 10^-5 m^2/s

<u>next express Temp as a function of time </u>

T( 25 mm , t ) = 50°C

next calculate the time required for the slab to reach 50°C at a distance of 25mm

attached below is the remaining part of the detailed solution

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3 years ago
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The ignition temperature of 87-octane gasoline vapor is about 430 ∘C and, assuming that the working gas is diatomic and enters t
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Answer:

I have solved the problem below. I hope it will let you clear the concept.

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If you make a mistake in polarity when measuring the value of DC voltage in a circuit with a digital VOM, what will happen? A. T
zimovet [89]

Answer:

C. The meter will display a negative sign.

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A westbound section of freeway currently has three 12-ft wide lanes, a 6-ft right shoulder, and no ramps within 3 miles upstream
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The level of the service is loss and the density is 34.2248 pc/mi/ln

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the solution is attached in the Word file

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