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Radda [10]
3 years ago
14

Buying shop supplies from the shop owner to work on your own car at home is an ethical practice.

Engineering
1 answer:
mixer [17]3 years ago
4 0

Answer:

true

Explanation:

trust me i know

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A desktop computer is to be cooled by a fan whose flow rate is 0.34 m3 /min. Determine the mass flow rate of air through the fan
Aleks [24]

Answer:

m = 0.238  <u>kg</u>

                  min

r = 0.063m

3 0
3 years ago
A one-dimensional slab without heat generation has a thickness of 20 mm with surfaces main- tained at temperatures of 275 K and
vlada-n [284]

Answer:

a) 512.5 KW/m2

b) 40.75 KW/m2

c) 2 KW/m2

Explanation:

Given data;

T_2 = 325 K

T_1 = 275 K

dx = 0.20 mm

a) for aluminium   K = 205 W/m k

heat flux = k \frac{dt}{dx}

               = 205 \frac{325 - 275}{0.02}

               = 512.5 KW/m2

b) for AISI 316 stainless steel

k = 16.3 W/ m k

heat flux = k \frac{dt}{dx}

               = 16.3 \frac{325 - 275}{0.02}

               = 40.75 KW/m2

C) for Concrete

k = 0.8 W/ m k

heat flux = k \frac{dt}{dx}

               = 0.8 \times \frac{325 - 275}{0.02}

               = 2 KW/m2

6 0
3 years ago
PLEASE HELP, THANK YOU
Elena L [17]

Answer:

6,3,2,5,1,4 because they jst are

Explanation:

3 0
3 years ago
What type of drawing would civil engineers use if they needed to show an
Katyanochek1 [597]

Answer:

I would say an Oblique drawing.

Explanation:

An oblique drawing uses 45 degree angles.

5 0
4 years ago
A piston moves a 25kg hammerhead vertically down 1m from rest to a
UkoKoshka [18]

Answer:

Total change in energy = 31 KJ.

Explanation:

Mass m=25 kg

Height h = 1 m

Initial velocity = 0

Final velocity = 50 m/s

Energy at initial condition

E_1=mgh+\dfrac{1}{2}mv^2

E_1=25\times 10\times 1+0

E_1=250\ J

Energy at final condition

E_2=0+\dfrac{1}{2}\times 25\times 50^2

E_2=31250\ J

So the change in energy = 31250 -250 J

The total change in energy = 31000 J

5 0
4 years ago
Read 2 more answers
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