All categories

3 years ago

Estimate the weight of 25 km of gas pipeline, DN = 610 mm and wall thickness = 12.7 mm.

Physics

1 answer:

balu736 [363]3 years ago

6 0

Answer:

Weight = 45880 kN

Explanation:

Gas pipeline material is steel.

Density of steel = 7850 kg/m³

Mass = Volume x Density

Volume = Area x Length

Outer diameter = 610 mm

Internal diameter = 610 - 2 x 12.7 = 584.6 mm

$\texttt{Area}=\frac{\pi}{4}(610^2-584.6^2)=23831.21mm^2=0.0238m^2$

Length = 25 km = 25000 m

Volume = 25000 x 0.0238 = 595.78 m³

Mass = 595.78 x 7850 = 4676875.12 kg

Weight = Mass x Acceleration due to gravity = 4676875.12 x 9.81 = 45880 kN

Weight = 45880 kN

You might be interested in

Inez uses hairspray on her hair each morning before going to school. The spray spreads out before reaching her hair partly becau

____ [38]

The charge on each of the equally charged drops of hairspray willl be 7 × 10 ⁻¹³ C

<h3>What is Columb's law?</h3>

The force of attraction between two charges, according to Coulomb's law, is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

Similar charges repel each other, whereas charges that are opposed attract each other.

Given data;

Electric force,F = 9 × 10 ⁻⁹ N

Distance between charges,d = 7 × 10⁻⁴ m

Chrge,q₁ = q₂ =q C

From Columb's law;

$\rm F = K \frac{q_1q_2}{d^2} \\\\ 9 \times 10^{-9} = 9 \times 10^9 \frac{q^2}{(7 \times 10^{-4})^2} \\\\ q^2 = 4.9 \times 10^{-25} \\\\ q = 7 \times 10^{-13} \ C$

Hence the charge on each of the equally charged drops of hairspray willl be 7 × 10 ⁻¹³ C

To learn more about Columb's law refer to the link;

brainly.com/question/1616890

#SPJ1

7 0

2 years ago

Compared to water, most metals have low specific heats.<br> true<br> or<br> false

Alchen [17]

Yes that's a true statement. That's why grandmother put a hot water bottle to warm up her bed, and not a hot bar of steel or lead.

8 0

4 years ago

Read 2 more answers

X + 10 times X = 50 what is the answer

tia_tia [17]

Answer:

4.54

Explanation:

X+10X=50

11X=50

X=4.54#

<h2>please follow me...</h2>

3 0

3 years ago

A satellite of Mars, called Phobos, has an orbital radius of 9.4 ✕ 106 m and a period of 2.8 ✕ 104 s. Assuming the orbit is circ

FromTheMoon [43]

Answer:

$6.27*10^{23}kg$

Explanation:

assume

M= mass of Mars

m=mass of phobos

r=orbital radius

T=period

we can apply F=ma to this orbital motion (considering the cricular motion laws)

where,

$F=\frac{GMm}{r^{2} }$ and a=rω^2

where ω= $\frac{2\pi }{T}$ and G is the universal gravitational constant.

G = 6.67 x 10-11 N m2 / kg2

$F=ma\\\frac{GMm}{r^{2} }=mr(\frac{2\pi }{T} )^{2}\\ M=\frac{r^{3}}{G} (\frac{2\pi }{T} )^{2}\\M=\frac{(9.4*10x^{6} )^{3}*(2\pi )^{2} }{(2.8*10^{4}) ^{2} *6.67*10^{-11} } \\M=6.27*10^{23}kg$

6 0

3 years ago

Which philosopher suggested that the mind and body are separate but that a link exists between them?

hammer [34]

<span>René Descartes suggests this.</span>

7 0

3 years ago

Read 2 more answers