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Ronch [10]
3 years ago
10

Why is oil black and why does oil look black

Engineering
1 answer:
Rina8888 [55]3 years ago
4 0

Answer:While heat cycles cause oil to darken, soot causes oil to turn black

Explanation:

Most people associate soot with diesel engines, but gasoline engines can produce soot as well, particularly modern gasoline-direct-injection engines. ... Any finer filtration and the filter could catch dissolved additives in the motor oil

You might be interested in
A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. Calculate the number of atoms in t
uysha [10]

Answer:288 pm

Explanation:

Number of atoms(s) for face centered unit cell -

Lattice points: at corners and face centers of unit cell.

For face centered cubic (FCC), z=4.

- whereas

For an FCC lattices √2a =4r =2d

Therefore d = a/√2a = 408pm/√2a= 288pm

I think with this step by step procedure the, the answer was clearly stated.

8 0
3 years ago
What is "Engineering"?
Liono4ka [1.6K]
Engineering is when both the application of science and math are used to solve problems. An engineer is a person who designs, builds, or maintains engines, machines, or public works. There are six large branches of engineering such as Mechanical, Chemical, Civil, Electrical, Management, and Geotechnical, they all have hundreds of subcategories of engineering under each different branch.
5 0
3 years ago
An astronaut weighs 125 lbs on the surface of the Earth. What would she weigh in lbs if she is resting in the space shuttle that
alina1380 [7]

Answer:

weight of astronaut  F_2 = 113.38 lb

Explanation:

Given data:

astronaut weight is = 125 lbs

distance of shuttle from  surface of earth is 200 mils

we know that F = G \frac{m_1 m_2}{r^2}

where G, m_1, m_2 are constant value, so we have

\frac{F_1}{F_2} = \frac{r_2^2}{r_1^2}

radius of earth is 4000 miles

where r_2 = 4000 + 200 = 4200 miles

\frac{125}{F_2} = \frac{4200^2}{4000^2}

F_2 = 113.38 lb

3 0
3 years ago
Can anyone solve this for me?sequential circuit ,flipflop
andrezito [222]

Explanation:

We assume the T flip-flop changes state on the rising edge of the clock input.

The first stage is connected to the clock. The second stage clock is connected to the inverse of the Q output of the first stage, so that when the first stage Q makes a 1 to 0 transition, the second stage changes state.

6 0
2 years ago
36. What is mass? (4.4)
KatRina [158]

Answer:

Mass, in physics, quantitative measure of inertia, a fundamental property of all matter.

Explanation:

Mass is the matter that makes up objects

3 0
3 years ago
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