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2 years ago

Earth Atmosfear is uniqe amongst the planets and is able to support life because it contains a large amount of __?

Physics

1 answer:

kiruha [24]2 years ago

3 0

Answer:

Explanation:

The abundance of oxygen in our atmosphere and the presence of liquid water on the surface of our planet makes our "Pale Blue Dot" stand out in contrast to the other planets in the solar system — a unique and fragile home for life.

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When we do dimensional analysis, we do something analogous to stoichiometry, but with multiplying instead of adding. Consider th

Ksivusya [100]

Answer:

The dimension is $D = L ^{2} T^{-1}$

Explanation:

From the question we are told that

$J = -D \frac{dn}{dx}$

Here $[J] = \frac{1}{L^2 T}$

$[n] =\frac{1}{L^3}$

$[x] = L$

$\frac{1}{L^2 T} = -D \frac{d(\frac{1}{L^3})}{d[L]}$

Given that the dimension represent the unites of n and x then the differential will not effect on them

$\frac{1}{L^2 T} = -D \frac{(\frac{1}{L^3})}{[L]}$

=> $D = \frac{L^{-2} T^{-1} * L }{L^{-3}}$

=> $D = L ^{2} T^{-1}$

5 0

3 years ago

Which is an example of making a qualitative observation?

Alisiya [41]

"Describing how copper changes color in chlorine" is the answer I think is right. Hope this helped!

4 0

4 years ago

Read 2 more answers

A nonconducting spherical shell, with an inner radius of 4 cm and an outer radius of 6 cm, has charge spread non uniformly throu

Aloiza [94]

In other words a infinitesimal segment dV caries the charge
dQ = ρ dV 

Let dV be a spherical shell between between r and (r + dr): 
dV = (4π/3)·( (r + dr)² - r³ ) 
= (4π/3)·( r³ + 3·r²·dr + 3·r·(dr)² + /dr)³ - r³ ) 
= (4π/3)·( 3·r²·dr + 3·r·(dr)² + /dr)³ ) 
drop higher order terms 
= 4·π·r²·dr 

To get total charge integrate over the whole volume of your object, i.e. 
from ri to ra: 
Q = ∫ dQ = ∫ ρ dV 
= ∫ri→ra { (b/r)·4·π·r² } dr 
= ∫ri→ra { 4·π·b·r } dr 
= 2·π·b·( ra² - ri² ) 

With given parameters: 
Q = 2·π · 3µC/m²·( (6cm)² - (4cm)² ) 
= 2·π · 3×10⁻⁶C/m²·( (6×10⁻²m)² - (4×10⁻²m)² ) 
= 3.77×10⁻⁸C 
= 37.7nC

6 0

4 years ago

Which of the following lies in the ecliptic plane?

babymother [125]

<h2>Answer: Earth's orbital path around the Sun</h2><h2></h2>

The Ecliptic refers to the orbit of the Earth around the Sun. Therefore, for an observer on Earth it will be the apparent path of the Sun in the sky during the year, with respect to the "immobile background" of the other stars.

It should be noted that the ecliptic plane (which is the same orbital plane of the Earth in its translation movement) is tilted with respect to the equator of the planet about $23\°$ approximately. This is due to the inclination of the Earth's axis.

Hence, the correct option is Earth's orbital path around the Sun.

7 0

4 years ago

The natural pH of rain water is?

SOVA2 [1]

5.6 which would be acidic!

6 0

3 years ago

Read 2 more answers