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Phantasy [73]
3 years ago
10

Can someone please take there time and answer this for me :)

Physics
2 answers:
Tems11 [23]3 years ago
7 0

Answer:

number 1

Explanation:

they have common ancestors

ira [324]3 years ago
7 0
The first one is correct!! the reason people study the similarities in embryos is to try and see which organisms have closer common ancestry, even if in life they are extremely different
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Explain why air masses do not mix
kati45 [8]

 

Different densities have to have a reason - different pressure and/or humidity etc. If there is a different pressure, there is a mechanical force that preserves the pressure difference: think about the cyclones that have a lower pressure in the center. The cyclones rotate in the right direction and the cyclone may be preserved by the Coriolis force.

If the two air masses differ by humidity, the mixing will almost always lead to precipitation - which includes a phase transition for water etc. It's because the vapor from the more humid air mass gets condensed under the conditions of the other. You get some rain. In general, intense precipitation, thunderstorms, and other visible isolated weather events are linked to weather fronts.

At any rate, a mixing of two air masses is a nontrivial, violent process in general. That's why the boundary is called a "front". In the military jargon, a front is the contested frontier of a conflict. So your idea that the air masses could mix quickly and peacefully - whatever you exactly mean quantitatively - either neglects the inertia of the air, a relatively low diffusion coefficient, a low thermal conductivity, and/or high latent heat of water vapor. A front is something that didn't disappear within minutes so pretty much tautologically, there must be forces that make such a quick disappearance impossible.

3 0
3 years ago
11. What is the name of earth's layer on which we live?<br><br>​
ollegr [7]

Answer:

the crust

Explanation:

8 0
3 years ago
Which of the following is an example of light energy being changed to chemical energy?
gtnhenbr [62]

Answer:

A solar panel

Explanation:

7 0
3 years ago
A transformer is to be used to provide power for a computer disk drive that needs 5.2 V (rms) instead of the 120 V (rms) from th
zmey [24]

Answer:

Fewer turns

Explanation:

The secondary voltage is given as 5.2 V and the voltage from the wall outlet that is primary voltage is 120 V

We have also given number of turns in primary is 410

We know the equation for transformer \frac{V_1}{V_2}=\frac{N_1}{N_2}

\frac{120}{5.2}=\frac{410}{N_2}

N_2=17.76

As the number of turns can not be fraction so N_2=18 so transformer should fewer turns at secondary as compared to primary

7 0
4 years ago
Average velocity is different than average speed because calculating average velocity involves
Artemon [7]

Answer:

calculating displacement.

Explanation:

It's not true that displacement and distance would be the same always. Displacement is always smaller than or equal to distance as it is the smallest path between the initial and final point whereas distance is the measure of the total path covered.

8 0
3 years ago
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