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tatuchka [14]
2 years ago
5

What types of aquatic ecosystems are there?

Geography
1 answer:
Alexus [3.1K]2 years ago
4 0

Answer:

An aquatic ecosystem derives its identity from the interaction between its watery environment and the living organisms that inhabit it. The two types of aquatic ecosystems are freshwater and marine, and the maindifference is the salinity concentration. However, these ecosystems have several characteristics in common

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Answer: 1917, two revolutions swept through Russia, ending centuries of imperial rule and setting into motion political and social changes that would lead to the formation of the Soviet Union.

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Ano ang aral na nais iparating ng kuwentong “Mensahe ng Butil ng Kape”?​
Alborosie

Answer:

I'm sorry I can't understand what your question is, but I have a suggestion for you

YOU SHOULD JUST ASK YOUR QUESTIONS IN YOUR OWN COUNTRY SO THAT SOMEONE CAN ANSWER IT AND ALSO YOUR POINTS WON'T BE WASTED IF YOU DO IT :) :) :)

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3 years ago
To measure a base lone, a steel stape 30m lang, Standardised at 15°C with a pull of 80N was used. find the correction per tape l
iren2701 [21]

The correction of thermal expansion per tape length, if the temperature at the time of measurements is 25°c and the pull exerted is 150N is 4.67 ×10 ⁻³m.

Thermal expansion is the tendency of remembering to change in form, volume, and region in response to an alternate in temperature. Temperature is a monotonic characteristic of the common molecular kinetic power of a substance.

Given,

Length of steel tape = 30m

Temperature at standardization = 15°C

The temperature at the time of measurement = 25°C

Standardized pull (Po) = 80N

Pull exerted (Pm) = 150N

Young modulus of elasticity = E =  E= 2X10^5 N/mm2

Coefficient of thermal expansion = 211.2x10^6c°

Cross-sectional area of tape = 8 mm²

For temperature correction  Cm = (Tm - T₀)αL₀

Putting α = ( 25 - 15 ) × 11.2 × 10⁻⁶ × 30

            Cm = 3.36 ×  10⁻³ m

For full correction ;

         C pull = (Pm - Po ) × Lo

Putting value'

    C pull =  (150 - 80) × 30 ×  1000 /8 ×2 × 10⁵

    C pull = 1.31 × 10 ⁻³

Total correction = 3.36 × 10⁻³ m + 1.31 × 10 ⁻³

Total correction = 4.67 ×10 ⁻³

Learn more about thermal expansion here:-brainly.com/question/1166774

#SPJ9

8 0
1 year ago
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