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bekas [8.4K]
3 years ago
8

What are 3 facts about cnidarians?

Physics
2 answers:
alexira [117]3 years ago
5 0
What are cnidarians?
Debora [2.8K]3 years ago
3 0
1) Is a phylum
2) there distinguishing feature is cnidocytes
3) specialized cells mainly used for capturing prey
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WhAT is the change IN THE entropy of 2.0kg of h2o molecules when transform at a constant pressure of 1 atm from water at 100 deg
Fynjy0 [20]

Answer:

The entropy change is 45.2 kJ/K.

Explanation:

mass of water at 100 C = 2 kg

Latent heat of vaporization, L = 2260 kJ/kg

Heat is

H = m L

H = 2 x 2260 = 4520 kJ

Entropy is given by

S = H/T = 4520/100 = 45.2 kJ/K

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3 years ago
A satellite of mass m is moving in a circular orbit around the earth at a constant speed v and at an altitude h above the earth'
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The satellite executes a rotation motion around the earth, because Earth's force of attraction plays the role of centripetal force:

Fa=Fcp=>k*Mp*m/(Rp+r)²=mv²/(Rp+r)=>v=√(k*Mp/(Rp+r))=√(6.67*10⁻¹¹*5.98*10²⁴/(6371*10³+1000*10³))=√(39.88*10¹³/(7371*10³))=√(5.41*10⁷)=7355.53 m/s


Check the calculations again !


7 0
3 years ago
Two difference between lever and pulley​
Annette [7]

Answer:

Differences can be :

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2. Lever is of 3 types (first class , second class , third class ) but pulley is of only 2 types

I hope this helps you

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Answer: Positive Talk

Explanation:

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tatiyna
The answer is A. A folkway is a closely held belief by a specific group of people.
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