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alex41 [277]
3 years ago
12

Help me please, first to answer gets a brainliest!​

Chemistry
2 answers:
hoa [83]3 years ago
8 0

Answer:

I think it's commensalism

Explanation:

zheka24 [161]3 years ago
8 0
Parasitism hopefully this helps you
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the length of a string is 16cm.Its length becomes 20cm when supporting a weight of 5N.Calculate the length of the string when su
guapka [62]

Answer:

<h2>20.8cm</h2>

Explanation:

According to hooks law "provide the elastic limit of an elastic material is not exceeded the extension e is directly proportional to the applied force F"

F= ke

where F= applied force

           k= spring constant

           e= extension

Given data

length of string l = 16cm

extension  e = 20-16= 4cm

applied force = 5N

we need t o first calculate the spring constant k

apply the formula

F= ke

5=k*4\\k= \frac{5}{4} \\k= 1.25N/cm

we can now calculate the extension of the string when supporting a 6N weight

F= ke\\6=1.25*e\\e= \frac{6}{1.25} \\e= 4.8cm

The length of the string when supporting a 6N weight is

= length+ extension\\= 16+4.8\\= 20.8cm

<em>COMMENT </em><em>:According to the analysis an extra  weight of 1N will cause add 0.8cm to the length of the string</em>

4 0
3 years ago
A gold block with a mass of 325 g was heated from 22°C to 87°C. How much heat
KonstantinChe [14]

Answer:

hi friends I am so sorry sorry sorry sorry sorry sorry sorry I don't no answer

Explanation:

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About 25 of the 92 natural elements are known to be essential to life. which four of these 25 elements make up approximately 96%
ikadub [295]
The correct answer would be the second option. Four of these 25 elements that make up approximately 96% of living matter are carbon, hydrogen, nitrogen, oxygen. The elements carbon and hydrogen are the backbone for organic compounds which is the foundation of cells that are present in all living matter. Also, the cells in all living matter are made up of protein which are primarily made up of amino acids which contains nitrogen, oxygen, carbon and hydrogen atoms. So, basically, without these elements in the cells all living matter would not be present and there would be no life in any case.
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477889654 that the mass
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i don ,t no  an go set 2 for 4



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