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weeeeeb [17]
3 years ago
8

Biodiversity affects the sustainability of an ecosystem by —

Physics
2 answers:
Vlad [161]3 years ago
6 0

Answer:

A.

Explanation:

A great variety of Gene's and species means that the ecosystem is better able to carry out natural processes in the face of external stress. Thus, the ecosystem is more sustainable

frozen [14]3 years ago
4 0
B. i hope this helps!
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Two friends, Al and Jo, have a combined mass of 168 kg. At an ice skating rink they stand close together on skates, at rest and
Keith_Richards [23]

Answer: 91.94 kg

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At the beginning, Al and Jo are united without movement, so their initial momentum is zero.

After the release of their hands, Al goes in one direction and Jo moves to the opposite direction. Suppose the direction Al is moving is positive. Conservation of momentum will be

m_{1}v_{1}_{(f)}+m_{2}v_{2}_{(f)}=m_{1}v_{1}_{(i)}+m_{2}v_{2}_{(i)}

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index i referes to initial momentum

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index 1 refers to Al

index 2 to Jo

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0.91m+1.1m-184.8=0

2.01m=184.8

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