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katrin2010 [14]
3 years ago
10

What is the purpose of the three R’s of resource management?

Physics
2 answers:
ladessa [460]3 years ago
7 0
The three R's of waste management<span>, this waste hierarchy is the guidance suggested for creating a sustainable life.</span>
svlad2 [7]3 years ago
3 0
The three R's<span> – reduce, reuse and recycle – all help to cut down on the amount of waste we throw away. They conserve natural </span>resources<span>, landfill space and energy.

Hope that helped :)</span>
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A circular swimming pool has a diameter of 12 m. The circular side of the pool is 3 m high, and the depth of the water is 2.5 m.
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Answer:

Explanation:

Diameter of pool = 12 m

radius of pool, r = 6 m

Total height raised, h = 3 + 2.5 = 5.5 m

density of water, d = 1000 kg/m³

Mass of water, m = Volume of water x density

m = πr²h x d

m = 3.14 x 6 x 6 x 5.5 x 1000

m = 113040 kg

Work = m x g x h

W = 113040 x 9.8 x 5.5

W = 6092856 J

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