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RoseWind [281]
3 years ago
10

Which are the simplest pure substances that cannot be broken down into any other substances

Physics
1 answer:
Veseljchak [2.6K]3 years ago
6 0
The simplest pure substances that cannot be broken down into any other substances are elements, such as gold (Au) or oxygen (O).
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given,

length of bar = 80 cm

mass of the bar = 10 kg

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s_1 + s_2 = 10 + 4

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taking moment about B

s_1 \times 0.8 - 10 \times 0.4 - 4 \times 0.6 = 0

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s_1 = 8\ N

s_2 = 14 - s_1

s_2 = 14 - 8

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