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Citrus2011 [14]
2 years ago
5

Please help I’ll make u brainliest please

Physics
1 answer:
Ira Lisetskai [31]2 years ago
8 0

Answer:

14J

20000J

200J

Explanation:

formula :W=FS

W:work done

F:force (N)

S:displacement moved in direction of force (m)

1) 20N×0.7m

=14J

2) 400N×50m

= 20000J

3) 10N×20m

=200J

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Answer:

1.04 s

Explanation:

The computation is shown below:

As we know that

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1.20 = t' × 1 ÷ (√(1 - (0.5/c)^2)

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