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torisob [31]
3 years ago
8

Help pleasee I'm bad in this thing:(

Engineering
1 answer:
topjm [15]3 years ago
6 0

Answer:

f = 0.05Hz

Explanation:

Look at the graph. You can see that the wave complete one cycle in 20 seconds, so we can say that the period is 20s.

T = 20

frequency is just the inverse the period so

f = 1/T = 1/20 = 0.05Hz

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Answer for the question:

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3 years ago
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Answer:

percentage change in volume  = 0.00285 %

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