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Sedbober [7]
3 years ago
8

Need answer asappp!!!

Mathematics
1 answer:
san4es73 [151]3 years ago
4 0
It would be 5/12! hope this helped
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The pointer of the vibration measuring instrument is observed to move between the 0.1 and0.3 marks on the vertical scale, when s
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Step-by-step explanation:

Given points moves b/w 0.1 of 0.3 marks Hence amplitude is 0.2

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Natural frequency (wn) = √K/m

K = 20 N/mm x 1000mm/1m = 20000N/M

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Given forcing frequency was doubled, W1 = 2 x 100=200rad/s

X1 =b/20,000/1 - (200/20)²

0.2/11 = 1 - (200/50)²/1 - (100/50)² = 0.2/11 = -15^5– 3

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