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Maurinko [17]
2 years ago
11

A sonar emits a sound signal of frequency 40000Hz, towards the bottom of the sea.

Physics
1 answer:
kap26 [50]2 years ago
8 0

Answer:

0.000025s

Explanation:

Period it’s. : T(s)= 1/f(Hz)=1/40000Hz=0.000025s

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The boom is supported by the winch cable that has a diameter of 0.5 in. and allowable normal stress of σallow=21 ksi. A boom ris
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Explanation:

Let us assume that forces acting at point B are as follows.

        \sum F_{x} = 0

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From equation (1),   F_{AB}Sin (60^{o})  = -3925

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From equation (2),    -12877.29 (Cos 60) + W = 0

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