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vagabundo [1.1K]

4 years ago

12

A sonar pulse is sent from one submarine to another submarine, where it is reflected and returned. If the round trip takes 6 sec

onds, how far away is the other submarine? (Assume the bulk modulus for seawater is 2.1 x 109 Pa and its density is 1030 kg/m3)

1 answer:

ipn [44]4 years ago

5 0

Answer:

4283.64 m away

Explanation:

$\beta$ = Bulk modulus

$\rho$ = Density

Speed of sound in a material is given by

$v=\sqrt{\frac{\beta}{\rho}}\\\Rightarrow v=\sqrt{\frac{2.1\times 10^9}{1030}}\\\Rightarrow v=1427.88\ m/s$

If the round trip takes 6 seconds then the one way trip wil take 3 seconds

Distance = Speed × Time

$Distance=1427.88\times 3=4283.64\ m$

So, the other submarine is 4283.64 m away

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A cube 6.0 cm on each side is made of a metal alloy. After you drill a cylindrical hole 2.0 cm in diameter all the way through a

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To solve this problem it is necessary to apply the concepts related to Newton's second law, the definition of density and the geometric relationships that allow us to find the volume of the figures presented.

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We need to find the mass, but we have the Weight and Gravity so from Newton's second Law

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4 years ago

a coil of 40 henry inductance is connected in series with aresistance of 8ohm and the combination is joined to the terminals of

Andreyy89

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Given the following :

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Resistance = 8 ohms

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3 years ago

A man standing on top of a 30 m tall building throws a brick downwards with a velocity of 12 m/s. Determine the speed of the bri

loris [4]

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3 years ago