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julia-pushkina [17]

3 years ago

7

Sound travels about four (4) times faster in water than it doss in air. If the speed of sound in air is 343 m/s, how long would

it take sound to travel five (5) miles under water? Express answer in seconds.

2 answers:

erma4kov [3.2K]3 years ago

7 0

(1 sec/(4 x 343 meters)) x (5 miles) x (1609 meters/ mile) = 5.865 seconds.

IceJOKER [234]3 years ago

4 0

Any pictures for this question?

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2 years ago

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Answer:

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8 0

4 years ago

The following is the longitudinal characteristic equation for an F-89 flying at 20,000 feet at Mach 0.638. The Short Period natu

BartSMP [9]

Answer:

hello your question is incomplete attached below is the missing part

answer : short period oscillations frequency = 0.063 rad / sec

phugoid oscillations natural frequency ( $w_{np}$ ) = 4.27 rad/sec

Explanation:

first we have to state the general form of the equation

= $( S^2 + 2\alpha _{p} w_{np} S + w^{2} _{np} ) (S^{2} + 2\alpha _{s} w_{ns}S + w^{2} _{ns} ) = 0$

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8 0

3 years ago