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sukhopar [10]
3 years ago
10

You call to a friend from a boat floating in the ocean. Which best describes the changes in the speed of the sound waves as they

move from you to below the surface of the ocean?
The speed of sound is faster in the water than in the air.
The speed of sound is faster in the air than in the water.
The speed of sound does not change as it moves through the air or water.
The speed depends on how loud you yell.
Biology
1 answer:
Alina [70]3 years ago
8 0

The correct answer is: The speed of sound is faster in the water than in the air.  

The speed of sound is different between those two mediums because they have different densities. Since, water is denser than air, more energy is required to generate a wave but once it stars, it travels faster than it would do in air. Sound waves’ travel can be presented by particles that transmit the energy one to another as they bump. The sound speed is lower in the air (than in water) because particles are far apart, so they travel further before they collide.

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What will a hypothesis become if supported by repeated expermentation
Dovator [93]

Answer:

Answer: The correct answer is- Theory.

Hypothesis can be described as an assumption or proposition, which is made on the basis of certain evidences without knowing the real truth about it. It is tested further for investigation about the proposed explanation with the help of repeated experiments (using certain protocols).

When it becomes supported by repeated experimentation, it is converted into theory.

Thus, theory is the right answer.

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In the excretory system , a waste substance called ______ is filtered out of the blood.
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olga2289 [7]

Answer:

A. stratified squamous epithelium; absorption

Explanation:

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3 years ago
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svet-max [94.6K]

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A. dihybrid crosses

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3 years ago
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I don't think it will work.

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4 0
3 years ago
Read 2 more answers
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