Physics, 05.05.2020 13:11 jerryG6171

Why would the velocity of a mechanical wave change as it passes through each of the three states of matter (solids, liquids, and gasses)?

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Answer from: SmokeyRN

Because Mechanical waves move more quickly through solids than through liquid and through gases.

Explanation:

Of the three phases of matter (gas, liquid, and solid), sound waves as mechanical waves travel the slowest through gases, faster through liquids, and fastest through solids.

Sound moves slowest through a gas because the molecules in a gas are spaced very far apart. In order for sound to travel through air, the floating molecules of matter must vibrate and collide to form compression waves. Because the molecules of matter in a gas are spaced far apart, sound moves slowest through a gas.

Sound travels faster in liquids than in gases because molecules are packed more closely together. This means that when the liquid molecules begin to vibrate, they quickly begin to collide with each other forming a rapidly moving compression wave. Sound travels over four times faster than in air!

Sound travels fastest through solids. This is because molecules in a solid are packed against each other. When a vibration begins, the molecules of a solid immediately collide and the compression wave travels rapidly. Sound waves travel over 17 times faster through metals than through air.

Answer from: Quest

the independent variable, or the one that is intentionally manipulated is the speed.

Answer from: Quest

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

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Why would the velocity of a mechanical wave change as it passes through each of the three states of...

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