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inna [77]
3 years ago
5

The ________ wave is characteristic of stage 1 sleep

SAT
2 answers:
Snezhnost [94]3 years ago
8 0

<u>ANSWER: </u>

The alpha wave is characteristic of stage 1 sleep

<u>EXPLANATION:</u>  

  • Stage 1 is the initial stage of the sleep cycle. It is considered to be an evolution period between sleeplessness and sleep. During Stage 1, the brain produces theta or alpha waves which are of high amplitudes.
  • These brain waves are too slow, and during this period, sleep lasts about five to ten minutes. If you arise someone during this stage they would tell that they didn't fell asleep.
NNADVOKAT [17]3 years ago
6 0
The answer is Theta waves
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A sample of pure lithium nitrate contains 7. 99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitr
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Considering the definition of percentage by mass, the sample of pure lithium nitrate contains 7.99% lithium by mass.

<h3>Definition of percentage by mass</h3>

The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.

In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.

The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

percentage by mass=\frac{mass of solute}{mass of solution}x100

<h3>This case</h3>

Because percent by mass indicates the ratio of solute to solution based on mass, if the sample has twice the mass of the first sample, the ratio remains constant.

So the percentage by mass is the same.

That is, the sample of pure lithium nitrate contains 7.99% lithium by mass.

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Learn more about percent by mass:

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If you are working on the part of 5-15 minutes, time-stamping (every 30 seconds) should start at.
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<h3>TIMESTAMPS</h3>

A timestamp is an indication (also called a marker) which tells us at what time / when the relevant text was spoken. They are represented in the format [HH:MM:SS]; where HH are hours, MM are minutes, and SS are seconds - from the beginning of the audio or video file.

There are different kinds of timestamps as below:

1. Periodic timestamps - Periodic timestamps appear at a consistent frequency. They can appear for every 15 seconds, 30 seconds, 1 minute, or 2 minutes.

2. Paragraph timestamps

3. Sentence timestamps

4. Speaker timestamps

Time stamping format used while transcribing audio files is:

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so 5th minute is [00:05:00]

If the 5 - 15 minute part of an audio has to be transcribed stamping should be started at [00:05:00]

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