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zalisa [80]
3 years ago
10

Every sound is produced by vibrations. How does your voice produce sound?

Chemistry
1 answer:
OleMash [197]3 years ago
4 0
Vocal folds come togrther and as u exhale they vibrate and create volume
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True or false; when something heats up, New energy is created, and when something cool down, Energy is destroyed.
Ann [662]

Answer:

This is false.

Explanation:

This statement directly opposes the first law of thermodynamics which states that energy can neither be created nor destroyed, but can transfer from one source to another.

4 0
3 years ago
A balance was tested against a standard calibration mass with a certified value of 200.002 g and produced the following readings
wlad13 [49]

Answer:

Precise but not accurate.

Explanation:

We can tell the performance of the balance is precise, because the repeated measurements give values close to one another.

However, the performance of the balance is not accurate, as the mean value of the repeated measurements (195.587) is not close to the value considered as true (in this case the standard calibration mass with a certified value of 200.002 g).

7 0
3 years ago
Which of the following organism are most likely to show cospeciation?
Viktor [21]
The answer is A: fleas and cats.
3 0
3 years ago
One success of Johann Döbereiner's law of triads was that it organized most of the known elements into three-element groups base
jenyasd209 [6]
That statement is true

it was easy to organize 'all' the elements in a group of threes because back then they only knew about 15 - 20 elements

hope this helps
4 0
3 years ago
Read 2 more answers
When two clear, colourless liquids are mixed together, a yellow precipitate is formed. This is an example of a
Flura [38]

Answer:

Combining the two clear colorless liquids is a chemical change.

Explanation:

Because a different solid substance is formed. Tell students that a precipitate is an insoluble solid that forms when two solutions are combined and react chemically. Insoluble means that the solid will not dissolve.

3 0
3 years ago
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