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Dmitriy789 [7]
3 years ago
13

How is an oscilloscope used to tune a musical instrument?

Chemistry
1 answer:
sp2606 [1]3 years ago
4 0
It uses the voltages and sound freq. in the air to measure the wave lengthths
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The basic principle in balancing a chemical equation is to ______. hints
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Answer:  obey the "law of conservation of mass".
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Prform the following operation and express the answer in scientific notation 6.0 x 10^3-2.310^3
Marrrta [24]

The value 6.0 x 10^3- 2.3 × 10^3 in scientific notation is 3.7 × 10^3.

<h3> What is scientific notation?</h3>

Scientific notation is a way to write very large or very small numbers so that they are easier to read and work with.

You express a number as the product of a number greater than or equal to 1 but less than 10 and an integral power of 10 .

<h3>Why it is used? </h3>

There are two reasons to use scientific notation.

  • The first is to reveal honest uncertainty in experimental measurements.
  • The second is to express very large or very small numbers so they are easier to read.

Given,

= 6.0 x 10^3- 2.3 × 10^3

= (6.0 - 2.3) × 10^3

= 3.7 × 10^3

Thus, we find that the value 6.0 x 10^3- 2.3 × 10^3 in scientific notation is 3.7 × 10^3.

learn more about scientific notation :

brainly.com/question/18073768

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3 0
2 years ago
Which of the following is an anion?Al3+ Mg2+ O2– H Save
JulijaS [17]
An anion is an ion with a negative charge. The minus sign, when attached to the end of an ionic compound, indicates that this has a negative charge, while a plus sign indicates a positive charge. 

O2- is the only compound listed that satisfied this. It is the anion.
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<span>Fe(NO3)2
The NO3 part is a poly-atomic ion with total charge -1.
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So to find N, we just need an oxidation number that balances out with 3(-2) to get -1 (the total charge of the ion)</span>
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BRAINLIEST IF CORRECT
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He should avoid using

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