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Arte-miy333 [17]
3 years ago
13

WILL CHOOSE BRAINLIEST!! what are electromagnetic waves!!??

Chemistry
1 answer:
Lerok [7]3 years ago
5 0
•A wave produced by the acceleration of an electric charge and propagated by the periodic variation of intensities of, usually, perpendicular electric and magnetic fields

In other words : They are radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves

They are produced by the motion of electrically charged particles.

I hope this helped ! :)
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Different measurements are expressed in different units. Choose the correct Sl units for the lo
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Answer:

The SI units for measuring the velocity of the car: meters per second (m/s)

The Sl units for measuring the acceleration of the car: meters per second squared  (m/s^2)

The SI units for measuring force:  Newton (N)

The SI units for measuring mass: kilograms (kg)

Explanation:

Système international (SI) or International System of Units consist of a list of unit measurement that mostly used by scientist. The scientist from a different country might use different unit that makes them have to convert the result of each other. The usage of the same unit measurement will help the scientist to read that publication easier, make it easier to share and discuss any topic. The unit used is metric since the decimal system also makes the conversion of a unit easier.  

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An element that has 2 core electrons and 3 valence electrons
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Answer:

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You can also know this by using electron configuration. Since you kow there are 5 electrons then you can use EC to find out where your element is. In this case it is: 1s2 2s2 2p1

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