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Margarita [4]
3 years ago
5

A student is instructed to design a device that can allow one user to hear a voice of another surer a distance of 5 kilometers w

hich statement describes the most applicable basic design concept
Chemistry
1 answer:
Scorpion4ik [409]3 years ago
6 0

Answer:

A device designed to transmit electromagnetic waves through the air should  be developed.

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Which energy stored between plates of capacitor?
Mrac [35]

Answer: Electric energy

Explanation: Electrical energy is stored between plates in electric field

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3 years ago
1. A dining hall had a total of 25 tables-some long rectangular tables and some round
TEA [102]

x = 20 long tables

y = 5 round table

Explanation:

We have the following system of equations:

x + y = 25

8x + 6y = 190

From the first equation we have:

x = 25 - y

And we replace x in the second equation:

8(25 - y) + 6y = 190

200 - 8y + 6y = 190

200 - 2y = 190

200 - 190 = 2y

10 = 2y

y = 5

Now we insert the value of y in the next equation:

x = 25 - y

x = 25 - 5

x = 20

Learn more about:

system of equations

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3 years ago
Red giant stars defination​
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Answer:

A red giant is a luminous giant star of low or intermediate mass in a late phase of stellar evolution. The outer atmosphere is inflated and tenuous, making the radius large and the surface temperature around 5,000 K or lower.

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3 years ago
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The electron configuration for aluminum (Al) is shown below:
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It is the third choice

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In terms of valence electrons, explain why metals form positive ions.
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Answer:

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Metal elements form positively charged ions called cations because they are located on the left side of the periodic table These elements all have valence electrons in an s orbital. These electrons are relatively easy for the atom to lose to achieve a stable octet of electrons in its outermost energy shell.

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