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mart [117]
3 years ago
12

The flow of electrical current is possible because electrons are...

Physics
2 answers:
e-lub [12.9K]3 years ago
8 0

A.

because atoms are always looking for neutrality within their nucleus and within their outer field

Nikitich [7]3 years ago
7 0
The answer is the letter A.
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True or False? Gases such as water vapor condense when they are *heated*.
scoundrel [369]

That statement is <em>false</em>.  

"Condense" is what a gas does when it turns into liquid, and that's something that happens when the gas is cooled, not heated.

4 0
4 years ago
Which statement describes an AC generator?
gregori [183]
AC (Alternating Current) generator is a device that produces an electromotive force.This generator produces alternating current. Alternating current  is electric current that changes its direction many times a second, at regular intervals. This is the type of current with which customers are supplied in the energy distribution network.
6 0
4 years ago
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The most energy-efficient way to send a spacecraft to the Moon is to boost its speed while it is in circular orbit about the Ear
jeyben [28]

Answer:

98.33 %

Explanation:

On an elliptical orbit, angular momentum will be conserved .

Angular momentum = I ω = mvR

So mv₁R₁ = mv₂R₂

= v₁R₁ = v₂R₂

where v₁ is velocity and R₁ radius in low orbit (perigee)and v₂ and R₂ is velocity and radius in high orbit ( apogee ).

Here R₁ = Radius of the earth , R₂ is distance between moon and earth.

R₁ / R₂ = 1/60

v₁ /v₂ = R₂ / R₁  = 60

v₂ / v₁ = 1 / 60

1 - (v₂ / v₁ ) = 1 -( 1 / 60)

(v₁ -v₂)/v₁ = ( 60-1 )/60

(v₁ -v₂)/v₁ x 100 = 5900/60 = 98.33 %

5 0
4 years ago
Sun *
Ludmilka [50]

Answer:

E

Explanation:

6 0
3 years ago
Suppose that instead of dropping the rock you throw it downwards so that its speed after falling 7 meters is 23.43 m/s. How much
Shkiper50 [21]

Answer:

3,298.1 Hz

Explanation:

Solution is attached

5 0
4 years ago
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