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inn [45]
3 years ago
15

Which statement describes how a covalent molecule would be formed? A) an atom of an element with atomic number 12 reacts with on

e oxygen atom B) an atom of an element with atomic number 8 reacts with two hydrogen atoms C) an atom of an element with atomic number 20 reacts with two fluorine atoms D) two atoms of an element with atomic number 11 react with one sulfur atom
Physics
2 answers:
Juli2301 [7.4K]3 years ago
7 0
<span>an atom of an element with atomic number 8 reacts with two hydrogen atoms 

</span>
Anton [14]3 years ago
3 0

The answer is letter B .

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Dmitrij [34]

Answer: 0

Explanation: Initial velocity is 0.

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This force involves the attraction between objects with mass. (2 points) i need it asap
aev [14]

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Gravitational Mass

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3) How far will 20 N of force stretch a spring with a spring constant of 140 N/m?
muminat

Answer:

7 meters, 2.8 meters

Explanation:

work done (nm) = force (n) * distance (m)

140= 20 * m

140/20 = m

m=7 meters

140= 50 * m

140/50 = m

m= 2.8 meters

4 0
2 years ago
What are three types of electromagnetic waves that are used to transmit information? What types of devices are used to receive e
MrMuchimi

Answer:

Three types of electromagnetic waves, used to transmit various information

Explanation:

A form of energy waves having both electric & magnetic fields are Electromagnetic waves. Three types -

Radio Waves - These have longest wavelengths & transmit data through radio, satellites, radar .

Micro Waves - These have shorter wavelengths & are used in cooking appliances & predicting weather.

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3 0
2 years ago
Fill in the blank. Consider the inverse square law: When light leaves a light bulb, it spreads out over more and more space as i
aliya0001 [1]

Answer:

Explanation:

Intensity of light is inversely proportional to distance from source

I ∝ 1 /r²  where I is intensity and r is distance from source . If I₁ and I₂ be intensity at distance r₁ and r₂ .

I₁ /I₂ = r₂² /r₁²

If r₂ = 4r₁ ( given )

I₁ / I₂ = (4r₁ )² / r₁²

= 16 r₁² / r₁²

I₁ / I₂ = 16

I₂ = I₁ / 16

So intensity will become 16 times less bright .

"16 times " is the answer .

8 0
3 years ago
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