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uranmaximum [27]
3 years ago
7

Is energy matter? Is gravity matter? Why or why not

Physics
1 answer:
Alja [10]3 years ago
5 0

No, because the energy is the capacity for performing work. Gravity is the force that draws everything to the earth's center.

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Which is the correct equation for calculating the kinetic energy of an object ?
Andru [333]
Hello,

The answer is option B KE=1/2mv^2.

Reason:

In order to calculate the kinetic energy of a object you need to use option B which is the correct formula to find the kinetic energy.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit
3 0
3 years ago
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Which is most likely a covalent compound?<br><br> LiF<br> MgS<br> NH3<br> CaCl2
Artemon [7]

Answer:

NH₃

Explanation:

The compound that is covalent from the given choices is NH₃.

Covalent compounds are usually formed between two atoms with similar values of electronegativities such that the difference is very small or zero.

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  • Nitrogen and hydrogen forms stable configuration that are isoelectronic with noble gases by sharing their valence electrons.
  • The 3 hydrogen electrons are enough to make nitrogen isoelectronic with neon.
  • Also, the nitrogen with 3 lone pairs of electrons provides the bonding hydrogen with needed electrons to attain a structure similar to helium.
8 0
2 years ago
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An airplane travels directly from Washington, D.C., to Atlanta, Georgia, a distance of 850 km at a velocity of 425 km/h southwes
Sloan [31]

Answer:

obviously 2 hours cuz 850/425

Explanation:

4 0
3 years ago
You observe a distant galaxy. You find that a spectral line, resulting from an electron transition in hydrogen, is shifted from
alexandr1967 [171]

Answer:

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So when we see the light has shifted to the infrarred part of the spectrum, it means the source is traveling away from us, making the light waves we percieve streched and move from visible light to infrarred.

6 0
2 years ago
When two or more identical capacitors are connected in series across a potential difference?
OlgaM077 [116]
<span>When two or more identical capacitors (or resistors) are connected
in series across a potential difference, the potential difference divides
equally among them.

For example, if you have nine identical capacitors (or resistors) all
connected end-to-end like elephants in a circus parade, and you
connect the string to a source of 117 volts (either AC or DC), then
you will measure

(117v / 9)  =  13 volts

across each unit in the string.</span>
6 0
3 years ago
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