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Gemiola [76]
3 years ago
9

What criteria do astronomers use to classify an object as a planet

Physics
1 answer:
AVprozaik [17]3 years ago
7 0
Orbits a Star.... gravity makes it spherical.
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How are the magnetic field lines near the south pole of a magnet affected when a second south pole is brought near it?
sergejj [24]

Answer:

c

Explanation:

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3 years ago
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Both acids and bases produce ions when dissolved in water. Propose a way to describe what
EleoNora [17]

Answer:

See explanation

Explanation:

Acids and bases contain ions that interact with water. According to the Arrhenius definition, acids are substances that produce hydrogen ion in water while bases are substances that produce hydroxide ion in water.

The pH scale is a graphic description of the hydrogen or hydroxide ion present in a sample. Since pH= -log[H^+], the higher the pH , the lower the hydrogen ion concentration and vice versa.

Similarly, pOH= -log [OH^-] , hence the more the OH^- concentration the lower the pOH.

However pH + pOH =14.

Thus the concentration of hydrogen or hydroxide ions present determines the pH of any solution.

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3 years ago
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How long does it take mercury to orbit the sun?
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That is called the "Revolution Period of a planet" and one year on mercury equals to 88 days as compared to Earth

In short, Your Answer would be 88

Hope this helps!
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3 years ago
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Please help. I will give brainliest to first good answer
Arturiano [62]
Answer: C). Light rays are bent by the water in the glass

It refracts the light
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The primary difference between a barometer and a manometer is
Nitella [24]

Answer:

a barometer is used to measure atmospheric pressure, and a manometer is used to measure gauge pressure.

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A barometer measures air pressure at any locality with sea level as the reference.

However, a manometer is used to measure all pressures especially gauge pressures. Thus, if the aim is to measure the pressure at any point below a fluid surface, a barometer is used to determine the air pressure. The manometer may now be used to determine the gauge pressure

The algebraic sum of these two values gives the absolute pressure.

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