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PIT_PIT [208]
3 years ago
6

An atom or group of atoms that has a positive or negative charge is called

Physics
1 answer:
Ksenya-84 [330]3 years ago
8 0
It is called an ion(s)
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What do all group 2 elements have in common? They all gain two electrons to form a stable outer energy level. They form covalent
lora16 [44]
Group elements that will become +2 ions
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3 years ago
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The first jeans, made by Levi Strauss & Co., were invented in which year?
galina1969 [7]

Answer:

1873

Explanation:

The next time you see someone wearing a pair of Levi's® jeans, remember that these pants are a direct descendant of that first pair made back in 1873. That year, two visionary immigrants — Levi Strauss and Jacob Davis — turned denim, thread and a little metal into what has become the most popular apparel on earth.

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Why is physics used to study the heat absorbed by the ocean?
Wewaii [24]

Answer:

B

Explanation:

It absorbs gases, but also heat energy from the atmosphere, distributes them in its depths and thus slows down changes in the entire Earth system. The amount of energy absorbed by the ocean is therefore also an indication of the total heat absorbed by the planet.

6 0
2 years ago
A phonograph turntable rotating at 33 1 3 rev/min slows down and stops in 1.98 min. (Assume the turntable initially rotates in t
enyata [817]

Explanation:

photography presente in frame was of 11 meter thats why

6 0
3 years ago
Two point charges exert a 5.50 N force on each other. What will the force become if the distance between them is increased by a
vodomira [7]

Answer:

0.055 N

Explanation:

From coulomb's law,

F α 1/r²

F = k/r²

F₁r₁² = F₂r₂²......................... Equation 1

Where F₁ = Initial force, r₁ = initial distance, F₂ = Final force, r₂ = Final distance.

making F₂ the subject of the equation

F₂ = F₁r₁²/r₂²..................... Equation 2

Given: F₁ = 5.50 N.

Let: r₁ = x m, then r₂= 10x m

Substitute into equation 2

F₂ = 5.5(x²)/(10x)²

F₂ = 5.5x²/100x²

F₂ = 5.5/100

F₂ = 0.055 N.

Hence the force becomes 0.055 N

8 0
3 years ago
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