In which situation is mechanical energy converted to electrical energy?

Chemistry

2 answers:

zlopas [31]3 years ago

6 0

Answer:

I think the answer is a generator

Deffense [45]3 years ago

5 0

Answer:

The correct answer is option D.using a generator

Explanation:

An electric generator is a rotary machine capable of producing electrical energy by transforming mechanical energy. In other words, a generator is an electric machine that transforms mechanical energy into electrical energy, thanks to the interaction of its main components: the rotor (moving part) and the stator (static part). When an electric generator is in operation, one of the two parts generates a magnetic flux (acts as an inductor) so that the other transforms it into electricity (acts as induced).

That is, the mobile rotor or inductor generates the magnetic field on which the operation of the generator is based, while the stator or fixed armature generates the electrical energy.

So, the correct answer is option D.using a generator

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a student balanced the chemical equation for the reaction of magnesium with oxygen by writing Mg + O2 ----> MgO2. What is wro

egoroff_w [7]

Answer:

Explanation:

Magnesium when it oxidizes has a valence of 2.

Oxygen, when it mixes with something, has a valence of - 2

So Mg and O2 will form something, but what? The answer is MgO

Mg + O2 ===> MgO

To balance this equation, you need 2 Magnesiums on the right and 2 Oxygens also on the right. The left will need a two Magnesiums.

The balanced equation will be

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6 0

4 years ago

A pressure of 745 mm hg equals select one:

Flura [38]

As we know that,

1 mm Hg = 1 torr
So,
745 mm Hg = X

X = (745 mm Hg × 1 torr) ÷ 1 mm Hg

X = 745 torr

Also,
1 mm Hg = 133.325 Pa
So,
745 mm Hg = X

X = (745 mm Hg × 133.325 Pa) ÷ 1 mm Hg

X = 99327 Pa

Result:
Option-A (745 torr) is the correct answer.

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GREYUIT [131]

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Brrunno [24]

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WITCHER [35]

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