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ozzi
3 years ago
9

A transformer is used to change: 1) power 2) frequency 3) capacitance 4) none of the above

Physics
2 answers:
tangare [24]3 years ago
8 0

4)none of the above.

A transformer is an electrical device  that allows to increase or decrease from one voltage level to another in an AC circuit while conserving the power.  

It is basically composed of two coils magnetically coupled in a core of ferromagnetic material increasing its permeability and effectiveness.

kicyunya [14]3 years ago
8 0

Answer: None of the above

Explanation:

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Explanation:

Given that

mass of the fly, m = 0.55 g = 0.55*10^-3 kg

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We know that the Kinetic Energy is that energy that an object, in this case, the fly, possesses due to its motion.

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If we substitute the values in the relation, we have,

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Thus, the fly would need a speed of 16.6 km/s in order to have a Kinetic Energy of 7.6*10^4 J

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