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2 years ago

Si la frecuencia de una onda de 12 Hz y su longitud es de 4 metro ¿cuál será su velocidad?

Physics

1 answer:

ella [17]2 years ago

7 0

Answer: srry I don’t understand that language

Explanation:

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A circuit has a current of 2.4 A. The voltage is increased to 4 times its original value, while the resistance stays the same. H

9966 [12]

Answer:

Resistance will become 4 times the previous value

Explanation:

We have given current in the circuit i = 2.4 A

According to ohm's law current in the circuit is given by $I=\frac{V}{R}$

So $2.4=\frac{V}{R}$ ............eqn 1

Now voltage is increased to 4 times so new voltage = 4 V

And current in the circuit is same as 2.4 A

We have to fond the resistance so that after increasing voltage current will be same

So $2.4=\frac{4V}{R_{unknown}}$ ..........eqn 2

Dividing eqn 1 and 2

$1=\frac{V}{R}\times \frac{R_{unkown}}{4V}$

$R_{unknown}=4R$

So resistance will become 4 times the previous value

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PLEASE I NEED HELP ASAP!!!!!!!!!!

max2010maxim [7]

tooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

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