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Ratling [72]
2 years ago
9

Quanto tempo deve ficar ligado um ferro eletrico de 1000 w para que tenha o mesmo consumo de energia que um chuveiro de 4400 w q

ue fica ligado 10 minutos
Physics
1 answer:
Cerrena [4.2K]2 years ago
8 0

Answer:

Thus, the time for the first lamp is 44 minutes.

Explanation:

Power of first lamp, P' = 1000 W

Power of second lamp, P'' = 4400 W

time for second lamp, t'' = 10 minutes

Let the time for first lamp is t'.

As the energy is same, so,

P' x t' = P'' x t''

1000 x t' = 4400 x 10

t' = 44 minutes

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A truck of mass 200kg rests on an inclined plane hindered from rolling down the surface by a storing sprint whose force constant
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1.92 J

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From the question given above, the following data were obtained:

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Force (F) =?

F = m × g

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F = 1960 N

Next we shall determine the extent to which the spring stretches. This can be obtained as follow:

Spring constant (K) = 10⁶ N/m

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Extention (e) =?

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1960 = 10⁶ × e

Divide both side by 10⁶

e = 1960 / 10⁶

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Spring constant (K) = 10⁶ N/m

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