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dedylja [7]
4 years ago
8

The voltage across the input terminals of a transformer is 120 V. The primary has 25 loops and the secondary has 50 loops. The v

oltage the transformer delivers is ________.
Physics
1 answer:
saw5 [17]4 years ago
5 0

Answer:

240 V

Explanation:

Vp = 120 V

Np = 25

Ns = 50

Vs = ?

Vs / Vp = Ns / Np

Vs / 120 = 50 / 25

Vs / 120 = 2

Vs = 240 V

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RSB [31]

Answer:

4.02 km/hr

Explanation:

5 km/hr = 1.39 m/s

The swimmer's speed relative to the ground must have the same direction as line AC.

The vertical component of the velocity is:

uᵧ = us cos 45

uᵧ = √2/2 us

The horizontal component of the velocity is:

uₓ = 1.39 − us sin 45

uₓ = 1.39 − √2/2 us

Writing a proportion:

uₓ / uᵧ = 121 / 159

(1.39 − √2/2 us) / (√2/2 us) = 121 / 159

Cross multiply and solve:

159 (1.39 − √2/2 us) = 121 (√2/2 us)

220.8 − 79.5√2 us = 60.5√2 us

220.8 = 140√2 us

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7 0
3 years ago
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valentina_108 [34]

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There ya go !

:) hoping this helped ya out

5 0
3 years ago
What is the Unit used to measure voltage
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The derived unit for voltage is named volt.
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