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2 years ago

What current is used to power the Untied States power grid? O alternating current O direct current

Physics

2 answers:

QveST [7]2 years ago

4 0

Answer:

alternating

Explanation:

it was right on my quiz

Alina [70]2 years ago

3 0

Answer:

Alternating

Explanation:

It is alternating because it is easy to distribute long distance.

Direct current is found in batteries and have large voltage drop over distance.

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Relative to the positive horizontal axis, rope 1 makes an angle of 90 + 20 = 110 degrees, while rope 2 makes an angle of 90 - 30 = 60 degrees.

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the net horizontal force acting on the beam is

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$\sin(60^\circ) \bigg(R_1 \cos(110^\circ) + R_2 \cos(60^\circ)\bigg) - \cos(60^\circ) \bigg(R_1 \sin(110^\circ) + R_2 \sin(60^\circ)\bigg) = 0\sin(60^\circ) - mg\cos(60^\circ)$

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1 year ago

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2 years ago

What current is used to power the Untied States power grid? O alternating current O direct current​

What current is used to power the Untied States power grid? O alternating current O direct current