Alternating current is normally produced by a

Physics

1 answer:

aliina [53]4 years ago

3 0

Answer:

B) generator

Explanation:

Alternating current is a type of current that changes direction periodically which is produced by a generator. This generator consists of a magnet and a loop of wire which rotates in the magnetic field of the magnet.

Therefore, from the given question, alternating current is normally produced by a generator.

Option B is the correct answer

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What have we learned from the work of harlow shapley and others about the location of the sun in the milky way galaxy?.

marin [14]

We learned that We are in the disk of the Galaxy, about 5/8 of the way from the center.

<h3></h3><h3>What is the work of Harlow Shapley?</h3>

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There are many stars, grains of dust, and gas in the Milky Way. It is known as a spiral galaxy because, from the top or bottom, it would appear to be whirling like a pinwheel. About 25,000 light-years from the galaxy's nucleus, the Sun is situated on one of the spiral arms.

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to learn more about Harlow Shapley's original estimate go to - brainly.com/question/28145909

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2 years ago

Find the orbital speed v for a satellite in a circular orbit of radius R.Express the orbital speed in terms of G, M, and R.

AlekseyPX

<h2>Answer: $V=\sqrt{G\frac{M}{R}}$ </h2>

The velocity of a satellite describing a circular orbit is <u>constant</u> and defined by the following expression:

$V=\sqrt{G\frac{M}{R}}$ (1)

Where:

$G$ is the gravity constant

$M$ the mass of the massive body around which the satellite is orbiting

$R$ the radius of the orbit (measured from the center of the planet to the satellite).

Note this orbital speed, as well as orbital period, does not depend on the mass of the satellite. I<u>t depends on the mass of the massive body.</u>

In addition, this orbital speed is constant because at all times <u>both the kinetic energy and the potential remain constant</u> in a circular (closed) orbit.

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4 years ago

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11111nata11111 [884]

Answer:

u = 11.6 m/s

Explanation:

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$H=\dfrac{u^2\ sin^2\theta}{g}$