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Ganezh [65]
3 years ago
9

Why does alternating current change direction 50 to 60 times per second?

Physics
2 answers:
fomenos3 years ago
7 0

A) because it is produced by a generator that changes current direction as it spins Brainliest please


mars1129 [50]3 years ago
6 0
An alternating current changes position 50 to 60 times per second due to the changing charges at the ends of the wires. As the charges change from (+) to (-) and vice versa, the electrons in the wire change direction according to its attraction and repulsion from the charges. Whether a country uses 50 or 60 depends on its electrical system.
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99

Explanation:

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A ball is thrown vertically upwards from the edge of the cliff and hits the ground at the base of the cliff with a speed of 30 m
olya-2409 [2.1K]

To solve this problem we will apply the linear motion kinematic equations. From the definition of the final velocity, as the sum between the initial velocity and the product between the acceleration (gravity) by time, we will find the final velocity. From the second law of kinematics, we will find the vertical position traveled.

v = v_0 -gt

Here,

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Now the position can be calculated as,

y = h +v_0t -\frac{1}{2}gt^2

When it has the ground, y=0 and the time is t=4s,

0 = h+(9.2)(4)-\frac{1}{2} (9.8)(4)^2

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3 years ago
In 1-2 sentences, explain why many people rely on radio broadcasts when transmitting information during storms and emergencies d
Aloiza [94]

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Hoped this helped!

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