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padilas [110]
3 years ago
13

What is neccessary for a magnetic field to create electric current in a copper coil?

Physics
1 answer:
Viktor [21]3 years ago
6 0
A, Lenz' Law. There need to be a difference of flux, so if you use AC you will get a current too.
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En un m.A.S. La amplitud tiene un valor de 10 centimetros y el periodo es de 2 segundos calcular el valor de la velocidad de 0.8
Ivanshal [37]

Answer:

v1=18.46m/s

v2=29.8cm/s

Explanation:

We know that

A=10cm\\T=2s

the equation of the motion is

x=Acos(\omega t)\\

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Hence, we have that

x=10cm*cos(\pi t)\\

the speed will be

v=-\omega*Asin(\omega t)\\|v(0.8)|=|\pi*10cm*sin(\pi *0.8)|=18.46\frac{cm}{s}\\|v(1.4)|=|\pi*10cm*sin(\pi *1.4)|=29.8\frac{cm}{s}

hope this helps!

6 0
3 years ago
Which three of the following are characteristics of ionic bonding?
Lyrx [107]
Gains at least one nutrient
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1200kg car speeds up from 2 m/s to 6 m/s. How many times greater is the car's kinetic
Bezzdna [24]

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Explanation:

KE = 1/2mv²

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2 years ago
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