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Mnenie [13.5K]
3 years ago
14

Oscillations of electricity and magnetism create ________________________ waves, which include visible light waves.

Physics
1 answer:
kaheart [24]3 years ago
4 0

Explanation:

radio waves, which include visible light waves.

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I believe <u>kinetic / potential</u>

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Is 250 000 miles from the earth to the moon" is a qualitative<br> Observation<br> TRUE<br> Or false
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True

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A car starts from rest and accelerates to 14 m/s in 2 seconds. What was its acceleration
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7m/s^2

Explanation:

using v=u+at

since the car started from rest, u=0 , v=14m/s t=2s

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4
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2 years ago
A long, current-carrying solenoid with an air core has 1800 turns per meter of length and a radius of 0.0165 m. A coil of 210 tu
Hoochie [10]

Answer:

The mutual inductance is  M  =  0.000406 \  H

Explanation:

From the question we  are told that

    The  number of turns per unit length  is  N =  1800

    The radius is  r = 0.0165 \ m

     The  number of turns of the solenoid is  N_s  =  210 \ turns

   

Generally the mutual inductance of the  system is mathematically represented as

       M  =  \mu_o  *  N *  N_s  *  A

Where A is the cross-sectional area of the system which is mathematically represented as

       A  =  \pi  *  r^2

substituting values

      A  =  3.142 *  (0.0165)^2

       A  =  0.0008554 \ m^2

also   \mu_o is the permeability of free space with the value  \mu_o  =   4\pi * 10^{-7} N/A^2

So  

      M  =  4\pi * 10^{-7}   *1800 *  210  *  0.0008554

      M  =  0.000406 \  H

3 0
3 years ago
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