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timofeeve [1]
3 years ago
8

Penetrative power of electromagnetic waves

Physics
1 answer:
Tems11 [23]3 years ago
8 0

is there more to this? if so i would love to help you!!

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Which of the following best describes a wave moving through a medium?
bezimeni [28]

Answer:

A

Explanation:

The particles of the medium don't travel along with the wave.  and I also just did this question

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2 years ago
What will not affect strength of a electromagnet?
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The main factors that affect the strength of an electromagnet are: Number of turns on the coil of wire around the core. Strength of the current applied. The material of the coil.

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Can i get 5 example of the 2nd law of motion
MAVERICK [17]

Answer:

If you use the same force to push a truck and a car, the car will have more acceleration than the truck because the car has less mass.

It is easier to push an empty shopping cart than a full one, because the full shopping cart has more mass than the empty one. This means that more force is required to push the shopping cart.

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Suppose two people are walking and among the two people, if one is heavier than the other, then the one weighing heavier will walk slower because the acceleration of the person weighing lighter is greater.

When riding a bicycle, the bicycle acts as mass and our leg muscles pushing on the pedals of the bicycle is the force.

Explanation:

5 0
2 years ago
An electromagnetic wave with frequency 65.0hz travels in an insulating magnetic material that has dielectric constant 3.64 and r
torisob [31]
Ans: Intensity = I = 5.8 * 10^{-8} W/m^2

Explanation:
First you need to find out the speed of Electromagnetic wave:

Since
v = \sqrt{ \frac{1}{\mu\epsilon} }


v = \sqrt{ \frac{1}{\mu_r\mu_ok\epsilon_o} }
\mu_r = 5.18 \\
\mu_o = 4 \pi * 10^{-7} \\
k = 3.64 \\
\epsilon_o = 8.85 * 10^{-12}

Plug in the values:
v = \sqrt{ \frac{1}{(5.18)(4\pi*10^{-7})(3.64)(8.85*10^{-12})} }
v = 6.9 * 10^7 m/s

Now that we have "v", we can use the following formula to find the intensity of wave:

I =  \frac{k\epsilon_o*v*E_{max}^2}{2}

I =  \frac{(3.64)(8.85*10^{-12})
*(6.9*10^7)*(7.20*10^{-3})^2}{2}

Intensity = I = 5.8 * 10^{-8} W/m^2

4 0
3 years ago
Help My please………………….
pantera1 [17]

Answer: don't know sorry

Explanation:

5 0
2 years ago
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