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murzikaleks [220]

3 years ago

7

Describe two examples of how humans use electromagnetic waves.

2 answers:

Alex73 [517]3 years ago

5 0

Electromagnetic waves are used in everyday life. You are looking at your computer screen right now. The light that is coming off of the screen is visible light, a form of electromagnetic radiation. Electromagnetic waves are also used to send information. For example, AM or FM radios are radio waves that transfer sound information to your local radio.

cricket20 [7]3 years ago

4 0

We used electromagnetic waves in Cell Phones and Radios as well as Microwaves!! Hope that helps!!

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NeX [460]

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now we will have

$\frac{\lambda}{2} = \frac{yd}{L}$

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y = 0.20 m

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$\frac{\lambda}{2} = \frac{0.20\times 2.4}{10}$

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A compact car, mass 660 kg, is moving at 1.00 ✕ 102 km/h toward the east. The driver of the compact car suddenly applies the bra

Maslowich

Answer: $59.43\times 10^3 kg-m/s$

Explanation:

Given

mass of car $m=660 kg$

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Time taken to stop $t=2.1 s$

Force exerted $F_{avg}=4.8\times 10^3 N$

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negative Sign indicates that impulse is imparted opposite to the direction of motion

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