3 years ago

What produces light and all other electromagnetic waves?

1 answer:

5 0

your answer i believe would be c because light waves, mechanical waves, exc. all carry charged particals.

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stira [4]

Part a

Answer: 17.58 km/h

$Average speed=\frac{Total\hspace{1mm}Distance}{Total\hspace{1mm}Time}$

Total Distance =10 km

Total time =0.5689 h

$\Rightarrow Average speed=\frac{10\hspace{1mm}km}{0.5689\hspace{1mm}h}=17.6 \hspace{1mm}km/h$

Part b

Answer: 17.626 km/h

$Average speed=\frac{Total\hspace{1mm}Distance}{Total\hspace{1mm}Time}$

Total Distance =42.195 km

Total time =2.3939 h

$\Rightarrow Average speed=\frac{42.195\hspace{1mm}km}{2.3939\hspace{1mm}h}=17.626\hspace{1mm}km/h$

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luda_lava [24]

Volume of a block can be found by: length × width × height. So:

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Mkey [24]

An LED is useful because when a current passes through it, it gives out light.

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Dimas [21]

Answer:

4. kinetic energy

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3 years ago

nikklg [1K]

Answer:

Explanation:

How many digits are in front of the decimal in scientific notation?

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3 years ago