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Social Sciences 20 Online
OpenStudy (anonymous):

i have no idea please help All of the following statements about electromagnetic radiation are true except All electromagnetic radiation travels at the speed of light. All electromagnetic radiation can be considered a form of light. All electromagnetic radiation can be seen. All electromagnetic radiation travels in waves

OpenStudy (christian_10_):

I believe it's C.

OpenStudy (anonymous):

thank you

OpenStudy (joannablackwelder):

Yep, not all em radiation can be seen. Examples are radio waves, microwaves, x-rays, etc.

OpenStudy (christian_10_):

Your welcome!

OpenStudy (anonymous):

What is an HR diagram? A diagram showing the layers of a star. A diagram showing where stars can be found A graph used to study stars. A graph of a star’s changing shape. i say c

OpenStudy (christian_10_):

correct!

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