help i will medal and fan the first one

Question

heathero · Answer

what is the question

anonymous · Answer

here

gottennis121 · Answer

If you think about it, for #1, Mechanical waves require a medium, such as air, to travel through. An example of a mechanical wave is a sound wave, which requires air to travel. Electromagnetic waves do not need a medium to travel through, as they travel through radiation. An example of an electromagnetic wave is ultraviolet light, which can even travel through the empty vacuum of space.

gottennis121 · Answer

Maybe this site could help you for the second one. http://www.edinformatics.com/math_science/electromagnetic_spectrum.htm

gottennis121 · Answer

#3 - Microwaves and X-rays have different wavelengths and frequencies. Microwaves fall between infrared radiation and above radar radiation. X-rays fall above ultraviolet radiation and below gamma ray radiation. Visible light falls between infrared and through ultraviolet. Credit: http://www.almanac.com/fact/what-is-the-difference-between-microwaves-and

heathero · Answer

mechanical needs air to travel through but electromagnetic waves do not
radio waves
 X-rays have greater frequency than microwaves.

gottennis121 · Answer

Please no direct answers @HeatherO

heathero · Answer

sorry

gottennis121 · Answer

It's ok. Just a reminder. :)