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Science help, please

Okay, so I'm currently studying about the waves theory. I have tendencies to jumble up the context, and I'm really confused about the types of waves.
.The 2 types of mechanical waves are: longitudinal and transverse.
.The 2 types of progressive waves are: longitudinal and transverse.
^I don't get this, and while searching each question on the web I got the exact same answers.
Also basically mechanical waves need a medium, if so how are transverse waves a part of mechanical waves since they don't need a medium, (the electromagnetic waves can pass through a vacuum).
Could someone please explain this to me, I've been through 2 science textbooks and they don't explain clearly, one mentions about progressive waves and the other one doesn't.
Original post by TheYearNiner


Thank you, I understood it a bit better. Still have a slight confusion though.
Original post by randomperson11
Thank you, I understood it a bit better. Still have a slight confusion though.

I dont think I cant help you any further but I wish you look so that you may find what ever you need to find :smile:

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