a- they do not need a medium to transfer energy
b- they travel faster
c-they are transverse waves
d- all of these
e- none of these
2006-10-07 09:09:27 · 8 answers · asked by Somanyquestions 1 in Science & Mathematics ➔ Physics
d.
Sound travels only in a medium and is a pressure wave. EM waves travel at the speed of light.
2006-10-07 10:12:25 · answer #1 · answered by Bill N 3 · 1⤊ 0⤋
See some of Maxwell work on electromagnetic waves it explain you why EM travel in spiral motion. From a two dimensional stand point it looks like they are transversed. THe answer is D
2006-10-07 16:21:21 · answer #2 · answered by ION-CONSTITUTION 2 · 0⤊ 0⤋
The difference is in the frequency in which they operate. Electromagnetic waves are in the inaudible frequency range, like micro-waves. Some say there is no wave associated with magnetism at all, but are actually 'charged particles' localized to near where they originate. Magnetic fields are believed to be made of 'gravitons' but I think it's only a theory right now. I don't believe a graviton has ever actually been observed in nature yet. Someone correct me if I'm wrong.
2006-10-07 16:19:46 · answer #3 · answered by The Oldest Man In The World 6 · 0⤊ 3⤋
it's A! and B!
EM waves are faster than sound waves and is not transverse waves and don't need atmosphere like sound waves.
2006-10-08 02:33:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋
d
2006-10-07 16:20:28 · answer #5 · answered by Anonymous · 1⤊ 0⤋
d
2006-10-07 16:13:17 · answer #6 · answered by rhino9joe 5 · 1⤊ 0⤋
The answer is d - all of these.
2006-10-07 16:16:14 · answer #7 · answered by Kevin H 7 · 2⤊ 0⤋
C
2006-10-07 16:14:06 · answer #8 · answered by Tinman 3 · 0⤊ 1⤋