Physics, 04.12.2019 07:31 InvictusPain4777
Electromagnetic and mechanical waves both transfer energy. how is an electromagnetic wave different from a mechanical wave?
question 4 options:
a. an electromagnetic wave has frequency, and a mechanical wave does not.
b. an electromagnetic wave is made of atoms, and a mechanical wave is not.
c. an electromagnetic wave can travel in a vacuum, and a mechanical wave cannot.
d. electromagnetic waves have frequencies that never change, and mechanical wave frequencies change.
Answers: 1
Physics, 21.06.2019 19:30, ggdvj9gggsc
A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
Answers: 1
Physics, 21.06.2019 23:50, george27212
The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory
Answers: 2
Physics, 22.06.2019 02:30, erinolson07cats
The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?
Answers: 3
Electromagnetic and mechanical waves both transfer energy. how is an electromagnetic wave different...
Computers and Technology, 01.05.2021 03:00
Chemistry, 01.05.2021 03:00
Mathematics, 01.05.2021 03:00