Answer:
require a medium to propagate
Explanation:
this is because electromagnetic waves can travel through vacuum at the speed of 3.0 x 10^8 m/s
because they don't need particles to transfer energy
hope this helps
To find the speed you multiply the wavelength and the frequency together.
wavelength = 8mm =

m = 0.008 m
frequency = 14 Hz
speed = 0.008m * 14 Hz = 0.112 m/s
The temperature rise in the copper is. I think its 0.393
Answer:
Layers:
Crust-lithosphere, mesosphere, asthenosphere
Mantle-upper and lower mantle
Core- Inner and outer core
Explanation:
Hope this helps!