Answer:
Seismic waves are mechanical waves because they travel through the medium of the Earth.
Explanation:
Impulse is the integral of a force, F.
Hope this helps.
(Please mark this brainliest, I would really appreciate it) Thanks!
I would say Emotional health. Just because it is more sensable
Answer: 7.5 rev/s
Explanation:
We are given the angular velocity 
a helicopter's main rotor blades:
However, we are asked to express this in the International Systrm (SI) units. In this sense, the SI unit for time is second (
):
The intensity of an electromagnetic wave increases with the field strength.
