Answer:
Time period, 
Explanation:
We have,
The frequency of an FM radio station is 89.3 MHz.
It is required to find the period of the wave.
The reciprocal of frequency is called time period of a wave. It can be given by :
So, the period of the wave is 
.
Answer:
You can make a horizontale transverse by moving a slinky vertically up and down!
Explanation:
Metals, especially iron, have this form of electron cloud around it. When it's placed in a magnetic field these electrons line up
I think because there is only one way to go
Answer:
The ampere was chosen as a base unit, because it is easily measured whereas the coloumb is not. Interestingly, there is a move a foot to redefine the ampere (which will remain a base unit) in terms of the fundamental charge on an electron (not in terms of coulomb).
Explanation:
