Frequency is defined as the number of waves per second. In this machine 25 waves pass in one second.
We need to calculate the number of waves that pass a particular point during one second.
During 2 seconds -25 waves
Therefore in one second - 25/2 = 12.5 waves/s.
1 wave per second has the unit Hertz (Hz)
Therefore answer is 12.5 Hz
The number of protons would be equivalent to the number of electrons if the net charge on the atom is 0.
Hello.
The answer i believe would be sodium.
Have a great day.
