Answer:
The magnetic field is
T
Explanation:
Given:
Velocity of electron 
Electric field 
The force on electron in magnetic field is given by,
......(1)
The force on electron in electric field is given by,
......(2)
Compare both equation,

Here 



T
Therefore, the magnetic field is
T
The appropriate value in blank given is Δf = 5.5 x
Hertz.
We have vibrational - rotational spectrum Hydrochloric Acid.
We have to investigate the estimated separation between absorption peaks and fill the blank.
<h3>What is vibrational - rotational spectrum ?</h3>
Rotational–vibrational spectroscopy is a branch of molecular spectroscopy. It deals with the infrared and Raman spectra of molecules in the gaseous phase.
According to the question -
The estimated separation between absorption peaks in the vibrational-rotational spectrum of HCl is denoted by Δf and is equal to -
Δf = 5.5 x
Hertz
Hence, the appropriate value in blank given is Δf = 5.5 x
Hertz.
To learn more about vibrational-rotational spectrum, visit the link below-
brainly.com/question/18403840
#SPJ4
Its during REM sleep. hope this helped
Answer:
Personally I don't believe aliens exist maybe they do who knows but i don't think so.
Explanation: