A galaxy in the constellation Corona Borealis is moving away from the Earth.
The visible emission spectrum for the Sun is shown in Figure I below.
I
The lines are at wavelengths of 
, 
, 
, 
and 
. The compositions of the Sun and a star in the Corona Borealis galaxy are similar. On Figure II below, sketch the emission spectrum for the star in the Corona Borealis galaxy as observed from the Earth. No calculations are required.
II
The galaxy in Corona Borealis is moving away from the Earth at a speed of 
. Use information from (a) to calculate, in 
, the observed wavelength of the lowest visible energy emission for the star in the Corona Borealis galaxy.
.
