Wavelength is the distance between successive trough or crest of a wave. Wavelength is inversely proportional to frequency. This means the shorter the wavelength the higher the frequency .The S.I unit of wavelength is meters.
Wavelength can be represented with a Greek symbol known as lambda (λ).
The formula below can be use to represent wavelength .
As the first astronaut throws the ball, lets assume it goes with v velocity and the mass of the ball be m the momentum comes out be mv, thus to conserve that momentum the astronaut will move opposite to the direction of the ball's motion with the velocity mv/M (where M is the mass of the astronaut).
