What is the strength of the magnetic field

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Why do atoms emit energy of only specific wavelengths