I'm pretty sure its because the sun is farther away from earth so C
73130-26, S62.323A, W51.XXXA, Y93.61 that should help.
V final = (Mass x V initial) + (Mass x V initial) /m + m
V = (0.04 x 300) + ( 0.5 x 0 ) / 0.04 + 0.5
V = 22.2 m/s
Enzymes bind with chemical reactants called substrates