Two masses m, and m2 are suspended from pulleys as shown. You may assume that the pulleys and strings are light, and that there is no friction How do the two accelerations relate to each other? Give the value of a1/a2:

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?