An air-track glider attached to a spring oscillates with a period of 2.70 s . At t = 0 the glider is 5.10 cm left of the equilibrium position and moving to the right at 13.7 cm/s .

What is the phase, expressed in degrees, at each of three different times: the first time is one-third of a period, t = 0.9000 s ; the second time is two-thirds of a period, t = 1.800 s ; and the third time is one full period after the clock starts, t = 2.70 ss ? Give your answers for the phase in degrees. Give your answers as an ordered triple, with the phase at 0.9000 s first, followed by a comma, followed by the phase at 1.800 s , followed by a comma, followed by the phase at 2.70 s . Give each of your answers as an angle in degrees.