Would you please solve it real quick, that will be helpful and appreciated. Thank you. I will give you a good feedback too.

The graph shows a position vs time graph for a mass oscillating on a spring on a horizontal frictionless surface. (a) If m = 0.040 kg what is the spring constant k? (b) Write the equation for the position x as a function of time. (c) If the amplitude were doubled, what would happen to the maximum veocity of the mass? (d) If you came along and pushed on the mass at a same frequency it was oscillating at (and at the right time) what would happen?" x (cm) 10 4 -10