A 0.50-kg mass is hooked to two springs as shown in the diagram below. The mass slides without friction, and the spring constant of ONE spring is 15.0 N/m. The mass is given a push, so that its velocity at the equilibrium point (in the middle) is 0.16 m/s.

(A) With what frequency does the mass oscillate back and forth?
(B) What is the total energy of the system?
(C) What is the amplitude of oscillation?

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