A uniform spring with k = 8600 N/m is cut into pieces I and 2 of un-stretched

Question:

A uniform spring with k = 8600 N/m is cut into pieces I and 2 of un-stretched lengths L1 = 7.0 cm and L2 = 10 cm. What are?
(a) k1 and
(b) k2? A block attached to the original spring as in Figure oscillates at 200 Hz. What is the oscillation frequency of the block attached to?
(c) Piece 1 and
(d) Piece 2?