Multiple Choice
A 20-kg mass is placed on a horizontal frictionless surface and then connected by two springs with spring constants k1 = 5.0 N/m and k2 = 3.0 N/m to walls as shown in the figure.What is the period of oscillations for the 20-kg mass if it is displaced slightly to one side? 
A) 2.5 s
B) 7.0 s
C) 9.9 s
D) 14 s
E) 20 s
Correct Answer:

Verified
Correct Answer:
Verified
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