If Spring 1 (k, =200 N/m) is connected in series with spring 2, the total spring constant is 160 N/m, the value of k is: O a. 200 N/m O b. 1600 N/m Oc. 800 N/m O d. 400 N/m Question 20 What is the period of oscillation of a simple pendulum whose length is 30 cm Not yet answered O a. 0.53 seconds O b. 2.5 seconds O . 1.1 seconds O d. 10.8 seconds Marked out of 1.00 P Flag question er