It was found that a 20 gram mass hanging from a particular spring had an oscillation period of 1.2 seconds. (a) When two 20 gram masses are hung from this spring, what would you predict for the period...

It was found that a 20 gram mass hanging from a particular spring had an oscillation period of 1.2 seconds.

(a) When two 20 gram masses are hung from this spring, what would you predict for the period in seconds? Explain

briefly.

(b) When one 20 gram mass is supported by two of these vertical, parallel springs (Figure 4.57), what would you predict

for the period in seconds? Explain briefly.