In the aftermath of an intense earthquake, the earth as a whole "rings" with a period of 54 minutes. What is the frequency of this oscillation?
Express your answer in hertz.

are their multiple choices ?

explanation:

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

answera compound;