Some chemistry principles are required to solve this challenge.
In this Fascinating Frequencies challenge, we will cover fluid dynamics. A perfect homogeneous sphere with radius 10 cm and mass 1 kg hits the middle of a pond of pure water on earth. It’s velocity is 1 m/s downward. The temperature of the pond is a uniform 20° celsius. The pond will begin to ripple. There are no animals in the pond to interfere with this. The challenge is to calculate the frequency of the ripples.