How high or low are the crest and trough of a wave?

Research the neutrino using the internet and report your findings. in a nuclear decay, the nucleus of an atom splits apart. larger particles can be detected and their masses and velocities can be recorded. explain how the existence and properties of the neutrino could be predicted using the conservation laws.

Idon’t quite understand this problem

In a system, when potential energy decreases, then entropy also decreases. true false