A longitudinal wave that carries more energy has particles that are

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

The identities of substances are the same before and after which type of change