An alpha particle has mass m = 6.64×10−27 kg and a gold nucleus has mass M = 2.32×10−25 kg. If K = 15.0 MeV then what is the speed V as a fraction of c, and what proportion of the original energy is transferred to the gold nucleus?

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.

F  you double the  force, you double the acceleration, but  if  you double the  mass, you velocity. all bodies accelerate at the  same  rate regardless of size or  mass.

Answer a, i don't feel like going into detail on this one because of how long that read was. water goes whoosh moving through the turbines to turn them and convert the energy of these mechanisms into electrical energy :

What is meant to happen is