A radioactive plutonium nucleus is split up into its components. The difference in mass between the nucleus and its components (mass defect) is found to be 1.55 x 10^-3 u. a) calculate the energy equivalent in terms of MeV.
b) express the energy obtained in terms of joules.

Fill in the blank. the number of each type of element in the compound (other than 1) is represented by a small number to the right of the element symbol.

What is the length x of the side of the triangle below? (hint: use the cosine function)

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?