According to the definition of power, a powerful person is able to do which of the following?
a. lift heavy objects
b. do less work in more time
c. do more work in less time
d. exert a larger force for a longer time

The mass of a muon is 207 times the electron mass; the average lifetime of muons at rest is 2.21 μs. in a certain experiment, muons moving through a laboratory are measured to have an average lifetime of 7.04 μs. for the moving muons, what are (a) β (b) k, and (c) p? the rest energy of the electron is 0.511 mev.

Which notation is used to represent an alpha particle? a. b. c. d.

How is zig zagging a form of acceleration?