The mechanical system is determined by
adding the potential'and kinetic
energy together.
)
energy in a

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;