The amount of a radioactive isotope present in a certain sample at time t is given by A(t) = 500e^-0.02828t grams, where t years is the since the initial amount was measured. How long will it take for the amount of the isotope to equal 317 grams

Wait what do u mean this doesn’t make sense

This is what i found on google “kinetic energy. energy is transferred from one object to another when a reaction takes place. energy comes in many forms and can be transferred from one object to another as heat, light, or motion, to name a few. this energy would be in the form of motion, with the person lifting the blue ball to a higher level.” i hope this you