Question Number 46998 by OTCHRRE ABDULLAI last updated on 03/Nov/18
$${In}\:{physics}\:{how}\:{do}\:{we}\:{find}\: \\ $$$${average}\:{half}-{life}? \\ $$$$ \\ $$$${please}\:{i}\:{need}\:{help} \\ $$
Answered by peter frank last updated on 03/Nov/18
$$\mathrm{Average}\:\mathrm{life}\:\mathrm{T}_{\mathrm{av}} =\frac{\mathrm{sum}\:\mathrm{of}\:\:\mathrm{lives}\:\mathrm{of}\:\mathrm{all}\:\mathrm{atoms}}{\mathrm{Total}\:\mathrm{number}\:\mathrm{of}\:\mathrm{original}\:\mathrm{atoms}\left(\mathrm{N}_{\mathrm{0}} \right)} \\ $$
Commented by OTCHRRE ABDULLAI last updated on 03/Nov/18
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{mr}\:\mathrm{Frack}\:\mathrm{for}\:\mathrm{your}\: \\ $$$$\mathrm{help} \\ $$