Physics, 22.11.2019 06:31 HOBA6

(ufsc) certa substância radioativa, que se desintegra uniformemente ao longo do tempo , tem sua quantidade ainda n? o desintegrada , após t anos, dada por m(t) = mg. 2 elevado 1_20 em que mg representa a quantidade inicial dessa substância, qual é , aproximadamente, a porcentagem da quantidade ainda n? o desintegrada , apos 40 anos em relaç? o a quantidade inicial mg? r: 25% mas quero a resoluç? o

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(ufsc) certa substância radioativa, que se desintegra uniformemente ao longo do tempo , tem sua quan...

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