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Afina-wow [57]
3 years ago
9

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Physics
2 answers:
Natasha_Volkova [10]3 years ago
7 0

Ok srry bout last time but the answer is A) kelvin: time the reason is because everything else is a SI. Hope this helps and TURTLE

Diano4ka-milaya [45]3 years ago
4 0
Im not sure but i think its a or b im pretty sure
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An investigator collects a sample of a radioactive isotope with an activity of 490,000 Bq.48 hours later, the activity is 110,00
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Answer:

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Explanation:

Given that:

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