Half-life and more for exponential decay (pottassium-42)

View full question and answer details: https://www.wyzant.com/resources/answers/588798/the-radioactive-element-potassium-42-decays-exponentially-and-follows-a-t-a?utm_source=youtube&utm_medium=organic&utm_campaign=aae_video Question: The radioactive element potassium-42 decays exponentially, and follows A(t)=Aoe^-0.56t a) What is the half-life?b) If you start with 1000 mg of potassium-42, how much will be left after 12 hours?c) If you start with 1000 mg of potassium-42, how long until only 200 mg remains? ------------------------ Answered By: Doug C. Math Tutor with Reputation to make difficult concepts understandable More information: https://www.wyzant.com/Tutors/AZ/Mesa/8143904/?utm_source=youtube&utm_medium=organic&utm_campaign=aae_video ------------------------ Written Explanation: URL to the Desmos graph referenced in the video:https://www.desmos.com/calculator/dpjbh8levtSelect the above link, right-click, and choose go to... See full answer: https://www.wyzant.com/resources/answers/588798/the-radioactive-element-potassium-42-decays-exponentially-and-follows-a-t- #answer-?utm_source=youtube&utm_medium=organic&utm_campaign=aae_video ------------------------ About: Wyzant Ask an Expert offers free answers to your toughest academic and professional questions from over 80,000 verified experts. It’s trusted by millions of students each month with the majority of questions receiving an answer within 1 hour of being asked. If you ever need more than just an answer, Wyzant also offers personalized 1-on-1 sessions with experts that will work with you to help you understand whatever you’re trying to learn. Ask your own question for free: https://www.wyzant.com/resources/answers/ask?utm_source=youtube&utm_medium=organic&utm_campaign=aae_video Find a tutor for a 1-on-1 session: https://www.wyzant.com?utm_source=youtube&utm_medium=organic&utm_campaign=aae_video Subscribe to Wyzant on YouTube: https://www.youtube.com/subscription_center?add_user=wyzant