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Af = Ao (1/2) ^ t/h
Af = 200 (1/2) ^ 10/3 i cant solve from here
punch it in the calculator. i got 0.07; to the nearest hundredth
the answer is 19.84 mg
i got the answer too but i forgot how i did it
srry i know only grade 8 maths
h is the Planck's constant ryt ?
h is the half life period
half life means, it reduces to half in that period. So, from 200mg it goes to 100 mg in 3 years. In 6 years, it goes to 50 mg. In 9 years, it goes to 25 mg. In 10 years, it goes to.....that is the part of the equation I am not clear on (too long ago and too late/tired to recall).
Try 25mg to the power of 2/3. Is that 19.84mg? I don't have scientific calculator.
exactly but i gotta get the number 19.84. I got all the values just need to know how to put it in and no it doesnt work
i got it. .
punch in the calculator the first equation u've given
@Jerwyn: how did you do it `:O
find the cube root of .5 to tenth power, then multiply to 200
My value is correct.
200 times (1/2) to the power of 10/3. It gives you 19.84.
First find 0.5 to the power of 3.333333. Then multiply by 200.