If the mass of the original sample of Galium-68 is 10 mg, then . . .
== After one half-life, (1/2)(10 mg) = 5 mg remain
== After the second half-life, (1/2)(5 mg) = 2.5 mg remain
== After the third half-life, (1/2)(2.5 mg) = 1.25 mg remain
It doesn't matter how long the half-life is.
The stretch of the OA spring is calculated by the formula of F=-k*(extension) and thats the formula for elasticity. Based on my calculation i came up with an answer of the unstretched length is 2m abd the stiffnes is 310n/m
Answer:
it got me confused for a bit but then i realized the answer was 1 and 0
Explanation:
ever hear of the phrase 1011000001010101001010100100001001000111? yeah ap.ex is talking about that