Объяснение:
t1/2 = 400 c
n0 = 5nt
nt = n0/(1+t/(t1/2))
nt = 5nt/(1+t/(t1/2))
1+t/400 = 5
t/400 = 4
t = 1600 c
Объяснение:
t1/2 = 400 c
n0 = 5nt
nt = n0/(1+t/(t1/2))
nt = 5nt/(1+t/(t1/2))
1+t/400 = 5
t/400 = 4
t = 1600 c