Answer:
30 seconds
Explanation:
A = A02^-(t/hl)
--> ln(A/A0) = -(t/hl)ln2
solving for hl,
hl = -t x ln2 /ln(A/A0)
= -(60 min)xln2/ln(50/200)
= 0.5 min or 30 seconds
It is gonna be C 0.37 and 19.1
Answer:
20
Explanation:
20 multiplied by 2
hope i hv answered ur question
Answer:
the weight of the wire + 25kg
Explanation: