Use the fact that the quantity of a radioactive substance after t years is given by
1 answer:
Answer:
50 kg
Step-by-step explanation:
Put the given numbers into the given formula and do the arithmetic.
q = q0(2^(-t/k))
q = (87 kg)(2^(-20/25)) = (87 kg)(0.574349)
q ≈ 50 kg
The amount remaining after 20 years is about 50 kg.
You might be interested in
Answer:
here are a few that are equivalent
8:6
28:21
48:36
68:51
Answer is 676,000 possible passwords
xxx##
There are 10 possibilities for each digit placed and 26 possibilities for each letter placed.
10x10x10x26x26 = 676,000
Answer:
i did this before
Step-by-step explanation:
the answer is C
Answer:
1/880
Step-by-step explanation:
5m/s
Divide it by the unit. It’s basic simply if
