Explanation:
density = mass divide volume
the volume must be there in order to answer the question.
Boomerang has a curve the airplane propeller is four paddles
I think it’s a because if u do the math that’s what it says
Answer:
Explanation:
The formula for this, the easy one, is
where No is the initial amount of the element, t is the time in years, and H is the half life. Filling in:
and simplifying a bit:
and
N = 48.0(.0625) so
N = 3 mg left after 12.3 years
