Answer:
Thus the time taken is calculated as 387.69 years
Solution:
As per the question:
Half life of
= 28.5 yrs
Now,
To calculate the time, t in which the 99.99% of the release in the reactor:
By using the formula:

where
N = No. of nuclei left after time t
= No. of nuclei initially started with

(Since, 100% - 99.99% = 0.01%)
Thus

Taking log on both the sides:


t = 387.69 yrs
Well, the rings surrounding a planet are made out of rock. A ring surrounding the sun would be impossible since the sun can reach more than 27 million degrees Fahrenheit (15 million degrees Celsius.)
Hope this helped.
To find the area, we just need to multiply the length by the width. 200 x 75 = 15,000. The mall has an area of 15,000 sq. feet.
Answer:
53/14
Explanation:
average acceleration = (Vfinal -Vintial)/ time taken
Answer:111.63 joules
Explanation:
Kinetic energy=(massx(velocity)^2)/2
Kinetic energy=(6×(6.1)^2)/2
Kinetic energy=(6×37.21)/2
Kinetic energy=223.26/2
Kinetic energy=111.63 joules