tiffy9066 tiffy9066

03-05-2018
Chemistry

contestada

The half-life of cobalt-60 is 5.20 yr. how many milligrams of a 2.000-mg sample remain after 10.50 years?

Respuesta :

mkryukova19 mkryukova19

03-05-2018

final amount =initial anount *(1/2)^(t/half life)

final amount =2.000 mg *(1/2)^(10.5/5.20) = 0.493 mg remain after 10.5 years

Answer Link

Otras preguntas

how are the ordered pairs 4,9 and 4,-9 similar, and how are they different? Are the two points related by a reflection over an axis in the coordinate plane? If

what is 0.8-0.5/5+0.2

Joe earns $160 per week at a local market. He makes a payment of $12 per week for a new bike. He spends $75 each week on food an entertainment. Joe deposits the

why does warm air raise and cold air sink

Does every point lie in a quadrant?explain

Three students share 5 peaches equally. How many peaches does each student get?

if a rock is sitting in the dirt, the normal force from the ground and________are acting on it

how did western nations come to dominate much of the world in the late 1800s

Which pair of ratios form a proportion? A. 3 : 4 and 4 : 5 B. 10 : 12 and 16 : 18 C. 7 : 10 and 10 : 14 D. 5 : 8 and 20 : 32

Montel spends $0.75 every time he plays his favorite video game. If he has $10 write and solve an inequality to find how many video games he can play