alexistaustin alexistaustin

08-05-2022
Mathematics

contestada

The half-life of radium is 1690 years. If 60 grams are present now, how much will be present in 480 years

Respuesta :

haroldasvilkas27 haroldasvilkas27

08-05-2022

Let A=the remaining amount of radium
Let S=the amount of radium you start with
Let t=the amount of time in years
Let h=the half-life time

Then A=S(1/2)^(t/h)
So,
A=80(1/2)^(430/1690)
A=approx. 67g

Answer Link

Otras preguntas

What was the official language of the Roman Empire and considered a standard course for all educated Europeans? Answer Greek Latin Italian English

Southern Europe's landscape can be described as mostly _____. farmland flatland mountainous tropical

in gym class,ted runs 4/5 mile.his teacher runs 6 times that distance each day.how many miles does.ted's teacher run each day?

lucas lives 5/8 mile from school.kenny lives twice as far as lucas from school.how many miles does kenny live from school

for a tresure hunt game, 300 balls are hidden. Of the balls that are hidden , 40% of them are yellow and the rest are white. Sally's team finds 20% of the yello

What did the Embargo Act of 1807 do?

According to your study unit, a catering resource that offers global networking for caterers, mentors, a caterer's telephone hotline, and many marketing opportu

What are the bonds that connect water molecules?

The main factors that determine the speed of a wave in any particular medium are _____.

If the force exerted by a canon on a cannonball is equal to the force exerted by a cannonball on a canon why does the cannonball move so much farther than the c