shenaeleah shenaeleah

01-03-2021
Physics

contestada

A radioactive isotope has a half-life of 20 hours. How long will it take for 3/4 of the source to decay?

Respuesta :

odetayojomiloju odetayojomiloju

01-03-2021

Answer:

40 hours

Explanation:

in 20 hours, 1/2 will decay

in 40 hours, 1/4 will decay

therefore, 40 hours

Answer Link

Otras preguntas

does the land of Israel have rich soil, similar to that of the fertile crescent

In the chemical reaction below, calcium (ca) and water (h2o) react to form calcium hydroxide (ca(oh)2) and hydrogen gas (h2). ca (s) 2h2o (l) → ca(oh)2 (aq) h2

chem help due in 2 hours. please help. problem 14.

The most complex level of culture is the culture trait. True or False

What are the chances of trump winning the election?

Rewrite the rational exponent as a radical by extending the properties of integer exponents. 2 to the 3 over 4 power, all over 2 to the 1 over 2 power the eigh

What is the equation of this line?

a telephone pole 12 feet tall casts a shadow of 16 feet when a person casts a shadow pf 6 feet. how tall is the person?

Simplify (4x– 4)– 3.

the product of two numbers is 36 the difference of the two nimbers is 9 what are the two numbers