destinysmithds7040 destinysmithds7040

17-01-2022
Biology

contestada

4 PTS

What percent of uranium-235 remains after 1420 million years?

A)

12.5%

B)

25%

C)

40%

D

75%

Respuesta :

chibabykalu16 chibabykalu16

19-01-2022

Answer:

B) 25% but to be exact 24.7%

Explanation:

The halflife of 235U is 704 million years. 1420 million years is approximately two halflives, so about 24.7% would be remaining.

Answer Link

Otras preguntas

he Glowing company could produce an operating cash flow of $56,200 a year for 5 years. The initial fixed asset investment in the project will be $238,900. The n

1/3 (x - 10) = -4 x =

How did the events of the Chinese civil war influence the eventual adoption of the Truman Doctrine? A. The United States was determined to arm anti-communist fo

¿Cuáles son los grados del adjetivo?

HELP PLEASE!!! (Angle) JNM = 103. Find (angle) JNK.

As a result of power negotiations Germany was decided into___zones each of which was controlled by a different allied power

(NOO BOTS) The height of the square pyramid is 5 inches. What is the volume?

Choose the correct word to complete each sentence. 1. The economy shifted from ✔ agrarian to industrial during the First Industrial Revolution. 2. A system of

What number was created in India?

is democracy possible in muslim countries?Explain in 2-3 sentences :(