The half-life of a certain material is 0.002 second. Approximately how much of a 14-gram sample will be left after 0.004 second?

A.

12 grams

B.

3.5 grams

C.

0.06 gram

D.

7 grams

Question

Mathematics

Lizeth Ayers

6 March, 10:35

The half-life of a certain material is 0.002 second. Approximately how much of a 14-gram sample will be left after 0.004 second?

A.

12 grams

B.

3.5 grams

C.

0.06 gram

D.

7 grams

+3

Answers (1)

Know the Answer?

Lilian Gutierrez · Answer 1

B. 3.5 grams.

Step-by-step explanation:

After 0.002 seconds 1/2 * 14 = 7 grams will be left.

After another 0.002 seconds (total 0.004 seconds), 1/2 * 7 = 3.5 grams will be left.

The half-life of a certain material is 0.002 second. Approximately how much of a 14-gram sample will be left after 0.004 second?A.12 gramsB.3.5 gramsC.0.06 gramD.7 grams

The half-life of a certain material is 0.002 second. Approximately how much of a 14-gram sample will be left after 0.004 second?

A.

12 grams

B.

3.5 grams

C.

0.06 gram

D.

7 grams