RichardKing1349 RichardKing1349

09-11-2021
Mathematics

contestada

a radioactive substance has a half-life of 2 seconds. A scientist begins with a sample of 20 grams. How much of the substance remains after 8 seconds?

Respuesta :

annak2788 annak2788

09-11-2021

Answer:

1.25 g

Step-by-step explanation:

you start with 20g at 0 seconds.

divide by half after 2 seconds and you have 10g.

at 4 seconds you have 5g.

at 6 seconds you have 2.5g.

at 8 seconds you have 1.25g.

Answer Link

Otras preguntas

Which of the following BEST describes the process of developing and maintaining a strong family relationship? a. avoid conflict as much as possible, avoid comm

What nine tents written as a decimal

*HOW DID THOMAS JEFFERSON GET ELECTED * (THOMAS JEFFERSON ERA) WHAT WHERE THERE BASIC BELIEFS?

A liquid is cooled if a. evaporation exceeds condensation. b. condensation exceeds evaporation. c. evaporation and condensation proceed at equal rates. d. c

Twelve cows produce 224,988 pounds of milk find the unit rate in pounds per cow

A manufacturing company is producing dinner plates with a diameter of 12 inches. They plan to put a gold edge on each plate. Determine how much gold edging the

Simplify the ratio of 15:24

The cost to rent a vacation house for a week is 850$. How much will Renee , susan and Martha each pay to rent this house for a week

Which factor was the greatest advantage of the United States in World War II? A. The geographical location of the United States B. The military leaders o

Why is acetic acid written as hc2h3o2 rather than c2h4o2?