lydiagharrell lydiagharrell

Today at 5:02 AM
Biology

Answered

Potassium-40 has a half-life of 1.3 billion years. If a rock was
determined to be around 3.9 billion years old what percentage
of the original potassium-40 would be left in that rock sample?

Answer :

milanidanae milanidanae

Today at 5:07 AM

Answer: The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.

Answer Link

Today at 5:07 AM

The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.

Answer Link

Other Questions

use the information below for flushing company to answer the question that follow. below is budgeted production and sales information for flushing company for t

in a blueprint, each square has a side length of 1/4 inch. a reduced drawing of a blueprint. the bedroom has 5 square along the length and 4 squares along the w

what is the biocultural perspective? select the best one: group of answer choices a. an anthropological perspective describing the interactions between biology

the following information was taken from the accounting records of elliott manufacturing corporation. unfortunately, some of the data were destroyed by a comput

suppose stanley's office supply purchases 50,000 boxes of pens every year. ordering costs are $100 per order and carrying costs are $0.40 per box. moreover, man

prepare a wordwall of 20 difficult words from story vikramaditya's throne

show that 12×(-12)+(+18×(-12)(2+3)

मनुष्य मात्र बंधू है’ से कवि का क्या भाव है ? *क. हमसब एक ईश्वर की संतान भाई बंधू हैंख. हमसब एक हैंग. ईश्वर एक हैघ. सभी

The following are the daily wages in rupees of 30 workers of a firm: 140, 139, 126, 114, 100, 88, 62, 77, 99, 103, 108, 129, 144, 148, 134, 63, 69, 148, 132, 11

IUCD cannot present STDs

which of the following constitutes an implicit cost to the asarta manufacturing company? a) payments of wages to its office workers b) rent paid for the use of

which question is an illustration of a microeconomic question? rev: 05 10 2018 multiple choice does government spending influence interest rates in the economy?

assuming that we use the general external sorting algorithm to sort a file with 10,000 pages and three available buffer pages. answer the following questions in

explain how the number and party affiliation of federal district court appointees affects presidential influence and power.

ASAP WHAT IS THE VALUE OF Y

a start-up company wants to determine who their key competitors are. in the marketing research process, this is termed as a

libby company uses the percentage of credit sales method for calculating bad debt expense. the company reported $232,500 in total sales during the year; $189,00

true or false: outcomes tend to be better and client satisfaction higher when clients see a therapist of similar ethnicity.

the required return can be affected by changes in the risk free rate, even if the risk premium remains constant. true false

o you would inherit multiple genes from both parents to get those traits such as height, skin color, hair color, eye color?