If a mineral has a parent to daughter ratio of 1:3 (one parent atom for every three daughter atoms), how many half-lives have passed since the mineral formed?

a. 0
b. 1
c. 2
d. 3
e. 4

Answers

Answer 1

Answer:

c. 2

Explanation:

Given that

Parent to daughter ratio = 1:3

Based on the above information, after considering the 1 half-life of radioactive isotope there is one-half of the real radioactive atoms of the parent left also the equivalent number of daughter atoms produced

Therefore after one half, the ratio between parent and daughter atom is 1:1

Now after the second half, half of the left parent atom would be transformed into the daughter cells

This remains a quarter of parent atom and 3 quarter of daughter atoms

So, the ratio of 1:3 would be shown after 2 half-lives


Related Questions

Which planet has a greater mass than the combined mass of all the remaining planets and their moons?

Answers

Answer:

the planet (jupiter) has a greater mass than the combined mass of all the remaining pplanets and theor moons.

Discuss five
five of component of
a map​

Answers

Answer:

Title, a legend, a grid and a compass

Explanation:

The five components of a maps are a Title, a Legend, a Grid and a compass rose to indicate direction.

Which of the following factors does NOT contribute to Turkey's economy?

Question 1 options:

textiles


hydroelectric power


oil


manufacturing

Answers

Answer:

oil

Explanation:

The turkey is a producer of natural oil and gas but the state-owned TPAO is not sufficient enough to make or contribute to the economy through turkey is a major export of apparel, textile, and manufactured transport equipment. Turkey imports machinery chemicals, semi-finished goods and fuel. The agriculture and manufacturing sector are the most dominant sectors.

Answer:

I took the test its OIL

Explanation:

The granite dome in Twain Harte was damaged by the growth of ______________ joints, likely due to ________________.

Answers

Answer:

The granite dome in Twain Harte was damaged by the growth of exfoliation joints, likely due to thermal expansion.

The discontinuity separating the crust from the mantle is named as: A.Mohorovicic B.Conrad C.Reppetty D.Gutemberg

Answers

Answer:

A.mohorovic

Explanation:

The Mohorovičić discontinuity (/moʊhəˈroʊvɪtʃɪtʃ/ MOH-hə-ROH-vitch-itch, Croatian: [moxorôʋiːtʃitɕ]),[1] usually referred to as the Moho discontinuity or the Moho, is the boundary between the Earth's crust and the mantle. It is defined by the distinct change in velocity of seismological waves as they pass through changing densities of rock.[2]

The Moho lies almost entirely within the lithosphere.[3] Only beneath mid-ocean ridges does it define the lithosphere–asthenosphere boundary. The Mohorovičić discontinuity is 5 to 10 kilometres (3–6 mi) below the ocean floor, and 20 to 90 kilometres (10–60 mi) beneath typical continental crusts, with an average of 35 kilometres (22 mi).

Named after the pioneering Croatian seismologist Andrija Mohorovičić, the Moho separates both the oceanic crust and continental crust from underlying mantle. The Mohorovičić discontinuity was first identified in 1909 by Mohorovičić, when he observed that seismograms from shallow-focus earthquakes had two sets of P-waves and S-waves, one that followed a direct path near the Earth's surface and the other refracted by a high-velocity medium.[4]

Which situations describe increasing atmospheric stability (choose all that apply): Group of answer choices daytime solar heating of the surface increases surface temperatures cold air from land moves over a warm lake rising surface temperatures on a calm, sunny summer day environmental lapse rate increasing with time a North wind brings in cold air from Canada, lowering surface temperatures Surface air cools while air aloft warms

Answers

Answer:

daytime solar heating of the surface increases surface temperatures.

Explanation:

Atmospheric stability is the condition where the air is generally considered to be stable than earlier due to the certain changes that take place over the period of time which are associated with the weather and climatic variability. As the colder air mass is denser than the warmer and lighter air mass thus reverse in the condition leads to instability.

A climate classification based on the geographic determinants of climate, such as latitude or elevation, is an example of a(n)'

Answers

Answer:

Genetic classification.

Explanation:

The genetic classification of climate is based on determinants of climate such as, location with respect to wind and pressure belts, latitudinal control of temperature, effects of mountains.

Genetic classification also relies on information about climatic elements like solar radiation, air masses, and pressure systems.

This classification is qualitative and climate is designated in a subjective manner with no rigorous scientific research done.

modern humans first appeared about __ years ago

Answers

Seven million




Hope i helped

Answer:

200,000 years

Explanation:

Pretty sure that was the answer on a-p-e-x

Which type of rock can be either foliated or non-foliated?
A. Metamorphic
B. Sedimentary
C. Igneous

Answers

Answer:

A

Explanation:

metamorphic

Metamorphic rock
Hope it helps ❄️

units use to measure temperature

Answers

Explanation:

Hey, there!!

Temperature is defined average kinetic enegry of the molecules contained in the body or substance. The SI unit of temperature is kelvin. We generally measure temperature in:

Fahrenheit (ranges from 32°f to 212° f)Kelvin (ranges from 273° k to 373° k)centrigrade ( ranges from 0°c to 100° c)

Hope it helps...

Here is a general sequence of events in the development of the Renaissance. Which statement BEST completes the second event? Event 1: Italy's location encouraged trade. Event 2: Event 3: Italy's families became art patrons. A. Italian merchants helped artists and writers study in Muslim lands. B. Italian merchants gained wealth and political power. C. The Renaissance spread beyond Italy to other countries in Europe. D. New Italian city-states emerged to sponsor the Renaissance.

Answers

Answer:

Event 1: Italy's location encouraged trade.

Event 2: Italian merchants gained wealth and political power.

Event 3: Italy's families became art patrons.

Answer:

Event 1: Italy's location encouraged trade.

Event 2: Italian merchants gained wealth and political power.

Event 3: Italy's families became art patrons.

Explanation:

Based on the population density maps above, what can be inferred about Britain’s migration patterns? A. The population of Britain was greater in 1701 than in 1911. B. Britain was more densely populated in 1911 than in 1701. C. Fewer people lived in urban areas in 1911 than in 1701. D. The northern part of the island was more densely populated than the southern part in 1701.

Answers

Answer: B. Britain was more densely populated in 1911 than in 1701.

Explanation:

In the map below, the darker colors are used to denote a heavier population density. Looking the map you will notice that there are more darker colors in 1911 then in 1701 which would mean that Britain as a whole was more densely populated in 1911 than in 1701.

This was down to Britain becoming a World Military and Economic power. These two factors meant that more prosperity was due to Britain which enabled it to reduce the mortality rate of its people in the so called Mortality Revolution.

If the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would

Answers

Answer:

the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would If the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would A. quadruple.N

Answer:

It would drop to 1/4

Because the sun would be farther away from the earth.

Hope this helps! (づ ̄3 ̄)づ╭❤~

If you wanted to enjoy direct sun on Fogo Island in the tropical West African country of Cape Verde, which date would be best

Answers

The direct sunshine of Fogo island in western Africa can be seen best in the month of July and onwards.

What is the time to enjoy the direct sun on Fogo islands?

Fogo is the volcanic island found in Cape Verde, which is an area of about 476 km sq. and is about a distance of 2,829 meters in elevation. The island is found between the islands of the Santiago to the east and the Brava to the west.

The climate of the place is moderate tropical and has an annual temperature of about 25 degrees.

The time from July to the November is mainly dry and has warm thus it's the time when most of the island gets direct sunlight.

Find out more information about the enjoy the direct sun.

brainly.com/question/3005929.

According to Nostrand, Map 10.3, which of the following is not considered one of the three Ohio river ports that had natural advantages for town founding?
a. Cincinnati
b. Pittsburgh
c. Louisville
d. St. Louis

Answers

Answer:

d. St. Louis

Explanation:

St. Louis is a city situated along the western bank of the Mississippi River. Missouri is a state in the United States of america and St. Louis is located in this Missouri state. St. Louis is one of the largest urban areas of this state. Cincinnati , Pittsburgh  and Louisville  are the cities which are located on the bank of Ohio river while St. Louis located in different state along different river.

5. How were Earth's core and mantle formed?

Answers

Answer:

God created the earth Genesis chapters 1 - 2

Geologists use epochs to further divide geologic eras and periods. Put the following epochs from the Cenozoic Era in chronological order, from the earliest to the most recent.a. Pliocene b. Paleocene c. Eocene d. Miocene e. Oligocene

Answers

Answer:

Earliest to Latest goes from: Pliocene, Miocene, Oliocene, Eocene, Paleocene.

Explanation:

All these times occur during the Cenozoic epoch.

Bioplastics made from corn grown using industrialized agricultural methods would have a smaller ecological footprint that bioplastics made from native prairie switchgrass.
A. True
B. False

Answers

Answer:

A this is true

Explanation:

i had to answer this question and i got it right

Bioplastics made from corn grown using industrialized agricultural methods would have a smaller ecological footprint that bioplastics made from native prairie switchgrass.

Thus, the correct option A.

What are Bioplastics?

Plastics made from renewable biomass sources, such as plant fats and oils, maize starch, straw, woodchips, sawdust, and recovered food waste, are known as bioplastics.

Some bioplastics are made by processing polysaccharides (such as starch, cellulose, chitosan, and alginate) and proteins (such as soy protein, gluten, and gelatin) directly from natural biopolymers.

Other bioplastics are made chemically from sugar derivatives (such as lactic acid) and lipids (such as oils and fats) from either plants or animals, or biologically by fermentation of sugars or lipids.

Contrarily, conventional plastics like fossil-fuel plastics, often known as petro-based polymers, are made from natural gas or petroleum.

Bioplastics have the advantage of not requiring fossil fuel as a raw material, which is a limited and unevenly distributed resource with political and environmental implications.

Learn more about Bioplastics, here

https://brainly.com/question/17285813

#SPJ5

zeugen and yardang differences​

Answers

Answer:

Yardangs are formed on vertical strata while zeugen on horizontal strata. ... Yardangs are formed on vertical hard/soft layers of rock, while zeugen (this is its plural form) are formed on horizontal bands of hard/soft rocks giving it a more mushroom-like shape. The Great Sphinx of Giza has been sculpted in a yardang

New Faces, New Places: Mastery Test
Select the correct answer.
Which personality trait best fits the description?
Lupe estudia mucho y toma cursos avanzados en matemáticas y literatura.
A.
timida
В.
amable
C
estudiosa​

Answers

Answer: C. estudiosa​

Explanation;

The text mentions that Lupe studies very hard and even takes advanced courses in Math and Literature. The best personality trait to describe him is therefore Estudiosa which means Studious.

A Studious person is one who studies quite a lot in the pursuit of academic excellence. They spend a bulk of their time reading books as well in a bid to gain knowledge. Such people feel comfort when they read.  

What would be the most likely result of the development of a new subdivision in a remote area with no utility services provided by the county or nearby cities?

Answers

Answer:

The development of a new subdivision in a remote area would lead to the creation of a poor area, without development possibilities, especially since there are no utility services.

What type of rock is most likely to form in an earthquake zone?
A. Extrusive igneous rock
B. Sedimentary rock
C. Metamorphic rock
D. Intrusive igneous rock

Answers

Answer:

C. metamorphic rock

Explanation:

Although metamorphic rocks typically form deep in the planet's crust, they are often exposed on the surface of the Earth. This happens due to geologic uplift and the erosion of the rock and soil above them. At the surface, metamorphic rocks will be exposed to weathering processes and may break down into sediment. hope this helps you :)

Explain how the processes that create hot-spot volcanic chains differ from the processes that generate volcanic island arcs.

Answers

Answer:

Following are this difference to this question:

Explanation:

It is an interconnected tectonic plate for creating an island arc, in which sea plate sinks into the sea and some other, throughout the continental as well as oceanographic croutons a tourist hotspot volcanic eruption forms, in which lava explodes from its coat.  

These volcanos are often far from boundaries with plate lands, and All the types are restrained, however, the volcanic arches connect with the sea, whereas the island arches come into contact with the ocean.

Other Questions
i will rate you brainliest 3 personajes a nivel mundial que sean referentes al valor de honestidad. Y porqu BOND VALUATION Asiana Fashion's bonds have 10 years remaining to maturity. Interest is paid annually; they have a $1,000 par value; the coupon interest rate is 8% and thebyield to maturity is 9%.What is the bond's current market price? The Federal Communications Commission (FCC) has each of these powers except _____. A. censoring programs before they are broadcast B. refusing to renew a broadcast stations license C. banning obscene language D. regulating radio broadcasts Assume the existence of a Phone class. Define a derived class, CameraPhone that contains two data members: an integer named, imageSize, representing the size in megabytes of each picture, and an integer named memorySize, representing the number of megabytes in the camera's memory. There is a constructor that accepts two integer parameters corresponding to the above two data members and which are used to initialize the respective data members. There is also a function named numPictures that returns (as an integer) the number of pictures the camera's memory can hold. The ending retained earnings balance of the Taco Heaven restaurant chain increased by $2.6 million from the beginning of the year. The company had declared a dividend of $1.5 million. What was the net income earned during the year Abby had a checkbook balance of $1,002.45. She paid $76.98 to the electric company and $254.34 to the water company. What is Abbys current checkbook balance? Which unbalanced force accounts for the direction of the net force of the rocket?a. Air resistanceb. Frictionc. Gravityd. Thrust of rocket engine In 2006, Gap Inc. ended their relationship with 23 production facilities due to code violations. Several closings occurred because of the use of child labor. In response to these events the Gap created a large team whose purpose is to travel worldwide to ensure compliance with their Code of Vendor Conduct. This is an example of Identify the error in the following statement: Photosynthesis is a chemicalreaction that takes place in the chloroplasts of green plant cells, where chemicalenergy is used to convert carbon dioxide and water into glucose and oxygen."A. No errorsB. "water" and "oxygen" should be switchedC. "chemical" should be "light"D. "chloroplasts" should be "mitochondria" Sasha attends youth activities at her church and spends most of her time at and after school with friends from church. According to research, this peer-group influence should help her avoid: please please help!! Write an equation in slope-intercept form for the line the road will follow. (The road is the dashed line.) Suppose that the central bank must follow a rule that requires it to increase the money supply when the price level falls and decrease the money supply when the price level rises. If the economy starts from long-run equilibrium and aggregate demand shifts right, the central bank must The arc length apothem shown below is 15 feet. Part 1) State the equation that relates arc length to central angle. Part 2) Find the angle apothem in radians. Part 3) Convert your answer from Part 2 to degrees and write it to the nearest hundredth of a degree Find the measure of c. In 2019, Tim sells Section 1245 property for $28,000 that he had purchased in 2009. Tim has claimed $5,000 in depreciation on the property and originally purchased it for $15,000. How much of the gain is taxable as ordinary income? 7x-2-3xIm trying to combine like terms facists differed communism because facists? A) B) C) D) 3(x6)=18 help plese