FASTTT FOR BRAINLIST
Mrs. Smitherman’s lab has a sample of a radioactive potassium isotope with a half-life of one week.
How much of the original sample would be left in the lab at the end of the third week?
A 1/8
B 1/4
C 1/2
D 1

Answers

Answer 1
the answer should be A?
Answer 2
A at the end of three weeks there will be 1/8 left

Related Questions

2. What is the difference between a depreciation of the dollar and a devaluation of the dollar?

Answers

Answer:

A devaluation occurs when a country makes a decision to lower its exchange rate in a fixed or semi-fixed exchange rate. A depreciation is when there is a fall in the value of a currency in a floating exchange rate.

Essentially devaluation is changing the value of a currency in a fixed exchange rate. A depreciation is reducing the value in a floating exchange rate.

The blue gill is a type of fish that lives in Indiana ponds. It's diet consists of insects snails other small fish and fish eggs. What role does the bluegill play in the food web of a pond? (And i couldn't find science so i put it under physics)

Answers

Answer:

Bluegills are the primary food source in every farm pond. They spawn from May to September and provide a large amount of food to the predators in the pond.

Explanation:

^^^^^^^^^^^^^^^^^^^^^^^^

Can someone answer this

Answers

Answer:

Tampa, FL would experience precipitation in form of rain.

Explanation:

This is because in the key, it shows that it has low pressure and according to the passage, if there is low pressure, clouds would form, giving the area a higher chance of rainfall.

Yes or no we can say

1. Define robbery, burglary, safe burglary, and theft.

Answers

Answer:

So if a person breaks a window to get into the house or break open your cupboard to steal, it is considered burglary. Usually, an HPP covers burglary but not theft. Theft would mean the person committing the crime had access to the house or its valuables.

Please mark me the brainliest .....

5. We run huge trade imbalances with two countries. Explain the cause of the imbalances.

Answers

Answer:

One country could be gaining more benefit than the other.

Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into one cup, Suzanne can hear him through the other. What is the best reason to explain why this happens?
A. Sound waves can travel great distances.
B. Sound waves from whispering have a higher frequency.
C. Sound waves travel better through solids than gases.
D. Sound waves produce an echo.

Answers

Answer:

C

Explanation:

Because you can feel vibrations through solids but not through gases

Answer:

c

Explanation:

Because you can feel vibrations through solids but not through gases

What data will the simulation provide about your design? You will also need a control (something you don’t change) that you can use as a comparison to see how effective your design is. Explain how you will set up a control.

Answers

Answer:

yes you will need a control

Explanation: all i know is that you need a control i don't know how to set it up lol sorry

5. Why does a Ntion try to influence the value of its currency?

Answers

Answer:

If inflation is relatively lower than competitors, then the countries goods will become more attractive and demand will rise. Lower inflation tends to increase the value of the currency in the long term.

Explanation:

Can anyone help with this?

Answers

Answer:

A. The volume of the object

Explanation:

First of all, it can only PROBABLY be A or D

But why is it only A?

Mass = The amount of matter in an object (nothing related here)Volume = How much space is the object taking (super related here)

It's VOLUME here and not MASS here because:

It it would be Mass, then the object size could be anything, but the liquid wouldn't move as much higher. But because it is Volume, it is taking space, which makes the liquid moveIf the Mass would be the answer, then it would be totally not related, because mass isn't related over here, it matters about size.

Hence, A. The volume of the object

is your answer!!!!

A-the volume of the object

1. Why is only a small portion of the solar energy that strikes Earth's atmosphere stored by primary producers?

Answers

Explanation:

only a fraction of radiation strikes plants or algae and only a portion of that fraction is of wavelengths suitable for photosynthesis and much energy is lost as a result of reflection or heating of plant tissue

Only a small portion of the solar energy that strikes Earth's atmosphere is stored by primary producers primarily due to the limitations and inefficiencies in the process of photosynthesis.

Photosynthesis is the biological process by which primary producers (such as plants, algae, and some bacteria) convert solar energy into chemical energy in the form of glucose (a type of sugar). However, photosynthesis is not a perfectly efficient process, and several factors contribute to the small fraction of solar energy being stored:

Reflection and Absorption: Not all incoming solar energy is absorbed by the plants. Some of it is reflected back into space or absorbed by other substances in the atmosphere, water bodies, or the Earth's surface before reaching the photosynthetic organisms.

Wavelengths: Solar energy reaches Earth in the form of electromagnetic radiation, which includes different wavelengths. Chlorophyll, the primary pigment responsible for capturing light during photosynthesis, is most efficient at capturing certain wavelengths, particularly in the blue and red regions of the electromagnetic spectrum. The rest of the spectrum is less effectively utilized by the photosynthetic organisms.

Light Availability: Photosynthesis requires sunlight, so the amount of energy captured is also influenced by factors like the length of day and cloud cover. Weather conditions can limit the availability of sunlight, impacting the overall energy capture.

Respiration: Plants and other primary producers also use some of the energy they capture for their metabolic processes, including respiration, where they consume glucose to obtain energy for growth, maintenance, and reproduction. This reduces the net amount of energy stored as biomass.

Losses in Growth and Reproduction: Not all stored energy is converted into plant biomass. Some energy is used in growth and reproduction, while some is lost as heat during metabolic processes.

Hence, these factors contribute to the limited efficiency of photosynthesis and explain why only a small portion of the solar energy that strikes Earth's atmosphere is stored by primary producers as chemical energy in their tissues.

To know more about solar energy here

https://brainly.com/question/9704099

#SPJ2

11. How did the steel tariff affect the domestic steel industry, the workers in the steel industry, workers in steel-use industries, and consumers?

Answers

Explanation:

Substantial tariffs on steel imports would raise U.S domestic prices and will boost the industry. Without protection, nearly 60,000 U.S steelworkers can lose their jobs. Besides, there are many steel consumers, such as automakers and construction companies.

8. Why might ChiN want to keep the price of the yuan low? Who suffers from this policy?

Answers

Answer:

Experts claim that China is artificially keeping the Yuan low in order to get an unfair trade advantage.

Explanation:

8. What variables shift both the long-run and short-run aggregate-supply curves?

Answers

Variables shift both the long-run and short-run aggregate-supply curves are productivity, labor Wage Costs and taxes and other costs.

What is aggregate-supply?

The entire quantity of goods and services that enterprises in a national economy intend to sell during a certain time period is known as aggregate supply

Variables shift both the long-run and short-run aggregate-supply curves are ;

1. Productivity

2. Labor Wage Costs.

3. Taxes and other costs -

4. Material Prices.

5. Size of labor force.

6. Stock of Capital.

Hence, variables shift both the long-run and short-run aggregate-supply curves are productivity, labor Wage Costs and taxes and other costs.

To learn more about the aggregate-supply, refer:

https://brainly.com/question/16419230

#SPJ1

2. Are high trade deficits a worry?

Answers

Answer:

Trade deficit is always harmful to a country's economy

Explanation:

sorry i dont know how to explain

Economists disagree on the simple question of whether sustained trade deficits are good, bad, or don't matter much for a country and its economy. That's because there are so many variables—so many ways to generate a trade deficit and so many ways it might help or hurt an economy, or reflect good or bad aspects of that economy.

Genetic variation can occur amongst siblings since:

PLEASE HELP ME 2 more questions

Answers

Answer:

d: each offspring inherts a unique combination of genes from both parents.

Explanation:

each offspring inherits a unique combination of genes from both parents!

Provide one reason why it would be hard for an alien to view the Earth with a light telescope.

Answers

Answer:

The Earth is a very bright object when viewed with a light telescope. The light from the sun reflects off of the Earth's surface and this makes it very difficult to see anything else.

Explanation:

The brightness of the Earth makes it difficult for an alien to view it with a light telescope. The light from the sun reflects off of the Earth's surface and this makes it very difficult to see anything else. The light from the sun can also cause the Earth's atmosphere to glow, making it even harder to see anything else.

from space, with the reflections of the sun and other vectors of light, the earth is pretty bright for the normal human eye. if the alien has similar optics, it would be quite difficult to see the earth in good detail

9. Would it be advantageous to borrow money if you expected prices to rise? Why or why not?

Answers

Answer:

It would be advantageous to borrow money if you expected prices to rise.Borrowers benefit from unanticipated inflation because the money they pay back is worth less than the money they borrowed. obtaining income in the form of the interest and finance charges on the loan.

Explanation:

8. Why would ChiN want its own currency to be undervalued relative to the U.S. dollar? How does ChiN maintain an undervalued currency?

Answers

Answer:

The Chinese government wish to keep the currency undervalued because: A weaker exchange rate makes exports more competitive and increases demand for Chinese exports. Chinese economic growth is dependent on exports, so the value of the currency plays a key role in boosting growth.

Explanation:

Can someone answer this

Answers

Answer:

b

Explanation:

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

b is the correct answer

How can a charged balloon attract a wall without any contact?

(A) The positive charges of the uncharged wall move to the outside.

(B) The wall changes shape and the positive charges move to the inside.

(C) The negatively charged balloon repels and moves away from the wall.

(D) A positive charge in the balloon attracts the negative charges in the wall.

Answers

Answer:

d because opposites attract

Answer:The wall changes shape and the positive charges move to the inside.

Explanation:

12. Explain why domestic producers who supply a good that competes with imports would prefer an import-substitution approach to trade policy rather than an export-promotion approach. Which policy would domestic consumers prefer and why?

Answers

Answer:

Explanation:

you didnt answer my  question so ya i am in 6 grade i dont now that sorry

Can someone answer this

Answers

Answer:

A. The probable direction of storm movement for the next 12 hours.

Answer:

  A. The probable direction of storm movement for the next 12 hours.

Explanation:

In the northern hemisphere, air circulation is counterclockwise around a low pressure system. The arrow drawn on the diagram is below (south of) the center of low pressure, so the winds will be to the east in that area. The arrow is pointed in the direction of probable frontal system movement.

__

Other answer choices:

The map is of a portion of the eastern part of the North American continent. There is no ocean in the area of the frontal system or the arrow, so ocean currents are irrelevant to what the arrow is showing.

Convection currents in the atmosphere are vertical air currents. The horizontal arrow cannot show anything about convection currents.

Due to jet stream and trade wind direction over North America, the storm system shown would have originated farther to the north and west. The arrow points to the east northeast, so is not pointing in the direction of the origin of the storm system.

Why do most amphibians return to the water to reproduce?
A *Amphibians must return to the water to find a mate.
B *Fertilization can only occur externally in the water.
C *Amphibian eggs do not contain a protective shell.
Pls help

Answers

C. amphibian eggs do not contain a protective shell
C, amphibian eggs do not contain a protective shell

is it possible to breed a black haired long tailed retriever? If so, what percentage is possible? PLEASE answer the corrects answers pleaseeeeeeeee if u do i will give u extra points this is science btw

Answers

Answer: it can be considered a genetic mutation with a history of a Golden Retriever in their blood but it is very rare. and there our some black retrievers you can buy too. i hope i helped

Explanation:

Yes it is I say it would be like a 30% chance

variables that affect the amount of current flowing in a circuit​

Answers

Answer:

In a closed electric circuit, resistance of the components and the voltage of a power source are affecting the electric current.

5. How does privatization contribute to productivity?

Answers

Answer:

increased competition

Explanation:

8. What was the major sticking point holding up progress in the Doha Round?

Answers

Answer:

opening up agricultural and industrial markets in various countries and how to cut rich nation farm subsidies

Explanation:

.

can someone answer this

Answers

Answer:

blizzard?

Explanation:

seems to fit the discription in my book...

Blizzard I think? I’m not in 6th yet but I will be soon so I’m just warming up answering questions hope it helped!

Circle the letter that corresponds to the best answer.
3. Which statement do you agree with? ( LO6 , 7 )
a) There are several problems causing our huge trade deficit; there are no easy solutions to these problems.
b) We could quickly elimiNte our trade deficit by raising tariffs.
c) The main reason we have a large trade deficit is that foreigners refuse to buy American goods and services.
d) The main reason for our large trade deficit is our relatively low rate of economic growth.

Answers

Answer:

D

Explanation:

The main reason for our large trade deficit is our relatively low rate of economic growth.

Answer: D
Explanation:

In the real world, the pendulum in a clock eventually comes to a stop. Someone or something needs to supply energy for the clock to continue to work. Why do you think the pendulum cannot continue moving on its own forever? Where does its energy go?

Answers

Answer:

USING LAW OF CONSERVATION OF ENERGY

Explanation:

As we know that energy can not be created nor be destroyed.The pendulum cannot continue moving on its own because it meets energy losses due to friction.Its energy is converted into heat energy which dissipates in the air

Other Questions
do you think voting age should be changed to 10 years old I need three reasons BSU Inc. wants to purchase a new machine for $29,300, excluding $1,500 of installation costs. The old machine was bought five years ago and had an expected economic life of 10 years without salvage value. This old machine now has a book value of $2,000, and BSU Inc. expects to sell it for that amount. The new machine would decrease operating costs by $7,000 each year of its economic life. The straight-line depreciation method would be used for the new machine, for a six-year period with no salvage value.Instructionsa. Determine the cash payback period.b. Determine the approximate internal rate of return.c. Assuming the company has a required rate of return of 10%, state your conclusion on whether the new machine should be purchased. This is to get easy points but to also be kind If Carmen drives 17.5 miles to a grocery store and 17.5 miles back then cant find what she needs so she drive 12.5 miles to a gas station and 12.5 back how many miles did she drive. I will be giving points out for being on this app so be on the lookout Please Help! Give full description on how you did both pls. Giving brainleist. Which property is demonstrated below? startfraction 17 over 3 endfraction times startfraction 3 over 17 endfraction = 1 associative property of multiplication inverse property of multiplication identity property of multiplication commutative property of multiplication Please solve with explanation (high points) Question 9 of 10 which part of a financial aid letter shows what you will have to pay after deducting all gift aid? o a. net cost o b. expected family contribution c. net worth on total cost of attendance Molly inflates a beach ball to a volume of 8 liters in her air-conditioned house wherethe temperature is 19C. Later that day, Molly takes the beach ball to the beach. Thetemperature at the beach was 33C, and the air pressure at the beach is the same asit was at the house.What will happen to Molly's beach ball when she is at the beach? find the circumference and the area of a circle with 6m.write your answer in terms of , and be sure to include the correct units in your answer How you do it??????can you explain me What are the characteristics of the bowling ball that give it lots of momentum? a. it's big b. it's heavy c. it's moving quickly Each has a radius of 5 in and a height of 12 in. How much more water can the cylinder hold than the cone? (Use =3.14) Which of the following would most logically symbolize cleanliness?horsesofathronewater Which ordered pairs represent the equivalent ratios in the table? check all that apply. (1, 2) (1, 4) (2, 8) (4, 1) (3, 12) why are p- waves received but S- waves are not received by seismic stations located on the opposite side of Earth from an earthquake epicenter?a. S-waves travel slower than p - wavesb. S-waves travel faster than p-wavesc. earths inner core absorbs s-wavesd.earths outer core absorbs s-wavesPlease help!!!! Which of the following BEST describes the possible impact of tobacco use on families?A. Tobacco use can lead to financial difficulties.B. Tobacco use can cause increased incidence of illness.C. Tobacco use can lead to increased family conflict.D. all of the abovePlease select the best answer from the choices provided.NextMark this and returnSave and ExitSubmit Complete the text with the right conjugation of the verb "gustar"Hola! Soy Rebeca, la maestra de actividades extracurriculares. A mis estudiantesparticipar en las tardes. A las chicaspracticardeportes.A Tonytomar fotos y a Diegoel club depoesa.A los estudiantes y yoorganizar diferentes actividades. A vecesnos gustalibros oal ajedrez. Please help president woodrow wilson had a key role at the paris peace conference. how was he successful in shifting political thought to one of his fourteen points? 1 he correctly pushed for the idea that colonies of defeated european nations needed to start self-rule. 2 he persuaded others that an international organization to preserve the peace for all was critical. 3 the three key allies agreed with wilson that punishing one country would hurt european unity. 4 military alliances were permanently dismantled after wilson negotiated this compromise with other leaders. IMPORTANT HELP PLEASE ANSWER IMMEDIATELY!!!!!Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.Solve the following equation. Show all your work.(x/(x2))+((x1)/(x+1))=1 Which of the following types of "shock" is likely to be a symptom code based on the first character of the code?A. Anaphylactic shock due to food, T78.00B. Insulin shock, E51C. Septic shock (due to severe sepsis), R65.21D. Toxic shock syndrome, A48.3