1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
icang [17]
4 years ago
12

The half-life of silicon-32 is 710 years. If 70 grams is present now, how much will be present in 200 years? (Round your answer

to three decimal places.)
Biology
1 answer:
elena-s [515]4 years ago
6 0

Answer:

57.7 grams

Explanation:

Given -

Half life of the silicon-32 = 710 years

Half life means the time period required by a radioactive element to reduce its mass by half.

Radioactive decay formula is

A = A_o*2^{\frac{-t}{h} }

Where

A represents the amount of radioactive element after time t years

A_0 represents the initial amount of radioactive element

t = time of decay

h = half-life of the substance

Substituting the given values in above equation, we get -

A = 70 * 2^{\frac{200}{710} \\

A = 57.7 grams

You might be interested in
What is mostly the reason of an organism having lipids in its body
atroni [7]

The most reason for an organism having lipids in its body is to provide energy to the body. The fat molecules in the lipids can supply more energy gram than carbohydrate molecules. The fat molecules are composed of carbon (C), hydrogen (H), and oxygen (O) atoms. I hope this will help!! Have a great day.

8 0
3 years ago
An agriculturist plants legumes, which host the bacterium Rhizobium in their root nodules for nitrogen fixation. How will these
Digiron [165]
The right answer for the question that is being asked and shown above is that: "<span>A. they will overcome the deficiency of nitrogen in the soil." T</span>hese legumes enrich the soil is that <span>they will overcome the deficiency of nitrogen in the soil. </span>
6 0
4 years ago
4. A machine that converts electrical energy to mechanical energy is called a/an ________.
True [87]

Answer:

That would be option D. A motor.

Explanation:

8 0
4 years ago
Describe a continental rise
Alik [6]

Answer: Continental rise is an underwater sediment feature found between the continental slope and the abyssal plain. This feature can be found all over the world and represents the final stage at the boundary between the continents and the deepest part of the ocean.

Explanation:

El ascenso continental es una característica de sedimento submarino que se encuentra entre el talud continental y la llanura abisal. Esta característica se puede encontrar en todo el mundo y representa la etapa final en el límite entre los continentes y la parte más profunda del océano.

4 0
3 years ago
Consider the following statement by a project analyst: "I analyzed my project using scenarios for the base case, best case, and
s344n2d4d5 [400]

Answer: It is important to conduct many different experiments and estimates in a project for having as much statistic data as possible, because it is necessary to show proof on whichever project you are into. In order to avoid confusion, it's also possible to <u>organize data in Excel sheets/tables so it can be visually easier to interpretate</u>. <u>Gut instinct isn't enough to prove something wrong or righ</u>t, and <u>few data means higher probability of things going in ways other than the expected</u>.

4 0
3 years ago
Other questions:
  • Carpals
    5·2 answers
  • This property of water helps make it the universal solvent?<br><br><br> solvency or polarity?
    7·2 answers
  • Which structure transports water and nutrients from the roots of the rest of the plant
    10·2 answers
  • In the figure above, which letter represents the benthic zone?
    6·2 answers
  • Red algae are thought to have originated by endosymbiosis of cynaobacteria<br> T or F?
    10·1 answer
  • Which is not a compound?<br> 8H 2<br> 5HCI<br> 6Cao<br> он 20
    10·2 answers
  • Can you help me science
    6·1 answer
  • Explain the advantage of an increase in the number of mitochondria in slow twitch fibres. Include at least 2 points in your resp
    8·1 answer
  • Which best describes transduction bacteria
    12·2 answers
  • What is the function of each of the types of cells that make up the nervous system?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!