MULTIPLE CHOICEAmericium-245 has a 25 minute half life. If a sample originally contains 88 kg of americium-245, how much will be
remaining after 1 hour and 40 minutes?

Answers

Answer 1

Answer:

Answer:5.5kg would remain

Explanation:see attached photo

Related Questions

Can someone help me to fill in the blanks?
Fertilization of the human egg cell usually occurs in thea. uterus.b. vagina.c. fallopian tube.d. ovary.
Segmentation is the subdivision of the body into segments. True segmentation is found in which of the following phyla? A. Arthropoda, Annelida, Chordata. B. Echinodermata, Platyhelminthes, Cnidaria. C. Mollusca, Chordata, Annelida. D. Annelida, Mollusca, Arthropoda. E. Arthropoda, Chordata, Porifera.
A population of cottontail rabbit gives birth to an average of eight kids baby rabbits per litter and it's only has one predator. However an average of only two kids per litter actually lives to maturity which of these might explain this low survival rate
In this excerpt from Edgar Allan Poe's "The Raven," what does the biblical reference to the healing “balm in Gilead” signify?"Prophet!" said I, "thing of evil!—prophet still, if bird or devil!— Whether Tempter sent, or whether tempest tossed thee here ashore, Desolate, yet all undaunted, on this desert land enchanted— On this home by Horror haunted—tell me truly, I implore— Is there—is there balm in Gilead?—tell me—tell me, I implore!" Quoth the Raven, "Nevermore." A. the speaker’s desire to cure the raven of its inability to say anything other than “nevermore” B. the speaker’s desire to cure himself from the pain caused by Lenore’s death C. the speaker’s desire to bring Lenore back to life D. the speaker’s desire to cure himself from his mental illness and hallucinations

Can two species have the same niche

Answers

Of course they can! They almost all the time do

Answer:

The competitive exclusion principle tells us that two species can't have exactly the same niche in a habitat and stably coexist. That's because species with identical niches also have identical needs, which means they would compete for precisely the same resources.

Explanation:

How does a newborn animal know exactly what to do the moment its born?

Answers

hope this helps right here, A babyy animal knowss what to do after birthh just becausee it'ss just a naturall formm of instincts , i think

- hope this have helped you in anyway .

Which of the following correctly describes seafloor spreading?A. New oceanic crust is formed at midocean ridges, pushed away from the ridge, and destroyed at deep-sea trenches.

B. New oceanic crust is formed at seamounts and spreads outward in all directions.

C. New oceanic crust is formed at deep-sea trenches, pushed away from the trench, and destroyed at midocean ridges.

D. New oceanic crust is formed in the middle of tectonic plates and then spreads outward in bands.

Answers

Option D correctly describes seafloor spreading. Seafloor spreading is a process which typically occur at middle ocean ridges where new oceanic crusts are formed as a result of volcanic activity. These oceanic crusts then gradually move away from the ridge.

The answer is B. This occurs at mid-ocean ridges, where two tectonic plates are moving away from each other. As they move in opposite directions, the magma from the mantle below rises to fill the void/space left above. As the magma rises, it cools and forms a new crust. This volcanic activity continues as long as the tectonic plates are moving away from each other and new crust is formed spreading outwards from the ridge, with time.

Which statements are additions to cell theory, called modern cell theory?All cells are similair in structure and function.
Cell contains hereditary information that is passed from cell to cell during cell division.
Living cells can be created from dead cells.
All cells perform similair metabolic activities.

Answers

Answer:

Second and the last statements are correct.

The statements which are added in the modern cell theory are:

Cell contains genetic material in the form of DNA which is passed from parent cell the daughter cells after cell division.
All cells are similar in chemical composition as well as in metabolic activities.
All the physiological and biochemical functions usually take place inside the cell.
The activity of the cell depends upon the cell organelles and other cellular parts.

Its cell contains hereditary information that is passed from cell to cell during cell division, and the also all cells perform similar metabolic activities.

A well designed experiment _____.

Answers

is an educational guess

Find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer below.A.682
B.2044
C.2048
D.678

Answers

First, we need to solve for the common ratio from the data given by using the equation.

a(n) = a(1) r^(n-1)
1024 = 4 r^(9-1)
256 = r^8
r = 256^(1/8)
r = 2

Then, we can find the sum by the expression:

S(n) = a(1) ( 1 - r^n) / 1-r
S(9) = 4 (1 - 2^9) / 1-2
S(9) = 2044

Therefore, the correct answer from the choices listed above is option B.

Answer:

2044, B

Explanation:

Took the test

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