2 years ago

One-eighth of an original radioactive sample will remain at the end of __________ half-lives.

Physics

1 answer:

GarryVolchara [31]2 years ago

6 0

The answer would be 3 half-lives.

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Earth travels fastest in January and slowest in July. What is the most likely explanation for this?

Keith_Richards [23]

Answer:

Earth is nearest the Sun in July and farthest away in July.

Explanation:

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2 years ago

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An hydrogen molecule consists of two hydrogen atoms whose total mass is 3.3×10−27 kg and whose moment of inertia about an axis p

dlinn [17]

Answer:

$6.9631\times 10^{-11}\ m$

Explanation:

I = Moment of inertia = $4\times 10^{-48}\ kg m^2$

m = Mass of two atoms = 2m = $3.3\times 10^{-27}\ kg$

r = distance between axis and rotation mass

Moment of inertia of the system is given by

$I=mr^2\\\Rightarrow I=2mr^2\\\Rightarrow 4\times 10^{-48}=3.3\times 10^{-27}\times r^2\\\Rightarrow r=\sqrt{\frac{4\times 10^{-48}}{3.3\times 10^{-27}}}\\\Rightarrow r=3.48155\times 10^{-11}\ m$

The distance between the atoms will be two times the distance between axis and rotation mass.

$d=2r\\\Rightarrow d=2\times 3.48155\times 10^{-11}\\\Rightarrow d=6.9631\times 10^{-11}\ m$

Therefore, the distance between the two atoms is $6.9631\times 10^{-11}\ m$

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2 years ago

Organism undergo constant chemical changes as they maintain an internal balance known as?

Aleks04 [339]

The answer is homeostasis.

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2 years ago

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Calculate the density of a material that has a bat a mass of 52.457 g any volume of 13.5 cm³

3241004551 [841]

Answer:
d = 3.8857 g/cm^3

Explain:
Formula/: d = m/V

Hope this helps!
(a brainliest would be appreciated)

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2 years ago

Wich advantage of reproduction does the graph shown

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Answer:

No photo or graph is there

Explanation:

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1 year ago