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2 years ago

8

What happens to the electron cloud at very high atomic numbers, when the innermost electrons would, using a non-relativistic mod

el, be calculated to exceed the speed of light?

1 answer:

marin [14]2 years ago

8 0

Answer:

tough question

Explanation:

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How do you rewrite 4 5/7 as an improper fraction. in steps

noname [10]

Answer:

33/7

Multiply the denominator of the fraction by the whole number.

Add this result to the numerator of the fraction

answer becomes the numerator of the improper fraction.

Explanation:

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2 years ago

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Gold has a density of 1,200 lb./ft. What is the density of gold in g/em? For conversion factors use I lb. 453.6 g, and l inch-2.

Jlenok [28]

<u>Answer:</u> The density of gold in $g/cm^3$ is $19.22g/cm^3$

<u>Explanation:</u>

Density is defined as the ratio of mass of the object and volume of the object. Mathematically,

$\text{Density}=\frac{\text{Mass of the object}}{\text{Volume of the object}}$

We are given:

Density of gold = $1200lb/ft^3$

Using conversion factors:

1 lb = 453.6 g

1 feet = 12 inches

1 inch = 2.54 cm

Converting given quantity into $g/cm^3$ , we get:

$\Rightarrow (\frac{1200lb}{ft^3})\times (\frac{453.6g}{1lb})\times (\frac{1ft}{12inch})^3\times (\frac{1inch}{2.54cm})^3\\\\\Rightarrow 19.22g/cm^3$

Hence, the density of gold in $g/cm^3$ is $19.22g/cm^3$

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3 years ago

A student asks why the ashes from a fire have a much lower mass than wood that was burned.

valkas [14]

I belive it would be A? BUT IN NOT QUIE SURE? 0_0

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3 years ago

What will happen to the flow of blood in blood vessels (pulse) if heart beat rate increase

PSYCHO15rus [73]

Answer:

"Low levels of the hormone epinephrine, also called<em><u> adrenaline</u></em>, cause blood vessels to relax and widen. High levels of this same hormone, along with the hormone norepinephrine, cause the blood vessels to narrow and the heart rate to rise, <u><em>increasing blood pressure</em></u>."

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3 years ago

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Len [333]

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3 years ago