3 years ago

For two variables that are inversely related, what is the result of doubling one variable?

2 answers:

5 0

Roses are red, violets are blue. the answer were all looking for, is 42.
grass is green, yogis are lean, me---well i'm just mean.
now just one more, before i go. OMG look out your window!!!!!

did i get ya? no? ok then.

iVinArrow [24]3 years ago

3 0

the other variable is halved.

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What Is the mass of 7.50 mol of uranium

Andru [333]

Moles x Mol mass = mass.
<span>Having looked it up, the mol.mass of U-238 is 238.03g/mol. </span>
<span>7.50 moles x 238.03g/mol. = 1,785.23g/mol</span>

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4 years ago

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A 3.8 object is lifted 12 meters. how much work is performed during the lifting?

Delicious77 [7]

I believe the answer would be 446.9 J.

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What expression gives the amount of light energy (in J per photon) that is converted to other forms between the fluorescence exc

erastovalidia [21]

Answer:

E = hf or $E=\dfrac{hc}{\lambda}$

Explanation:

The expression that gives the amount of light energy that is converted to other forms between the fluorescence excitation and emission events is given by :

E = hf

f is the frequency

$E=\dfrac{hc}{\lambda}$

c is the speed of light

$\lambda$ is the wavelength

Hence, this is the required solution.

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3 years ago

The surface temperature of our sun is about 5800 K, and the peak of its intensity curve is in the middle of the visible spectrum

amm1812

Explanation:

i expected to use Stefan's law of heat exchange but the value you gave aren't conclusive.

I should say that the temperature of the star should be close to that of the sun because of the similarity in the intensity curves

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2 years ago

A Cassegrain telescope

yuradex [85]

The answer is D.

Hope this helps and have a good day :D

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3 years ago