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TiliK225 [7]
3 years ago
6

Which of the following physical properties would tell you about an element's mass per unit volume ratio?

Physics
1 answer:
Igoryamba3 years ago
6 0
Well I can't see the following physical properties you talked about in the question.

Mass per unit volume ratio is called density.
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Wave A has a high frequency and a short wavelength. Wave B has a lower frequency and a longer wavelength. Which wave carries gre
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Answer:

wave A

Explanation:

shortest wavelength carry the most energy

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What is the lowest mass that an object can have and still be a star?
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Answer:

The lowest mass that an object can have to be considered a star is 0.08 solar masses.    

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3 years ago
A pen contains a spring with a spring constant of 270 N/m. When the tip of the pen is in its retracted position, the spring is c
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Answer:

-0.9045 j

Explanation:

Here K= 270 N/m

distance 1 = 4.60 mm=0.0046 m

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The pen store in itself two types of PE

Which is Initial PEi = 1/2 ×K× [distance 1^{2} =0.5×270×0.0046 =0.621 j

and Final PEf = 1/2 × K × distance 2^{2} = 0.5×270×0.0113=1.5255 j

When the pen gets ready - it goes ahead distance d2 and is then pressed back distance d1 for writing.

Total PE when ready  = 0.621-1.5255= - 0.9045 j

so, work =  -0.9045 j

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