3 years ago

A substance burns in the presence of oxygen.

Physics

2 answers:

valina [46]3 years ago

5 0

If I don’t know a answer I put C bc it is a 50/50 chance but it might be wrong

makkiz [27]3 years ago

5 0

Answer:

D. flammability

Explanation:

I took the test and got it right

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Answer:

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given,

I is moment of inertia about an axis tangent to its surface.

moment of inertia about the center of mass

$I_{CM} = \dfrac{2}{5}mR^2$ .....(1)

now, moment of inertia about tangent

$I= \dfrac{2}{5}mR^2 + mR^2$

$I= \dfrac{7}{5}mR^2$ ...........(2)

dividing equation (1)/(2)

$\dfrac{I_{CM}}{I}= \dfrac{\dfrac{2}{5}mR^2}{\dfrac{7}{5}mR^2}$

$\dfrac{I_{CM}}{I}=\dfrac{2}{7}$

$I_{CM}=\dfrac{2}{7}I$

the correct answer is option E

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