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Phantasy [73]
3 years ago
14

Can somebody plz help me with this one the question is in the screen shot.

Physics
1 answer:
kolezko [41]3 years ago
5 0

this is in order.

LANDFILL

GROUNDWATER

PESTICIDE

FERTILIZER

HAZARDOUS WASTE

SEPTIC SYSTEM

SEEPAGE

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An upright object 2.80 cm tall is placed 16.0 cm away from the vertex of a concave mirror with a center of curvature of 24.0 cm.
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f = 12 cm

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<u>Center of Curvature</u>:

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<u>The Radius of Curvature</u>:

The radius of that hollow sphere, whose part is the spherical mirror, is known as the ‘Radius of Curvature’ of  mirror. It is the distance from pole to the center of curvature.

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The distance between principal focus and pole is called ‘Focal Length’. It is denoted by ‘F’.

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Astronomers have observed a small, massive object at the center of our Milky Way Galaxy. A ring of material orbits this massive
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Using formula of radius

r=\dfrac{d}{2}

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Using formula of mass

M=\dfrac{v^2r}{G}

Put the value into the formula

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Hence, The mass of the massive object at the center of the Milky Way galaxy is 3.44\times10^{37}\ Kg

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