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Ivenika [448]
2 years ago
7

PLEASE HELP !!! I NEED TO PASS

Physics
1 answer:
zhannawk [14.2K]2 years ago
7 0

Answer:

Sorry I don't know the answer .Hope other help you.sorryyyyyyyy

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Why is the top of a wave called a crest
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A coin 15.0 mm in diameter is placed 15.0 cm from a spherical mirror. The coin's image is 5.0 mm in diameter and is erect. Is th
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Answer:

15 cm

Explanation:

h_{o} = Diameter of the coin = 15 mm

h_{i} = Diameter of the image of coin =  5 mm

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d_{i} = distance of the image of coin from mirror = ?

Using the equation

\frac{d_{i}}{d_{o}} = \frac{- h_{i}}{h_{o}}

\frac{d_{i}}{15} = \frac{- (5)}{15}

d_{i} = - 5 cm

R = radius of curvature

Using the mirror equation

\frac{1}{d_{o}} + \frac{1}{d_{i}} = \frac{2}{R}

\frac{1}{15} + \frac{1}{- 5} = \frac{2}{R}

R = - 15 cm

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How much force is needed to accelerate a 4kg mass at 12m/s/s?
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Step by step explanation

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