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Andrew [12]
3 years ago
5

Sarah's group designed this oven and eventually melted the

Physics
1 answer:
torisob [31]3 years ago
5 0

Answer:

b

Explanation:

because i don't he asking me

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In the history of astronomy, which of the following is true? . A] Tycho Brahe built one of the first observatories. B] Ptolemy w
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D. <span>Johannes Kepler argued that Earth was the center of the universe.

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The resistance (R) of a copper wire varies directly as its length (L). Write this relation as a formula using k as the constant
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Answer:

Explanation:

According to ohm's law current flowing in a conductor is directly proportional to the voltage applied across two end of conductor.

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V=R I

where R=resistance

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R\propto \frac{1}{d^2}

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3 years ago
A ball is thrown vertically down from the edge of a cliff with a speed of 4 m/s,
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3 0
3 years ago
An object is located 25.0 cm from a convex mirror. The image distance is -50.0 cm. What is the magnification?
Lynna [10]

Answer:

\boxed{\sf Magnification \ (m) = 2}

Given:

Object distance (u) = 25.0 cm

Image distance (v) = -50.0 cm

To Find:

Magnification (m)

Explanation:

\boxed{\bold{\sf Magnification  \: (m) = - \frac{Image  \: distance  \: (v)}{Object  \: distance  \: (u)}}}

Substituting values of Image distance(v) & Object distance (u) in the equation:

\sf \implies m =  -  \frac{( - 50)}{25}

-(-50) = 50:

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\sf \implies m =  \frac{2 \times  \cancel{25}}{ \cancel{25}}

\sf \implies m = 2

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Meteor maybe?

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