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aalyn [17]
3 years ago
13

Metal are what because light reflects off the electrons

Physics
2 answers:
givi [52]3 years ago
7 0

The answer is A) Shiny

MArishka [77]3 years ago
6 0
<h2>Answer:</h2>

<u>The right choice is</u><u> (A) Shiny</u>

<h2>Explanation:</h2>

Metals are shiny because of the free electrons that are present in them.When light hits the surface of metals then electrons go to excitement state and try to escape from the surface of the metal because these electrons are only loosely attached to the metal atoms. As a result giving a photon of light in the form of energy The light emitted from photon is looked by us as shine or brittle.

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6. In baseball, a fastball takes about 1/2 second to reach the plate. Assuming that such a pitch is thrown horizontally, compare
klio [65]

Answer:

<em>The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second</em>

Explanation:

<u>Horizontal Launch </u>

When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled exclusively by gravity until it eventually hits the ground.

To calculate the vertical distance (y) traveled by the object in terms of the time (t) we use:

\displaystyle y=\frac{g.t^2}{2}

The fastball is thrown horizontally. The distance the ball falls in t=1/4 seconds = 0.25 seconds, is:

\displaystyle y_1=\frac{9.8*0.25^2}{2}

\displaystyle y_1=0.30625\ m

The distance the ball falls in t=1/2 seconds = 0.5 seconds is:

\displaystyle y_2=\frac{9.8*0.5^2}{2}

\displaystyle y_2=1.225\ m

The distance it falls in the second 1/4 second is:

y_2-y_1=1.225\ m-0.30625\ m

y_2-y_1=0.91875\ m

The ball falls 0.3 m in the first 1/4 seconds, and it falls 0.92 m in the second 1/4 second

3 0
3 years ago
The author expresses the central message of the poem when she says the following quote: "I am still a night creature, but I will
luda_lava [24]

Answer:FALSE

Explanation: The Central message of a poem is the Theme of the poem, the poem is a poetry done to pass a particular message which may be regarding the present predicament of the people or to entertain. The poem the Desert Run was written in the year 1988 it was meant to express DISCRIMINATION AND HOPE. The poem was written by Mitsuye Yamada an activist of women rights and a Japanese National who lives in Seattle, Washington.

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Answer:

Explanation:

The solution is on the attached document.

5 0
4 years ago
When a force acts on an object from an angle other than either 0° or 180° to the direction of motion:
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You must find the component of the force before calculating
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antoniya [11.8K]

Answer:

A.

Explanation:

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