Urgent! Based on the diagram below, what color will each pigmented paper appear to be to an observer?

Examples A and B will both appear blue.

Examples A and B will both appear green.

Example A will appear greenish-blue, while Example B will appear green.

Example A will appear green, while Example B will appear greenish-blue.

Example A will appear green, while Example B will appear greenish-blue.

Explanation:

The color of an object depend on which part of the visible light it reflects towards the observer. Visible light is made up of seven colors: Violet, Indigo, Blue, Green, Yellow, Orange, and Red (VIBGYOR). If all the colors will be reflected object will appear white. If all the colors are absorbed the object appears black. In example A, only green color is being reflected so it will appear Green.

In example B, green and blue are being reflected so the object will appear a mix of green and blue. This color is cyan (greenish blue).

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Explanation:

n order to be able to determine the force that accelerates the bullet, you first need to determine the bullet's acceleration.

You know what the length of the gun barrel and what the bullet's exit velocity are, which means that you can write

v

2

exit

=

v

2

0



=0

+

2

⋅

a

⋅

l

Solve the above equation for

a

to get

a

=

v

2

exit

2

⋅

l

a

=

800

2

m

2

s

2

2

⋅

0.75

m



=75 cm

=

426,666.7 m/s

2

This means that the force that's accelerating the bullet is equal to

F

=

m

⋅

a

F

=

0.015 kg



=15 g

⋅

426

,

666.7

m

s

2

=

6400

kg

⋅

m

s

2



=Newton

=

6400 N

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