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avanturin [10]
3 years ago
14

Anna studies the color of her bedroom wall using different lights. In sunlight, she sees that the wall is white. Anna darkens th

e room and shines a beam of light that includes all the wavelengths of visible light onto the wall. In this light, what's the wall color that Anna sees?A.) no colorb.) all seven colors of visible lightc.) redd.) whitee.) black
Physics
2 answers:
vichka [17]3 years ago
7 0

Anna studies the color of her bedroom wall using different lights. In sunlight, she sees that the wall is white.

Then she gets an idea for an experiment. Anna darkens the room and shines a beam of light that includes all the wavelengths of visible light onto the wall.

In this light, the wall appears <em>white</em>.  (Choiced)

AlexFokin [52]3 years ago
6 0

Answer:

white

Explanation:

Anna will see aw white light on the wall. This is possible for a simple reason: Light, as we see it is a mixture of lights of different wavelengths. The different wavelengths mix and merge to give light that appears to be monochromatic - meaning of one wavelength. This single wavelength light is also of a single color. Inadvertently, the light will appear to be white.

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Determine the resultant moment of the forces acting about the x, y, and z axes. Suppose that f1 = 200 n, f2 = 60 n, f3 = 115 n,
SpyIntel [72]

Based on the forces acting on the axes, the resultant moments will be (345, 400, 600 N·m)

<h3>What would be resultant moment about x-axis?</h3>

= F₃ x 3

= -115 x 3

= -345 N·m

<h3>What would be resultant moment about y-axis?</h3>

= F₁ x 2

= -200 x 2

= -400 N·m

<h3>What would be the resultant moment about z-axis?</h3>

= F₄ x 2

= -300 x 2

= - 600 N·m

In conclusion, the resultant moment about x, y, and z axes is (345, 400, 600 N·m)

Find out more on resultant moments at brainly.com/question/6278006.

5 0
2 years ago
How can understanding velocity help to prevent a mid-air collision
dsp73

Answer:

To maintain enough time to prevent a collision, a system operating in air traffic where aircraft speed does not

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7 0
2 years ago
Which is not an issue with waste from nuclear energy?
Sergeeva-Olga [200]

Answer:

A) atmospheric pollutants. Nuclear power plants do not produce air pollution as carbon dioxide, sulfur dioxide.

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3 0
3 years ago
A car accelerates uniformly from rest at a speed of 1.67 ft s^2 over a distance of 5 yards.What is the acceleration of a car?
Nina [5.8K]

Answer:

a= 17.69 m/s^2

Explanation:

Step one:

given data

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u= 0m/s

v= 23m/s

distance= 30m

Step two:

We know that

acceleration= velocity/time

also,

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23= 30/t

t= 30/23

t= 1.30 seconds

hence

acceleration= 23/1.30

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5 0
2 years ago
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