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ryzh [129]
3 years ago
12

The primary colors for paints are different for those used in a television because

Physics
2 answers:
ZanzabumX [31]3 years ago
8 0

Answer:

C. Both of A and C

Explanation:

Primary colors are colors that can be combined with one another to form other colors called secondary colors.

Light can be defined as a phenomenon that causes the sensation of vision. The primary colors with regards to light are: red, green and blue. Light is a form of an additive system where there is an addition of two or more primary colored lights to form other colors.

Paints are subtractive systems that produce color due to absorption and reflection of colors. A green paint appears green because it has absorbed other colors and reflects only green. Its primary colors are blue, yellow and green.

Therefore, paints reflect light and take out light from what light is shined onto them.

ANTONII [103]3 years ago
6 0

Answer:

the correct answer is A

Explanation:

In my opinion, the colors in both visual sources are different than in a painting, the color is the wave that is refracted when perceiving it with our human eye (this means that a painting of red color, absorbs all the waves of the color ranges except the color red and that refracted wave is captured by our eye and we visualize it that way) on the other hand, on the television screen or other screens the colors have the same system that we explain with the paintings but they also have more luminosity or greater value, intensity since they emit or emit light and greater brightness.

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Alika [10]

Answer:

Where is the comments??

Explanation:

3 0
3 years ago
Read 2 more answers
8. When a 100 N bag of nails hangs motionless from a single vertical strand of rope, how many newtons of tension are exerted in
Svetllana [295]

If the bag is motionless, then it's not accelerating up or down.
That fact right there tells you that the net vertical force on it
is zero.  So the sum of any upward forces on it is exactly equal
to the downward gravitational force ... the bag's "weight".

If the bag is suspended from a single rope, then the tension
in the rope must be equal to the 100-N weight of the bag.

And if there are four ropes holding it up, then the sum of
the four tensions is 100N.  If the ropes have been carefully
adjusted to share the load equally, then the tension is 25N
in each rope.

8 0
3 years ago
Q6) A speed skater moving to the left across frictionless ice at 8.0 m/s hits a 5.0-m-wide patch of rough ice. She slows steadil
77julia77 [94]

Answer:

-2.8 m/s²

Explanation:

Acceleration: This can be defined as the rate of change of velocity The S. I unit of acceleration is m/s²

Using the equation of motion,

v² = u² + 2as................... Equation 1

Where v = Final velocity, u = initial velocity, a = acceleration, s = distance,

Given: v = 6.0 m/s, u = 8.0 m/s, s = 5.0 m.

Substituting into equation 1

6² = 8²+2(a)5

36 = 64 + 10a

10a = 36-64

10a = -28

10a/10 = -28/10

a = -2.8 m/s²

Note: a is negative because because the skater decelerate on the rough ice

Hence the magnitude of her acceleration is  = -2.8 m/s²

6 0
3 years ago
It takes 5.0 seconds for a wave with a wavelength of 2.5 m to travel past your location. What’s the period of the wave. What is
Anna35 [415]
(a) Period of the wave
The period of a wave is the time needed for a complete cycle of the wave to pass through a certain point.
So, if an entire cycle of the wave passes through the given location in 5.0 seconds, this means that the period is equal to 5.0 s: T=5.0 s.

(b) Frequency of the wave
The frequency of a wave is defined as
f= \frac{1}{T}
since in our problem the period is T=5.0 s, the frequency is
f= \frac{1}{5.0 s}=0.2 Hz

(c) Speed of the wave
The speed of a wave is given by the following relationship between frequency f and wavelength \lambda:
v=f \lambda = (0.2 Hz)(2.5 m)=0.5 m/s

8 0
3 years ago
A 5 kg ball takes 13.3 seconds for one revolution around the circle. What's the magnitude of the angular velocity of this motion
Tcecarenko [31]

Answer: 0.47 rad/sec

Explanation:

By definition, the angular velocity is the rate of change of the angle traveled with time, so we can state the following:

ω = ∆θ/ ∆t

Now, we are told that in 13.3 sec, the ball completes one revolution around the circle, which means that, by definition of angle, it has rotated 2 π rad (an arc of 2πr over the radius r), so we can find ω as follows:

ω = 2 π / 13.3 rad/sec = 0.47 rad/sec

6 0
3 years ago
Read 2 more answers
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