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babunello [35]
3 years ago
7

The color aftereffects phenomenon predicts that, after staring at a bright red rectangle for a period of time, you will see a __

___ when you look away at a white background.
Physics
1 answer:
Serjik [45]3 years ago
8 0

Answer:

The answer for this is Green Rectangle.

Explanation:

The hue after effects theory suggests that as you glance away at a white background, you can see a <em>Green Rectangle</em> after looking at a bright red rectangle for a period of time.

All this is an after-image consequence. Afterimage is a form of optical illusion in which, even after exposure to the original image has ended, an picture appears to appear momentarily.

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What is the magnitude of an electric field that balances the weight of a plastic sphere of mass 2.1 g that has been charged to -
Liula [17]

Answer:

Electric field, E=6.86\times 10^6\ N/C

Explanation:

It is given that,

Mass of sphere, m = 2.1 g = 0.0021 kg

Charge, q=-3\ nC=-3\times 10^{-9}\ C

We need to find the magnitude of electric field that balances the weight of a plastic spheres. So,

ma=qE

a = g

E=\dfrac{mg}{q}

E=\dfrac{0.0021\ kg\times 9.8\ m/s^2}{-3\times 10^{-9}\ C}

E=6860000\ N/C

or

E=6.86\times 10^6\ N/C

Hence, the magnitude of electric field that balances its weight is 6.86\times 10^6\ N/C. Hence, this is the required solution.

4 0
3 years ago
A garage door opener has a power rating of 350 watts. If the door is in operation for 30 seconds, how many joules of energy are
Ksju [112]
Because of the hint we can conclude what equation we need to solve this problem. We have power and duration that means that we need to express energy:

1 joule = 1watt * 1 second
or
E (energy) = P (power) * t (time duration)
E = 350 * 30 = 10500 joules.
7 0
2 years ago
A tape diagram. 0 dollars is 0 percent. Question mark dollars is 23 percent. 52 dollars is 100 percent. Jared has earned 23% of
Jobisdone [24]

17.15 :)

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3 years ago
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Which part of this model represents a layer made of liquid rock that produces
goblinko [34]

Answer: C- the outer core

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7 0
3 years ago
Friction force affects the work done by the applied force.<br><br>T OR F ​
lakkis [162]

Answer:

TRUE.

Explanation:

YES IT EFFECTS.

IT MAY HELP YOU.

7 0
2 years ago
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