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Murrr4er [49]
2 years ago
5

The Trichromatic Theory of Color Vision states there are three different cones that process different wavelengths of light. Thes

e wavelengths correspond to the colors: Group of answer choices
Physics
1 answer:
sladkih [1.3K]2 years ago
7 0

These wavelengths correspond to the colors: green, red, blue

  • What is wavelength:

The wavelength of visible light determines the color that the light appears. Light with the longest wavelength appears red, and light with the shortest wavelength appears violet.

  • what is The Trichromatic Theory of Color Vision:

Trichromatic theory states that there are three types of receptor cells in the retina, which reacts to the light of three different wavelength.

These receptor cells are responsible for perception of colors.

A spectrally pure or monochromatic color can be produced by a single wavelength.

According to Trichromatic theory of color vision,

The colors are: green, blue and red.

Learn more about Trichromatic Theory here:

brainly.com/question/5732534

#SPJ4

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The 1.19 kg head of a hammer has a speed of 8.4 m/s just before it strikes a nail (Fig. 14-13) and is brought to rest. Estimate
KATRIN_1 [288]

Answer:

The temperature rise is 143.9\ K.

Explanation:

Given the mass of the hammer (m) is 1.19 kg.

And the speed of the hammer (v) is 8.4 m/s.

We need to find the temperature change of iron nail having 20 hammer blows.

First, we will find the kinetic energy of the each blow of hammer.

K.E=\frac{1}{2}mv^2

K.E=\frac{1}{2}\times 1.19\times 8.4^2=41.99\ J

For 20 such blows, the kinetic energy will be

20\times K.E=20\times 41.99=839.8\ J

Let us assume that the nail absorbs all the kinetic energy. So, this 839.8 J will be converted into heat energy (Q).

Now,

Q=839.8\ J

Also, we know that

Q=mc\Delta_T

Where,

m is the mass of the nail, which is 13\ g=\frac{13}{1000}=0.013\ kg

c is the specific heat capacity of iron, which is 449 J/kg.K

\Delta_T is the change in temperature.

Plug these value we get,

Q=mc\Delta_T\\839.8\ J=(0.013\ kg)(449\ J/kg.K)\times\Delta_T\\\Delta_T=\frac{839.8}{0.013\times 449}\\\\\Delta_T=143.9\ K

We can see the temperature rise is 143.9 K.

4 0
4 years ago
If 190 grams of water is cooled from 42.7°C to 21.2° C how much energy was lost by the water?
yanalaym [24]

Answer:

Energy lost by the water is 17.1 x 10³ J .

Explanation:

Specific heat is defined as the amount of energy per unit mass needed to raise the temperature of the substance by a one degree Celsius.

Heat energy gain or loss by any substance is given by :

Q = m x C x ( T₁ - T₂ )     .....(1)

Here m is the mass of the substance, C is specific heat of the substance and T₁ and T₂ are the initial and final temperature of the substance.

According to the problem,

Mass of water, m = 190 gm

Specific heat of water, C = 4.186 J gm⁻¹ ⁰C⁻¹

Initial temperature, T₁ = 42.7⁰ C

Final temperature, T₂ = 21.2⁰ C  

Substitute these values in equation (1).

Heat energy loss by water = 190 x 4.186 x ( 21.2 - 42.7 )

                                            =  -17.1 x 10³ J

In the above value, negative sign denotes the loss in energy.

7 0
4 years ago
Which statement about a right triangle is NOT true?
Alex787 [66]

Answer:

The square of the hypotenuse is equal to the sum of the squares of the other two lengths.

Explanation:

only one that made sense

6 0
3 years ago
Read 2 more answers
Assume that you have 0.480 mol of N2 in a volume of 0.700 L at 300 K .
Svetach [21]

Answer:

1) 16.88 atm

2) 34.47 atm

Explanation:

Data:

Volume=0.700L

Temperature = 300K

Number of moles=0.480 mol

Ideal gas constant=0.082057 L*atm/K·mol

1) The ideal gas law is:

PV=nRT (1)

with P the pressure, T the temperature, n the number of moles, V the volume and R the ideal gas constant , so solvig (1) for P:

P=\frac{nRT}{V}

P=\frac{(0.480)(0.082057)(300)}{0.700}=16.88 atm

2) The vander Walls equation is:

(P+\frac{a}{V^{2}})(V-b)=RT

solving for P

P=\frac{RT}{V-b}-\frac{a}{V^2}=\frac{(0.082057)(300)}{0.700-0.0387}-\frac{1.35}{0.700^2}=34.47 atm

4 0
3 years ago
Four-wheel drive trucks do not stop better on icy
MaRussiya [10]
It would be Newton’s second law of motion
8 0
3 years ago
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