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Vlad1618 [11]
4 years ago
7

Why does a green leaf look green in our eyes

Physics
2 answers:
maria [59]4 years ago
8 0

Answer:

because the leaf absorbs all the other colors except for green. So the leaf reflects the green color which is what we see. that is why a leaf spears to be green.

Explanation:

floor gang aooh sub to pewdiepie

mamaluj [8]4 years ago
3 0
They look green because of the “special pair” of chlorophyll molecules.
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Air in the amount of 2 lbm is contained in a well-insulated, rigid vessel equipped with a stirring paddle wheel. The initial sta
vladimir1956 [14]

Explanation:

It is known that energy balance relation is as follows.

           \Delta E_{system} = E_{in} - E_{out}

Also,   W_{in} = \Delta U

so,       W_{in} = mC_{v}(T_{2} - T_{1})  

According to the ideal gas equation,

           T_{2} = T_{1} \frac{P_{2}}{P_{1}}

Putting the values into the above equation as follows.

             T_{2} = T_{1} \frac{P_{2}}{P_{1}}

                         = (520R) \frac{40psia}{30psia}

                         = 693.3 R

Now, we will convert the temperature into degree Fahrenheit as follows.

            693.3 - 458.67

          = 234.63^{o}F

From table A-2E_{a}

 C_{p} = 0.240 Btu/lbm R  and   C_{v} = 0.171 Btu/lbm

Now, we will substitute the energy balance as follows.

            W_{in} = mC_{v}(T_{2} - T_{1})  

                         = 2 lbm \times 0.171 Btu/lbm R (693.3 - 520)

                         = 59.3 Btu

Thus, we can conclude that final temperature of air is 59.3 Btu.

6 0
4 years ago
In which atmospheric layer are almost all water-based clouds formed?
luda_lava [24]

Answer and Explanation:

In troposphere layer all water based cloud formed. Troposphere is the lowest layer of the atmosphere. The troposphere is slightly unstable layer the weather occurs mainly in troposphere the most cloud formed in this layer troposphere is closed to the earth its depth varied according to the regions of the earth. Troposphere is more dipper in warmer region .

8 0
3 years ago
Find the frequency of the second overtones of a pipe 45 cm long if the pipe is closed at one end
Novosadov [1.4K]
C. Hoped this helped
6 0
3 years ago
Read 2 more answers
Which explanations provide support for continental drift theory? Check all that apply.
denis23 [38]
<h3><u>Full Question:</u></h3>

Which explanations provide support for continental drift theory? Check all that apply.

Dinosaurs lived on many continents.

Coal fields match up across continents.

Tropical plant fossils were found in Arctic areas.

Similar rock types are found across continents.

Evidence of glaciers can be found in South Africa.

Coal fields match up across continents.

Similar rock types are found across continents.

Tropical plant fossils were found in Arctic areas.

Evidence of glaciers can be found in South Africa.

<h3><u>Explanation:</u></h3>

The way the continents on the earth shifts its position is explained by the Continental drift theory. Alfred Wegener was the one who fist proposed this theory in 1912. This theory also explains how similar rocks are formed on the different continents and also  the reason why some of the animal and plant fossils looks similar.

The evidences that supports the continental drift theory can be Coal fields match up across continents. Fossils of Glossopteris supports the  theory of continental drift with coal fields  and coastlines . The land features, climate changes are some of the evidences that also supports the theory of continental drift.The evidences of the glaciers that can be found in South Africa also supports the explanation of the continental drift.

8 0
4 years ago
Pleassssssssse answerrrrrrrrrrrrrr How can you make electricity with a magnet? *
Contact [7]

Answer:

Spin a coil of wire inside a magnetic field or move a magnet inside a coil of wire.

Explanation:

This is according to Faraday's law of electromagnetic induction.

8 0
3 years ago
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