easy one giving brainly if correct + detailed​

When light reflects from a surface, there is a change in its intensity. Thus, the correct option is C.

Light intensity is also known as luminous intensity. It is the amount of light which is falling on a surface over any given square foot or square meter in size. Light intensity can be measured in terms of lumens per square foot (foot candles) or lumens per square meter (lux).

Light intensity is affected by various factors such as surface on which the light rays strike, the medium, reflection, and the refraction of light.

When a ray of light reflects from a surface, there is a change in the intensity of light and also the speed of light in that medium.

Therefore, the correct option is C.

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Your question is incomplete, most probably the complete question is:

When light reflects from a surface, there is a change in its:

a. frequency

b. velocity

c. intensity

d. phase

Answer:

Explanation:

Material:                 Cost ($):          Quantity:       Cost x Quantity:

Straw                          2$                    2x                   2$ x 2

Paperclip                   2$                     2x                   2$ x 2

String                          3$                    1x                    3$ x 1

Toothpick                  3$                      1x                   3$ x 1

Cup                            5$                      1x                    5$ x 1

Rubber band              5$                     1x                    5$ x 1

Tape                            7$                    1x                    7$ x 1

Paper                          7$                     1x                    7$ x 1

Tissue Paper             10$                    1x                   10$ x 1

Duct Tape                  10$                    1x                    10$ x 1

Cotton ball                 12$                    1x                     12$ x 1

Balloon                       15$                    1x                    15$ x 1

Paper Plate                15$                     1x                   15$ x 1

                                                                            total:  100$

hope this really helped!!

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Answer:Soil texture depends on the size of individual soil particles and is determined by the relative proportions of particle sizes that make up the soil. The texture affects the amount of water that can be absorbed for use by plants and animals.

Explanation:

Answer:

if i'm not mistaken that's either a plug in cord for a certain device, or what i am assuming to be a usb software cord.

Explanation:

Answer:

N133A

Explanation:black

Answer:

20

Explanation:

20m= 1 seconds

40m= 2 seconds

180÷9=20

A.l and lll

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Answer:

2 time

Explanation:

when distance double the work double

Speed= 60 m/s

for converting m/s to km/h =multiply with 5/18

for converting km/h to m/s= multiply with 18/5

so, 60 × ( 18/50) = 216 km/h

Answer:

just followed :)

Explanation:

Answer:

1. 60m

4. its speed is 20m/s . gravity is 10m/s . 20 ÷ 10 = 2 seconds after these 2 sec are over the velocity will be zero thus it would have fallen.

Explanation:

Am sorry these is what i could answer but i will try to research and get answers for the rest of the questions, hope this helps

Answer:

4.3 m/s^2

Explanation:

a = vf - vi / t

26 - 20 / 1.4

= 4.28 ( round your numbers)

Given what we know about the Kepler space program, we know that the astronomers discovered that Earth-sized planets are more common than we imagined.

Kepler was launched with the intention of getting a closer look at other planets outside of our solar system using enhanced photometrics.

The idea behind this launch was to discover more Earth-sized planets, preferably within the habitable zone of their central star.

What this mission showed astronomers, is that Earth-sized planets are more common than we could have imagined, Kepler proved this by finding over 2,662 planets to date.

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Answer:

frequency

Explanation:

the closer the waves are the higher the pitch of the sound.

The graph can be plotted based on the given information which are given

in pairs (velocity and time), and which the coordinate pairs are formed.

Reasons:

The given data are presented in a tabular form as follows;

[tex]\begin{tabular}{|c|c|c}\underline{Duration (Minutes)} & \underline{Speed (km/h)}\\0 - 5 &6 \\5 - 8&2\\8 -13&0&\\13- &2&\end{array}[/tex]

The velocity time graph can be plotted using the above table values on

MS Excel using the above table elaborated as follows;

[tex]\begin{tabular}{|c|c|c}\underline{Duration (Minutes)} & \underline{Speed (km/h)}\\0 &6 \\5&6\\5 &2\\8&2\\8&0\\13&0&\\13 &2&\end{array}[/tex]

The attached graph can then be created using the Insert → Chart menu

after selecting the data above inputted in the spreadsheet button on MS

Excel.

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Explanation:

Notice it says above that the largest optical telescopes in the world are reflectors. Optical telescopes collect visible light. Even larger telescopes are built to collect light at longer wavelengths radio waves.

The universe is made of a lot of galaxies. The likely explanation for a galaxy having more than one nucleus is that the galaxy must have swallowed several smaller galaxies that were its neighbors.

The universe is known to have a very largest galaxy called the giant elliptical galaxy that is made up of about a trillion stars.

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Answer:

Photons

Explanation:

I just know

Discrete packets of kinetic energy in light are called photons. Photons are fundamental particles of light and electromagnetic radiation. The correct answer is photons.

Photons are fundamental particles of light and electromagnetic radiation. They carry energy in discrete quantities, known as quanta or packets, and exhibit both wave-like and particle-like properties.

The energy of a photon is directly proportional to its frequency, and inversely proportional to its wavelength. When light interacts with matter, it can transfer its energy to the particles it interacts with, leading to various phenomena such as absorption, reflection, and emission.

Therefore, Discrete packets of kinetic energy in light are called photons.

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To assess your health status, it is necessary to take the physical fitness test, which will determine how healthy you are, according to some questions, such as how often you have seen a doctor, how is your heart, etc.

Some sample questions to assess your health status are:

Therefore, the physical fitness test is necessary so that a person can perform physical activities safely, avoiding injuries and other associated risks.

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Answer:

Ok I'm not 100% on this one but, try 3 lifes sorry if u get it wrong D:

Explanation:

Answer:

A Wave red

Explanation:

Answer:

Answer: Wave E

Explanation:

Why because if you put each in a strait line it would have been longer

hope it helps

Regardless of acceleration, average velocity can always be calculated from its definition:

average velocity = (change in position) / (change in time)

It's only when acceleration is constant that the average velocity can be computed using initial and final velocities. Under this condition,

average velocity = (initial velocity + final velocity) / 2

Answer:

A. Longer wavelengths and less dangers

Explanation:

Radio waves are at the lowest end of the EM spectrum, they have the longest wavelength of any other EM waves, the lowest energy and, accordingly, the lowest frequency;

Their low energy and frequency means they pose little risk of harm or danger as they don't get absorbed by human being.

Answer: yess sirrrrrrrr

Explanation:

Answer:

oou I like it! u did a good job ^^

Answer:

4

Explanation:

Answer:

i am pretty sure that it is 4

You can't. Velocity and acceleration measure two different things, so their units are incompatible. It's like asking, "How many meters does this book weigh?"

Maybe you mean "find" acceleration using given velocities, or a velocity function?

We will find that the effective area that must be used to get the desired power is 3,333.33 m^2

The information we have is:

power needed = 1.00 MW = 1,000,000 watts

Energy of the Sun = 1,000 W/m^2

We know that the system has an efficiency of 30%, then per meter square, the energy converted is:

E = 0.3*1,000 W/m^2 = 300 W/m^2

Now we need to find the area (in meters squared) such that:

A*E  = 1,000,000 watts

A*(300 W/m^2) =  1,000,000 watts

A = (1,000,000 watts)/(300 W/m^2) = 3,333.33 m^2

So the effective area that must be used is A =  3,333.33 m^2

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Answer:

Solution given:

work done=340J

displacement(d)=75m

force[f]=?

we have

work done =Force*displacement

340=Force*75

Force=340/75

Force=4.5N

Given,

Work done = 340 J

Distance = 75 m

Force = work done / distance

Force = 340 / 75

Force = 4.533 Newton (N)

______

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