Answer:
The speed (A) will decrease
V = F λ (the frequency F remains the same to maintain continuity across the interface)
Therefore (C) the wavelength must decrease
Note: n = speed of light in air / speed of light in medium
When a light wave enters a medium of greater optical density the two characteristics that are: (A) Speed, and (C) Wavelength will decrease in the wave.
It is given that a light wave enters a medium of greater optical density.
It is required to find the characteristics that will decrease.
What is light?It is defined as the type of waves such as sound waves or ocean waves but waves carry energy. Light does not need any medium to travel.
We know that:
[tex]\lambda =\frac{v}{f}[/tex]
Where Lamda (λ) = Wavelength
([tex]v[/tex]) = Speed of wave
[tex](f)[/tex] = Frequency of the wave.
The frequency remains the same to maintain continuity across the interface.
thus Speed of wave and Wavelength will decrease.
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List forms of energy which you use from morning when you wake up till you reach the school?
Answer:
mechanical energy, chemical energy, electrical energy heat energy sound energy light energy
.......
What does the letter I represent?
An a.c. supply is connected to a wire stretched between the poles of a magnet. Which way does the wire move?
Write an evaluation paragraph using the rubric.
Video link: https://contentstore.ple.platoweb.com/content/sharedmedia/Tracker/applications/car-round-trip/car-round-trip.html
I'll give an extra 100 point.
Answer:
There is an idea of a Patrick Bateman, some kind of abstraction, but there is no real me, only an entity, something illusory, and though I can hide my cold gaze and you can shake my hand and feel flesh gripping you and maybe you can even sense our lifestyles are probably comparable: I simply am not there.
Explanation:
What is the main difference between a gas and a
plasma?
What were the two robots that landed on and explored mars in 2004 called?.
Answer:
Spirit and Opportunity were the names suggested by the winner of the contest -- a third-grader from Arizona. Spirit landed on Mars on January 3, 2004. Opportunity is scheduled to land on Mars on January 24, 2004. These robotic explorers are able to move much better than the 1997 Mars Pathfinder rover.
During which process do trees remove carbon dioxide from the air?
A)deforestation
B)respiration
C)photosynthesis
D)both a and b
C) photosynthesis
During the process of photosynthesis, trees absorb carbon dioxide from the air.
A man wears convex lens glasses of focal length 30cm in order to correct his eyes defect. Instead of the optimum 25cm, his distance of distinct vision is?
Answer:
14 cm
Explanation:
F = (frac{uv}{u – v})
F = +ve
v = -ve
30 = (frac {25 {times} (-v)}{25 – (-v)})
v = (frac {25 {times} (-v)}{25+v})
v = 14cm
(Note that either negative or positive values go to show the positioning and hence, they are not a strong necessity in your final answer.)
So happy that i could help you!
Now this question could turn out to be easy for you!!
What are the units of electric potential difference?.
Manuel and Daniel are playing catch with a football. They are standing 30 meters apart. Manuel
throws the ball to Daniel, and it takes 3 seconds for the ball to reach Daniel. How fast is the ball
going?
Answer:
what is the meaning of non cooperation
How do stars keep their spherical shape? The force of pressure pushing inward is balanced by the force of gravity pulling outward. Pressure from the rocky surface molds the gas into a spherical shape. The force of gravity pulling inward is balanced by the force of pressure pushing outward. The gravitational force of a star's core pulls its molecules into a ball.
Answer: C
Explanation:
The fusion pressure inside of the stars core creates an outward force acting on the star. This pressure is balanced by the inwards gravitational force that the core of the star is experiencing.
The data table shows the world population every five years between 2000 and 2015. Based on these data, what happened to the world population during this time frame?
The populaton of the world increase at a higher rate due to more children were born as compared to death ratio.
What happened to the world population during this time frame?The world population during this time frame, the world population increase at a higher rate because of unawareness and lack of education. People produce more children without knowing their impact on the environment and earth system.
So we can conclude that the populaton of the world increase at a higher rate due to more children were born as compared to death ratio.
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Answer:
The population got a bit older
Explanation:
Assuming your question is the same as mine, that's the answer I got. This would've been way easier to answer if you at least included answer choices.
Which of the following is true about the input and output forces of a screw that is inserted into a block of wood? (Select all that apply) A)The input force on the screw is greater than the output force. B)The input force is in the same direction as the output force. C)The input force is in a different direction than the output force. D)The input force is the same as the output force. E)The input force on the screw is less than the output force.
The true statement about the input and output forces include the following:
The input force on the screw is greater than the output force.The input force is in a different direction than the output force.What is Force?
This is defined as an influence which can cause an object with mass to change its velocity.
For a screw to be inserted into a block of wood, the input force on the screw has to be greater than the output force as a result of both forces being in opposite direction to one another.
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A small planet is discovered to have a layer of electrically charged dust floating at 1000m above the surface because of the balance between the gravitational forces and electrical forces exerted on the dust by the planet. If the dust layer is moved to 2000m above the surface, what will happen to the dust, and why
As the dust layer is moved to 2000m above the surface, the gravitational force of the particle will decrease due to increase in the distance of separation between the layer of dust particle and the planet.
Balanced force between gravitational force and electric forceThe balanced force between gravitational force of the planet and electric force of the dust particles creates equilibrium position for the dust particles.
Gravitational force of the particlesAccording Newton's law of universal gravitation, the force of attraction will decrease with increase in the distance of separation.
[tex]F = \frac{GMm}{R^2}[/tex]
Thus, as the dust layer is moved to 2000m above the surface, the gravitational force of the particle will decrease due to increase in the distance of separation between the layer of dust particle and the planet.
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Which statement about white light is TRUE?
White light as no color.
White light is a mixture of all the colors of light.
The light that comes OUT of a prism is white.
White light is always reflected.
Answer:
mixture of all colors of ligjt
Answer:
White light is a mixture of all the colors of light.
Explanation:
I took the test.
Which statement is true?
Which statement is true?
A. The combustion of biomass can replace fossil fuels in conventional power plants.
B. Hydroelectric energy uses the energy from the sun, which is a renewable resource.
C. Oil is a non-renewable resource that is hardly ever used, so there is not a concern of depleting the Earth's supply.
D. Solar energy is a non-renewable resource that is used by many countries all over the world.
1. Is it possible for a black hole to "eat" an entire galaxy?
2. Does anything that goes inside the black hole comes out?
Pls write your own answers
Answer:
A black hole cannot eat an entire galaxy.
Some scientists believe that stuff that goes into a black hole might go into another dimension but no one has been able to prove that theory, so most believe that any matter that enters a black hole is torn apart into the smallest components possible and eventually squeezed into a singularity
Explanation:
Hope this helps=) Keera DB. I
a boat has a speed of 2 m/s. it accelerates for half a minute to reach a speed of 8 m/s. work out the accelerattion of the boat
Answer:
0.13 m/s^2
Explanation:
acceleration is the change in velocity over time
So, 8-2=4
4/30=0.13
Brainliest pls
he right answer is "0.2 m/s²"
Answer explanation:
Acceleration = change in velocity / time
= (8 m/s – 2 m/s) / 30s
= 0.2 m/s2
Hope it helps
mark as brainliest please✨✨
2. The frequency of a sound is 1621 Hz. If the temperature is 30.0 °C, what is the wavelength
of the sound wave?
What is the frequency between two turning forks if one has a frequency of 520 Hz and 528 Hz?
Answer:
Two tunnig fork of frequency 520 Hz and 524Hz are vibrated together. It means beats form due to it .
f₁ = 524 Hz
f₂ = 520 Hz
Beat period = 1/number of Bea are formed per unit time
= 1/(f₁ - f₂)
= 1/(524 - 520)
= 1/4 sec
Now, time inveral between successive maximum and minimum intensities = beat period= 1/4 sec
Explanation:
Good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.
Temperature and energy ➡️ Surface temperature and ocean temperature
Atmospheric composition ➡️ Carbon-dioxide and other greenhouse gases
Ocean and water ➡️ Ocean acidification and sea level
Cryosphere ➡️ Sea ice and galciers
Here are the answers
Temperature and energy:-Ocean and surface temperatureAtmospheric composition:- Carbon dioxide and other greenhouse gasesOcean and water-Ocean acidification and sea level.Cryosphere :-Sea ice and glaciersIntrusive igneous rocks:_____________
A. are fine-grained because they cooled slowly.
B. are never seen by humans, because they form deep in the Earth and are never exposed at the surface.
C. are rocks like basalt, andesite, and rhyolite.
D. cool slowly and are coarse-grained.
Answer:
D
Explanation:
Contrary to answers a, b, and c, volcanic rocks, like basalt, andesite, and rhyolite, are fine-grained which are extrusive igneous rocks.
Intrusive rocks, also called plutonic rock, are coarse-grained and cool slowly without ever reaching the surface. While intrusive igneous rocks do solidify in the earth they do eventually become exposed by erosion.
I hope this helps
Correct me if I'm wrong.
pls help me to answer this
Answer:
Here you go
Explanation:
1. Radio
2. Gamma
3. Ultraviolet
4. Infrared
5. Visible
6. X-rays
7. Microwave
2. Two billiard balls, each with a mass of 0.35kg, strike each other head on. One ball is initially moving left at 4.1 m/s and ends up moving right at 3.5m/s. The second ball is initially moving to the right at 3.5ms. find that the velocity of the second ball? Is this collision elastic or inelastic?
m1v1+m2v2=m1v1'+m2v2'
m(v1+v2)=m(v1'+v2')
v1+v2=v1'+v2'
left=-, right=+
-4.1+3.5=3.5+v2'
v2'=-4.1
this collision elastic
What happens when a light wave is refracted?
The waves spread out.
The wave changes direction.
The wave is scattered.
The wave changes frequency.
Given what we know, we can confirm that when a light wave is refracted, it changes direction.
What is refraction?Refraction is a term used to explain and describe the change in direction of a light wave as it passes through a medium. This change in direction is caused by the change in speed of the light wave entering a new medium.
Therefore, we can confirm that when a light wave is refracted, it changes direction.
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Calculate the MOMENTUM of a football weighing 0.34kg being thrown at a speed of 64.6m/s.
Answer:
The value of the momentum is 5.8 kg meters per second.
Explanation:
Hope this helps :)
A car travels at a speed of 50m/s for 20s. Calculate the distance covered
(m)
Answer:
1000m
Explanation:
Distance = speed x time = 50x20 = 1000
Answer:
The answer is 1000m
Explanation:
Given;A car travels at a speed of 50m/sTime = 20sTo Find;Distance = ?Formula;Distance = Speed × TimeNow,
D = 50m/s × 20s
D = 1000 m
Thus, The car travels 1000 m.
-TheUnknownScientist 72
can someone please help
Answer:
could you probably expand on the question?
Explanation:
A woman on a train traveling at 32 m/s. The train passes a factory whose whistle is blowing at 288 Hz. What frequency does the woman hear as the train approaches the factory?
Answer:
0.11 m
Explanation:
speed is equal to wavelength multiplied by frequency
So, 32= w × 288
32/288= 0.11
A block of wood of area 0.2 m^2 creates a pressure of 500 Pa. What is its weight?
Question :-
A block of wood of Area 0.2 m² creates a Pressure of 500 Pa . What is its Weight ?Answer :-
Weight of the block is 100 N .[tex] \rule {180pt} {2pt} [/tex]
Given :-
Area = 0.2 m²Pressure = 500 PascalTo Find :-
Weight = ?Solution :-
As per the provided information in the given question, we have been given that the Area of the block is 0.2 m² . Its Pressure is given 500 Pascal . And, we have been asked to calculate the Weight of that block .
For calculating the Weight , we will use the Formula :-
Weight = Pressure × AreaTherefore , by Substituting the given values in the above Formula :-
⇒ Weight = Pressure × Area
⇒ Weight = 500 × 0.2
⇒ Weight = 100
Hence :-
Weight = 100 N .[tex] \underline {\rule {180pt} {4pt}} [/tex]