Which optical devices spread light apart?
A. A and B
B. A and D
C. B and D
D. B and C

Which Optical Devices Spread Light Apart?A. A And BB. A And DC. B And DD. B And C

Answers

Answer 1

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Actually Welcome to the Concept of the Optical Devices.

Now basically here the devices that can spread light over apart are the CONCAVE LENS and Convex mirror.

so the Answer is

C. B and D

Answer 2

The optical devices that spread light apart is B and D.

What are optical devices?

Optical devices are implements or instruments that process,analyses light waves and interprete it in order to enhance an image for visibility and determine the features of such image.

Therefore, The optical devices that spread light apart is B and D.

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Related Questions

What two gases in the atmosphere do animals and plants need to breathe and grow?

Answers

Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Carbon Dioxide for plants and Oxygen for animals

Discuss one component of your school's recycling system that could be automated and predict the economic impact.

Answers

One component of my school's recycling system that could be automated is the sorting of recyclables. Currently, the school relies on students and staff to sort recyclables into the appropriate bins, which can be time-consuming and may result in contamination if materials are not sorted properly.

Automating the sorting process with a machine or conveyor belt system could improve the efficiency and accuracy of the recycling system. It could also potentially reduce labor costs associated with manual sorting.

The economic impact of automating the sorting process would depend on the initial cost of the equipment and any associated installation or maintenance costs. However, over time, the improved efficiency and accuracy of the system could result in cost savings for the school. Additionally, the increased efficiency of the system could potentially lead to increased recycling rates, which could result in cost savings for waste disposal and potentially generate revenue through the sale of recycled materials.

Answer:

Our school has color coded virtual trash cans. For example, a trash can for only paper will only accept paper items, if the item put inside is not paper, it will litter it out and all students have cleaning duties throughout the week so even if you or someone litters you’ll probably have to clean it up at some point anyways. I honestly think it’s very cool. (i wish this was true smh).

Which of the following forces has not changed Earth's surface?

folding
erosion
weathering
gravity

Answers

Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.

Explanation:

Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping

The answer is D. Gravity

what is a force that is caused by air that slows objects down?

Answers

Friction drag force causes objects to slow down as they move through a fluid, such as air or water.

Answer:

Drag

Explanation:

Drag is also used to slow down the speed of a rocket ship after using the thrusters.

The graph below plots the temperature and luminosity of stars on the main sequence. (2 points)

Four locations (A, B, C and D) are graphed on a curve representing luminosity vs temperature. The curve begins are high luminosity and high temperature decreasing in luminosity and temperature as it approaches the right side of the curve. From left to right are points representing Location A, Location B, Location C and Location D.

At what location is the star with the least initial mass most likely to be found?
Location A
Location B
Location C
Location D

The graph below plots the temperature and luminosity of stars on the main sequence. (2 points)Four locations

Answers

Answer:

location A

Explanation:

Samantha is investigating the densities of several liquids. Which action is the result of her creative thinking.

Samantha is investigating the densities of several liquids. Which action is the result of her creative

Answers

Answer: B

Explanation: because it just is

We can use standard data of densities of liquids to investigate them otherwise we can conduct small experiments with comparing the densities of commonly available  liquids used in foods.

What is density?

Density is the measure of the mass per volume. Mathematically it is written as the ratio mass/volume. This physical quantity provide insights to determine how denser it is and thus the flow of the liquid also.

Different liquids have different densities. Water has a density of 1 g/L at normal temperature and it is maximum at 4⁰C. Therefore, density of a liquid depends on the temperature, pressure and the bond type also.

We can compare the densities of common liquids that are available in our home such as honey, oil, kerosene, petrol, milk, curd etc.

Each have different densities based on their mass and volume taken. To determine the density, we can first take a known mass of the liquid to a container of known volume and thus density can be calculated.

The calculated densities can then be compared with  the standard values available in record. Thus both option B and D are correct.

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Which of these is NOT a position in hockey?

a
Goalie
b
Wing
c
Defenseman
d
Shortstop

Answers

Answer:

shortstop

Explanation:

cause there are 5 positions ( i think)

Center, Wingers, Defensemen, Goalie, Forwards.

¯\_(ツ)_/¯

Answer:

d.shortstop

Explanation:

divided by the resistance is known as _____.
a. Einstein's equation
b. Faraday's law
c. Newton's law
d. Ohm's lawaces that are not moving past each other.

Answers

Answer:

Ohm's lawaces that are not moving past each other.

Explanation:

I think...

Let Me Know If It's In fact Correct

It is known as Ohm’s law aces that are not moving past each other

When you drop something, first of all it accelerates.
The faster it falls, the bigger the force of ______ that acts on it.
choose from the list to complete the sentence:
friction gravity air pressure

note: apparently the answer is friction but it doesn't make sense to me so please explain.

Answers

The faster an object is going, the more resistance there will be. An example of this would be if you're running the faster you run, the more air is going against you.

I hope this helps!

I think its pressure, please dont take my word for it, take this with a grain of salt, Have a great day<3

Help please answer my previous and question and this one! Random answers and links will be reported.
Heat can be transferred from one object to another by ______.
A Conduction
B Translation
C Condition
D Restriction

Answers

Heat can be transferred in three ways: by conduction, convection, and by radiation. Only conduction is on the options so it would be A

A. Conduction

Conduction is the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.

PLEASE HELP ASAP
Describe the structure of the inner core? The inner core is made of no solid rocks. The inner core is made of liquid metal. The inner core contains melted rocks. The inner core is made of solid iron and nickel.

Answers

The inner core is made up of the heaviest metals, like iron and nickel. The inner core is solid, but the outer core is liquid.

Answer:

The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1,220 kilometers (758 miles). Temperature in the inner core is about 5,200° Celsius (9,392° Fahrenheit). The pressure is nearly 3.6 million atmosphere (atm)

Why does height affect bounce efficiency?

Answers

Because the height increases the speed over distance and time.

How do we know there has not been an increase in the number of earthquakes? Officials from the U.S. Geological Survey, the government agency that keeps track of earthquakes, point to statistics. On average, there have been no more earthquakes so far in 2010 than there were in previous years.

What Happens During Earthquakes?

In reality, it's not the number of quakes that has gained our attention, but the devastating impact quakes can have. Earthquakes are very natural—it's inevitable that they'll happen because of the way the planet works. The earth's surface is made up of tectonic plates that fit together like puzzle pieces and are always moving past each other. When two of the plates' edges get caught, stress builds up at the fault line—the crack between the plates. When the plates are finally able to break free of each other, the stress is released, and an earthquake occurs. Earthquakes of varying strengths happen every day, usually at fault lines. Some of these quakes have a high magnitude, while others are relatively weak. But it's often where an earthquake takes place that determines whether it will be something that goes largely unnoticed, or a disaster that affects thousands of people.

What Is Changing?

In the past, earthquakes were not as much of a problem because Earth's population was smaller, and cities were less populated.

"Look at some of the big [earthquakes] recently," said Debarati Guha-Sapir of the World Health Organization. Guha-Sapir cited some earthquakes that took place in areas where the population had increased in recent years, making the quakes more serious. "Had the Izmit or Bhuj quakes [of 1999 and 2001] happened 30 years ago, the events would have been relatively insignificant, as the [populations] of these cities were a third of what [they were when the earthquakes happened]. Increasing population density makes a small event into a big one."

Some of the earthquakes that took place in early 2010 occurred in highly populated areas, as well. More people are moving into megacities that happen to be built on fault lines—and many cities are on fault lines. Of the 130 cities with more than one million people, more than half are in earthquake zones, making them more prone to earthquakes.

In many of these cities, officials have drawn up laws requiring that buildings be designed and constructed to endure earthquakes. But some cities, particularly those in developing countries, lack the resources to do this. There, people are rapidly putting up substandard buildings that can't withstand the force of the shaking earth. For example, the Haiti earthquake took place near the nation's crowded capital. There was a great deal of destruction because there were "too many people crammed into a city that wasn't meant to have that many people and have an earthquake," said University of Miami geologist Tim Dixon.

Another reason quakes seem worse is that we're paying more attention. Everyone noticed when the Haiti earthquake was quickly followed by the Chile earthquake. Many people watched the news and the Internet for updates on these disasters, unable to believe that they were seeing two major earthquakes in such a short period of time. But eventually, the earth will have a period when earthquakes are minor or in unpopulated areas. Then people won't notice quite so much anymore.

"People are paying attention to the violent planet we've always lived in," said Dennis Mileti, a seismic researcher. "Come back [at a time when] there have been no [noticeable] earthquakes, [and] most people will have forgotten [about them] again."

According to the article, what is one reason why it seems as if the world is experiencing more earthquakes than usual?

Answers

Answer: because there has not been one in years

Explanation: there was not on now 2023, 2022, 2021, 2020, and 2019

Answer:

The number of earthquakes has not increased because earthquakes didn't happen in the USA for a while.

Explanation:

How are cold, dry air masses formed?

over land in polar regions

over water in tropical zones

over water in polar regions

over land in tropical areas

Answers

Explanation:

over land in polar regions

Over water in polar regions

humans can hear the squeaks and clicks that bats emit while using echolocation to see their surroundings

TRUE OR FALSE?

Answers

Answer:

False?

Explanation:

Hope this helps you!

If this is wrong next time I will be better!

Very much false we don’t have that great of ears lol

How are both electromagnetic and mechanical waves used when people communicate with each other?

Answers

Unlike mechanical waves, which require matter, electromagnetic waves can travel through empty space, as well as through liquids, solids, and gases. There are many similarities between light waves and mechanical waves. They can both be measured by their amplitude, wavelength, and frequency.

Electromagnetic and mechanical waves used when people communicate with each other, this done by an antenna(sender & receiver)

What is antenna ?

An antenna is a metallic structure that produce or/and receives electromagnetic waves it is available in different shapes. There are different types of antennas which are  Short Dipole antenna, Dipole antenna, Loop antenna, Monopole antenna.

when input of the Dipole antenna is connected to the electric signals having certain frequency. Due to change in the electric signal, there is fluctuation in polarity of dipoles in dipole antenna and that change in the dipole produces electromagnetic wave.

when electromagnetic wave is received by the dipole antenna, dipoles in the antenna get affected by electromagnetic waves, dipoles fluctuate at frequency of received electric signals and produces electric signals of same frequency as electromagnetic wave.

Sound wave is mechanical wave. sound wave is converted in electric signals by using microphone, it gets amplified and given to to input of the antenna(Transmitter).  This antenna converts Electric signal into electromagnetic wave. This converted electromagnetic wave is received by another antenna(receiver). this antenna converts electromagnetic wave into electric signals, this signals are amplified and given it to the speaker.

Hence this is how people use electromagnetic and mechanical waves for communication.

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What is the difference between liquid water and water vapor?


They have different arrangements of atoms in their molecules.

They are different types of chemical compounds.

They differ in their number and types of atoms.

They are different states of the same pure substance.

Answers

Answer:

D

Explanation:

they are different states of the same pure substance lmk if I'm right I'm 99% sure I am

D is the answer honey

Is every section of the chromosome active? Why or why not?

Answers

Yes, every section of the chromosome is active because 1 chromosome can hold many genes that works together to make proteins
yes every section is active

when forklift moves a crate, it performs _______.

Answers

Motion of the forklift

Answer:

GPE

Explanation:

A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J

Answers

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

What is potential energy ?

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

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If earth had two moons, how might this affect the way we see eclipses here on earth?

Answers

If Earth had two moons, it would be a catastrophe. An extra moon would add an extra gravitational pull, leading to larger tides and wiping out major cities like New York and Singapore. And millions of years later, the moons would collide, sending chunks crashing to the planet.

Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered through scientific investigation? Check all that apply. Does pressure have an effect on the solubility of a substance? Which physicist was the smartest? Is the information on the periodic table difficult to understand? Which brand of soap is the best for cleaning grease off of dishes? Which laboratory experiment is the most fun to perform?

Answers

Does pressure have an effect on the volume of a gas? Which brand of soap is the best for cleaning grease off dishes?
what maggie said >>>>

ASAP Answer Both Questions Pls and Ty!!!
1. Omar is sliding along the school corridor. Draw a picture of Omar sliding along the floor. Add a force arrow to show the force of friction acting on Omar.

2. Press your hands very gently and rub them. Now press much harder and rub again. Describe what you observe. What does this tell you about the force of friction?

Answers

Answer:

well all you would have to do is draw a picture of him sliding and an arrow

and as for the second one rub your hands together and tell them what you see and then explain if it was easy to do or if you had troubles because the force of friction will make your hands warm up which is why you see them rub their hands together in movies

Answer:

1. The Speed is 390

2. The Frequency is 425 Hz

3. The Wavelength is 1.3

Explanation:

1. To find the speed of a wave you have to do the formula of speed.

Speed = Wavelength x Wave Frequency.

Speed = 1.5 * 260

= 390

Explanation:

Please I need your help

Please I need your help

Answers

17. 36mph 40 takeaway 6
46 mph
4 m/s
10 m/s
vhyfbjgcvjgdcnjxtnnhdfbj

A car has a mass of 1,00* 10 kilograms, and it has an acceleration of 4.5 meters/second what is the net force on the car?
OA 0.910 newtons
OB 25*10 newtons
OC 45x10 newtons
OD 90x10 newtons
OE 96*10 newtons

Answers

Answer:

4.5 × 10³

Explanation:

F=ma

F = 100*10 × 4.5

F = 4.5 × 10³

Create a story of a “day in the life of a water drop”. Your story should be creative and include all 6 steps in the water cycle. You can share your story through, writing (1 paragraph per part of the cycle), drawing, animation, or a multimedia presentation.

Answers

Answer: Once upon a time the clouds were coming together for a family meeting. One uncle cloudy got mad at his brother and started a rumble. As he got angrier and angrier the clouds started to shake. Later down below in humans vile a storm started to form. And that was the day a rain drop was born. :)

Explanation:

Explain what happens as the heart grows bigger.

Answers

When the heart grows bigger, a condition known as cardiac hypertrophy occurs. This can happen as a result of several factors, including high blood pressure, heart disease, and obesity.

Initially, the heart may grow bigger as a compensatory mechanism to try to keep up with increased demands for blood and oxygen. For example, if a person engages in regular exercise, their heart may enlarge to accommodate the increased demand for blood and oxygen to the muscles.

However, if the heart continues to grow over time, it can become less efficient at pumping blood and may develop structural abnormalities that increase the risk of heart failure, arrhythmias, and other complications.

In some cases, cardiac hypertrophy may be reversible if the underlying cause is treated, such as by managing high blood pressure or heart disease. However, if left untreated, hypertrophy can lead to irreversible damage to the heart muscle and may require more aggressive interventions, such as medication, surgery, or other medical procedures to manage the condition.
An enlarged heart may cause the heart to beat too fast or too slow. The irregular heartbeat (arrhythmia) may lead to fainting, cardiac arrest or sudden death.

What are three behaviors of light that cause it to be through of as a wave?

Answers

Answer:

Reflection

refraction

interference

diffraction

Explanation:

The properties or behaviors of light that can be modeled as a wave are as follows:

Diffraction:

Light can bypass obstacles and diffuse out of slits, which is a property of waves.

Reflection:

light "bounces" when it comes across a smooth medium, that is, it returns to the original medium, this is also a characteristic of waves.

Refraction:

The path of light changes as it passes from one medium to another (also a property of waves).

Interference:

by superimposing two or more waves they influence each other, and the resulting light is the sum of the superimposed waves, which depending on their relative phases can cancel each other or increase the amplitude of the wave.

These are the characteristics of light that are explained with the wave model.

Now use the temperature change simulation to carry out your experiment. Record your data, as well as any necessary calculations, in the table. You can modify the table, if necessary, so it matches your experimental procedure.

Now use the temperature change simulation to carry out your experiment. Record your data, as well as

Answers

Answer: Unable to answer.

Explanation: If you link the simulation, I can answer it for you.

Also unable to answer this is an odd question if you like the chart maybe I can help you.

hey if your answering this can you just answer the number 14 I already got the rest
thanks

hey if your answering this can you just answer the number 14 I already got the restthanks

Answers

layer a is the answer
Layer A is the correct one
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