Physics Middle School

Part E Examine the image at the top of the article. The round object on the right shows how an invisibility coating will work. How are scientists trying to change the path of light? Do scientists want the coating to emit or reflect light? heLp please ​

Part E Examine The Image At The Top Of The Article. The Round Object On The Right Shows How An Invisibility

Answers

Answer 1

Answer: Reflecting the light

Answer 2

Answer:

Scientists want the invisibility coating to guide light around an object. They don’t want the coating to emit or reflect light.

PLATO ANSWER

Explanation:

Scientists want the coat of invisibility to show light around objects. They don't want the coat to emit or reflect light

Differently Worded Answer

Related Questions

Which of the following statements best describes the movement of particles in a liquid?
A.
they do not move
B.
they vibrate
C.
they slide around each other
D.
they fly around freely

Answers

Answer:

C

Explanation:

Hope this helps :)

Matter is anything that is made up of atoms. The matter word is mainly used in science. Therefore Option C are correct option.

What is matter?

Matter is a substance that has some mass and can occupy some volume. . Matter can be solid, liquid or gas.

In case of solid, particles are fixed at its mean position, they do not move at all. In gas, particles move very fast. They do not remain at its mean position. They continuously keep on moving with high kinetic energy called Brownian motion. In liquid particles are moveable, they are neither very stiff nor they move very fast. There is surface tension between the particles and the layers of liquid. Therefore, the layers of liquid just slide around each other. And this property of liquid is the reason for its fluidity.

Thus option c is correct option

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Explain how scientists are able to estimate the age of the solar system.

They use radioactive dating with samples of meteorites.
They use relative dating with the layers of the moon's surface.
They use radioactive dating with samples of moon rock.
They use relative dating with the layers of the Earth's surface.

Answers

They use radioactive dating with the samples of meteorites

Scientists are able to estimate the age of the solar system by the use of radioactive dating with samples of meteorites. Hence, option A is correct.

What is Radioactive Dating?

Radioactive isotopes are used in radioactive dating to determine the age of rocks and minerals. For igneous and metamorphic rocks, which cannot be dated using the stratigraphic correlation approach for sedimentary rocks, this method is helpful.

The atomic nucleus becomes unstable and releases bits and pieces during radioactive decay, which is a natural process. As radioactive particles, they are discharged (there are many types). The atom becomes stable when the number of protons and neutrons in the nucleus is balanced as a result of this decay process.

To try and determine the age of the Solar System, we can look at the oldest meteorites or those that exhibit the most severe lead ratios; if we do so, we find that the age is approximately 4.568 billion years. Rocks from the Moon, which have not experienced the same geological processes as rocks from Earth, are available for examination.

Hence, it concludes that option A is correct.

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Moving the ball with short pushes by the inside or outside of either foot is defined as:

A.Kicking

B.Dribbling

C.Heading

D.Trapping

Answers

Answer:

dribbling

Explanation:

Answer:

b

Explanation:

What percent does muscle make up of our body mass?

Question 2 options:

50%


25%


40%

Answers

Makes up about 25% of our body
50 and 25 I think I am positive

Which air mass is responsible for bringing warm, moist air to an area?

Question 28 options:

Air Mass B


Air Mass D


Air Mass C

Answers

Answer:

Pretty sure it is air mass C

Explanation:

It looks like yhe air has warm air where as the other 2 options have cold air.

Air mass C for the area

What is something that is artificially pressurized to to outside air pressure, no links.

Answers

Airplanes are artificially pressurized.

The anwser is a plane because it protects pilot, crew and passengers from hypoxia.

As a front passes through your area, thunderstorms occur, winds shift from southeast to northwest, and the temperature changes from 85 to 65 degrees Fahrenheit. What kind of front was this?

cold


warm


stationary

Answers

Answer:

warm

Explanation:

goo gle

There is a warm front.

The following information should be considered:

Since front passes via the area at the time when thunderstorms arise and the wind is shifted from southeast to northwest. The temperature change from 85 to 65 degrees.So it is the warm front.It is the boundary that lies between a warm air mass and a retreating mass of cold air.

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Which process moves molecules and has these traits?

–moves from high concentration to low concentration
–moves from uneven distribution to even distribution
–can occur when there is no membrane

active transport in a cell
diffusion
osmosis
passive transport in a cell

Answers

Diffusion is the right answer, because technically the only acceptable answers here are diffusion and osmosis. But osmosis occurs in a semi-membrane, leaving no choice but diffusion. (My bad if my answer is incorrect)

i aavahva

9) Standardized Assessment Practice - Choose the best answer.

A chemist is identifying the elements found in a newly discovered sea sponge. Which can be used to identify a particular element?
number of electrons
number of protons
number of neutrons
size of the atom



10) Standardized Assessment Practice - Choose the best answer.

How many protons, neutrons, and electrons are present in an atom of radium with an atomic number of 88 and an atomic mass of 226?
88 protons, 138 neutrons, 88 electrons
75 protons, 76 neutrons, 75 electrons
88 protons, 88 neutrons, 138 electrons
138 protons, 88 neutrons, 88 electrons

Answers

The answer should be 88 protons, 138 neutrons, 88 electrons bc the atomic number equals protons and protons equal electrons and to get the atomic mass you add protons and neutrons and 88+138=226

(9) The number of protons can be used to identify a particular element. The correct option is (2). (10)  88 protons, 138 neutrons, and 88 electrons are present in an atom of radium with an atomic number of 88 and an atomic mass of 226. The correct option is (1).

(9)

The number of protons in an atom, known as its atomic number, is a unique identification for a certain element. Each element has a unique number of protons in its nucleus, which determines its chemical properties and position on the periodic table. This attribute is critical for identifying and classifying items.

Hence, the number of protons can be used to identify a particular element. The correct option is (2).

(10)

Radium has an atomic number of 88, which implies it possesses 88 protons. The number of protons in an element is defined by its atomic number.

Radium has an atomic mass of 226 which signifies the total number of protons and neutrons in the nucleus.

Since radium has 88 protons, the difference between the atomic mass and the atomic number yields the number of neutrons: 226 − 88 = 138.

Because an atom is electrically neutral, it has the same number of protons and electrons. As a result, radium possesses 88 electrons.

Hence, 88 protons, 138 neutrons, and 88 electrons are present in an atom of radium with an atomic number of 88 and an atomic mass of 226. The correct option is (1).

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The magnetic field produced by a bar magnet can be made visible using iron filings, which align to the magnetic field, as shown in the image above.



How does the magnetic field in the image compare to Earth's magnetic field?



a.The bar magnet has two poles at W and Y, and the magnetic field produced by Earth also has two poles and looks similar to the bar magnet.

b.The bar magnet has two poles at W and Y, but the magnetic field produced by Earth has three poles and looks different from the bar magnet.

c.The bar magnet has three poles at W, X, and Y, and the magnetic field produced by Earth also has three poles and looks similar to the bar magnet.

d.The bar magnet has three poles at W, X, and Y, but the magnetic field produced by Earth has two poles and looks different from the bar magnet.

Answers

Answer:

c

Explanation:

Answer:

C

Explanation:

HEEEEELP PPPPPLLLLLZZZZZ

Answers

i think z because water is a bunch of free moving particles which are weightless to gravity.

What is the formula to calculate the GPE of an object?

Answers

Answer:

mass x gravity x height

Explanation:

Gravitational potential energy is measured in jules

The formula is U=mgh. With U being gravitational energy, M is mass, g is gravitational field, h is height.

True or False

A penalty kick is awarded if any defensive player (other than the goalie) touches the ball inside the penalty area

Answers

Answer:

T?

Explanation:

A penalty kick is a direct free kick awarded to the attacking team when the defensive team commits a foul in the penalty area. It is taken from the penalty spot and all players except the goalkeeper and the player taking the kick must stand outside the penalty area, at least 10 yards from the penalty spot.

True I think I could be wrong tho

Please help me give a summary for trees lessons as I (cody) have a quiz Tommorow

Sientific method

Conduction,convection, and radiation

Energy transformations

Law of conversion of energy

Answers

Answer:

Conduction is heat transfer through stationary matter by physical contact. (The matter is stationary on a macroscopic scale—we know that thermal motion of the atoms and molecules occurs at any temperature above absolute zero.) Heat transferred from the burner of a stove through the bottom of a pan to food in the pan is transferred by conduction.

Convection is the heat transfer by the macroscopic movement of a fluid. This type of transfer takes place in a forced-air furnace and in weather systems, for example.

Heat transfer by radiation occurs when microwaves, infrared radiation, visible light, or another form of electromagnetic radiation is emitted or absorbed. An obvious example is the warming of Earth by the Sun. A less obvious example is thermal radiation from the human body.     I hope this helps you

Explanation:

PLEASE ANSWER You are in a vehicle waiting at a railroad crossing and notice a train going by at a constant speed of 5 kph. You happen to notice that there’s no engineer driving the train and it seems to be on auto pilot. Down the track in the direction the train is traveling, you see a Humane Society van full of cute puppies and kittens stalled out on the tracks. Are the van’s passengers in trouble or not? Use Newton’s 2nd Law to explain.

Answers

Newton’s second law is which simply states that the rate of change of momentum of a body over time is directly proportional to the force applied. An example is baseball. If you hit the ball with small force it won’t go far or fly in the air fast rather slowly glide through the air and probably touch the ground in 5 seconds. Based on that this question isn’t able to use the 2nd law. A train with no driver to stop it that weighs tons more than a van with puppies in it will destroy and plow through the van no matter what. It doesn’t matter the speed nor how far away it is. They are in danger due to the fact there is no driver to stop the train and there is a big mass difference between the two transportation devices.

The position data for line 2 was recorded in 1-second intervals. Draw a graph with distance on the y-axis and elapsed time on the x-axis. Reference all distance and time measurements to dot 1. To plot a point, use the circle tool. To draw a line between points, use the line tool. To move a point or line, use the select tool.

Answers

Answer:

Actual Answer from PLATO. :)

Explanation:

Answer:

I need a different answer for mine lol

Explanation:

Do allergen-free pillows cause fewer germs to grow?
Why do you think this experiment fits in the category of life science?

Answers

No it doesn’t cause fewer germs to grow. it fits because it can be tested and experimented on, you can revive different results depending on your environment and what you did prior to laying on your pillow. There are many factors that can play a role.
No it doesn’t cause fewer germs to grow

If everything with mass is attracted to every other thing with mass, why doesn’t all the matter in the universe pull together in a giant ball of stuff?

Answers

Answer:

i need more info

Explanation:

It simply doesn’t feel the gravitational of the other matter until it was too late to form a clump.
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