can someone explain what these are used for our teacher never taught us about it
1st one so nonthing gets in your eyes
2nd one so nonthing gets on your shirt
3rd one is to wash your eyes when stuff gets in them
4th is when a fire breaks out and you use that to get rid of it
5th is for when someone is on fire you wave them with it
Which is a property of every mixture?
One substance dissolves in another substance.
The molecules of one substance break down in the other.
Different samples of a single mixture have different characteristics.
One substance can be separated from another through physical means.
The property of every mixture is that One substance can be separated from another through physical means.
What is a mixture?A mixture is when two or more substances mix with each other without participating in a chemical change. The combining substance does not lose its properties or individuality in a mixture.
In other words, the components of a mixture each keep their original properties.
Since mixtures are chemically combined, they can be easily separated by physical means.
Examples of a mixture are crude oil, air, seawater, and gun powder.
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help me with this please
Answer:
The thing we keep the same for every part of the experiment because We are not changing its percentage so it is getting used in a only a particular amount so its a CONSTANT, no matter what you do that thing will be always used in a particular amount.
Answer 1-8
(ANSWER THE WHOLE THING AND NOT JUST 1-2 QUESTIONS)
1. D
2. C
3. A
4. B
5. D
6. B
7. C
8. A
Whats the effect?
A wave enters a new medium perpendicular to the boundary between the two media.
Answer: A wave
Explanation:
Because it’s the one that’s cause the new medium to go between the two media.
Define exothermic reaction.
Define endothermic reaction.
Answer:
An exothermic reaction is a chemical reaction that releases heat energy to the surroundings. This means that the overall energy of the products is lower than the overall energy of the reactants, resulting in a net release of energy in the form of heat. This can be observed as an increase in temperature of the surroundings or an increase in the motion of the reactant particles, as they absorb the energy that is released. Examples of exothermic reactions include combustion, oxidation, and many biochemical reactions.
Explanation:
Which device works by changing chemical energy to radiant energy?
A
desk lamp
B
flashlight
C
light bulb
D
solar panel
Energy neither be created or nor be destroyed, it can transfer one form to another form. chemical energy is converted into radiant energy is flashlight.
what is chemical energy?
Chemical energy is the energy of chemical substances that is released when they undergo a chemical reaction and transform into other substances.
Chemical energy is converted into electrical energy. i.e. in flash light usally there is a battery in flashlight, battery is made up of chemicals. chemical are in battery under go redox reaction and it converts chemical into electrical. i.e light is nothing but radiant energy.
In other desk lamp uses electric current supply, solar panel which convert solar energy in to electric energy. Light bulb glows by using electric current.
Thus, the electric energy in radiant energy is flashlight.
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Sand at a beach becomes very warm after being exposed to sunlight for many hours due to what type of heat transfer?
A. Conduction
B. Convection
C. Raditation
Answer:
B
Explanation:
Answer:
C
Explanation:
When lie down on hot sand, the energy flows from the sand to your body by conduction. Conduction is the transfer of heat between two things that touch each other.
The amplitude of a wave is related to the energy of a wave. Did you see anything on the screen that made you think this or could prove your point? How could you demonstrate this relationship?
Answer:The higher the amplitude, the higher the energy. To summarise, waves carry energy. The amount of energy they carry is related to their frequency and their amplitude. The higher the frequency, the more energy, and the higher the amplitude, the more energy.
Explanation:
The amplitude of a wave is directly related to the energy of a wave.
What is amplitude?Amplitude is the maximum distance covered by a body from the main point in the vibrating mode.
As we know that energy of the wave is directly proportional to the square of the amplitude:
E ∝ (a)²
As the amplitude of wave increases, energy carried by the wave is also increases. Higher energy increases the amplitude of the propagating wave.
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PLEASE HELP ME ASAP!!! THIS IS DUE IN 1 HOUR!!!
MONDAY-Explain how you find the volume of an object. (be detailed)
A linear track begins at 0 meters and has a total distance of 100 meters to the finish line. Juliet starts at the 10-meter mark while practicing for a race.
After running 45 meters, how far is she from the beginning of the track?
10 meters
35 meters
45 meters
55 meters
Answer:
55 meters
Explanation:
Just did it in EDG 2020
What is the effect of this
A wave enters a new medium at an angle far from 90 degrees with the boundary between the two media.
Answer:
Waves transfer energy from one place to another without transferring matter. Wave motion (the movement of waves) can be shown by the vibrations of a spring or by water waves.
Hope this helps!! have a good day! :)
What is the effect of this??
A wave enters a new medium at an angle far from 90 degrees with the boundary between the two media.
Answer:
Explanation:
The wavelength is the distance between two adjacent wavefronts. ... If the wave crosses to the new medium at an angle (not 90 degrees), the change ... When light enters a more optically dense medium, it is refracted closer to the normal. the same as the critical angle, light will travel along the boundary of the 2 mediums.
Which substance gets broken down in a homogeneous mixture?
colloid
solution
solute
solvent
extra points and brainliest whoever answers right.
What does the principle of faunal succession state?
Fossils are deposited in approximately horizontal layers and spread out until they reach a barrier.
Absolute dating is required to determine the relative age of animals based on their fossils.
Specific groups of organisms have followed one another in a definite sequence through the Earth's history.
Rock layers with the same unique grouping of fossils are of the same geologic age.
The answer is A. Fossils are deposited in approximately horizontal layers and spread out until they reach a barrier.
Answer:
Explanation:
about 7000
Thank you for adding the answer as well, this should help me on my test.
The diagram shows a generator powered by a water turbine. Based on the diagram, what type of energy transformation takes place in the generator?
A
Mechanical energy is transformed into electrical energy.
B
Chemical energy is transformed into kinetic energy.
C
Electrical energy is transformed into potential energy.
D
Electrical energy is transformed into chemical energy.
The transformation takes place in the generator is mechanical energy is transformed into electrical energy. Hence option A is correct.
What is energy transformation?Energy transformation is defined as the conversion of energy from one form to another. The passage of energy from one place to another is known as energy transfer. When energy transforms, it goes from one type to another.
Hydroelectricity is a type of renewable energy that produces electricity by harnessing the force of moving water. Mechanical energy is transformed into electrical energy in a generator. Most generators create alternating current as their source of electricity. A generator spins when a turbine's blades rotate due to falling water, converting the mechanical energy of the spinning turbine into electrical energy.
Thus, the transformation takes place in the generator is mechanical energy is transformed into electrical energy. Hence option A is correct.
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What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom?
The type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom is hydrogen spectrum.
What is hydrogen spectrum?The hydrogen spectrum is given by the scientist Bohr and it consist of series name lyman, balmer, paschen, bracklet and p- fund as the electromagnetic radiations splits into this.
The lyman series is formed when electrons jumps from any hige energy level to n = 1 and will be same for balmer , pachen ,bracklet and p-fund are obtained when electrons jumps from any higher energy level to n = 2,3,4 and 5 respectively.
Therefore, type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom is hydrogen spectrum.
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What did you have to look at it in order to correctly measure the amount of water in the graduated cylinder?
Answer:
Water sticks to the walls of the graduated cylinder, but only on the sides and not the middle. When students look at the surface, the water level is not straight.
Explanation:
meninges
meniscus
measles
metatarsle
What do you see happen when you increase the frequency?
As frequency decreases, wavelength…...
finish this sentence
How does changing the Frequency affect the wavelength? (may use illustrations to help explain)
1. Pick an example of a wave. Describe one piece of evidence that the wave does carries energy from one place to another.
Answer:
oceans it can gives wave
Answer:
oceans it can gives wave
Explanation:
Heather rolls a marble over sand paper and then over a flat table. Which statement best describes the observations she made?
When the marble is pulled, the friction on the table is greater.
When the marble is pushed, the friction is greater on the sandpaper.
The amount of friction is about the same on both surfaces.
The force of gravity pulling the marble lessens the friction between the surfaces.
Answer:
b
Explanation:
its b
Read it!!!!!!!!!!!!!!!!!!
Answer:
I read it
Explanation:
please help
with this question
2 QUESTIONS: ANSWER THIS with a proper answer plz. PLZ DO NOT ANSWER JUST FOR MY BRAINLY POINTS!!!!
15. For elements 1-36, there are two exceptions to the filling order as predicted from the periodic table. Draw the atomic orbital diagrams for the two exceptions and indicate how many unpaired electrons are present.
16. The elements Si, Ga, As, Ge, Al, Cd, S, and Se are all used in the manufacture of various semiconductor devices. Write the expected electron configuration for these atoms.
Answer:
Si hay algo que sucedió entre ustedes raro o un comportamiento que tuviste con esa persona o que te vio hacer asi como le pudieron decir algo de ti que no le gustara a tu amigo hace que se comporte raro contigo
Explanation:
When a force is applied to an object, its _____, the object _________________________________________________________.
Subject = Science
1. compare and differentiate weathering erosion.
2.give one example of weathering and one example of erosion that we may observe in our environment every day . ( please keep on moving if your not gonna help , i really need points , so please don't just say idk) (Thanks for the person that actually does)
Explanation:
weathering is the act of break down of big rocks by sun
What would happen if the sand dunes in an area were destroyed?
Veronica observes how the force of friction causes an object to slow down. She writes the following observation: When an object moves across a smooth surface, there is less friction created than when an object moves across a rough surface. When the object stops moving, friction is created. Which statement corrects the error(s) in Veronica's observations?
It is not smooth or rough surfaces that affects friction. It is the size of the push.
When an object moves across a rough surface, there is no friction.
When an object moves across a smooth surface, the friction increases.
When an object stops moving, there is no friction.
No surface is completely smooth, friction happens. There is higher friction between rougher surfaces. So, it is the wrong statement that smooth or rough surfaces do not affect friction.
What is friction?The resistance to motion of one object moving in relation to another is known as friction. It is not regarded as a fundamental force like gravity or electromagnetic.The interplay of small bumps on the surfaces of objects as they rub together is thought to be the primary source of friction, though scientists are not entirely certain of this. Particles that stick out above the rest can be found on even the most smooth surfaces. As the objects move, these high points collide and scrape against one another, creating resistance. Friction is brought on by this unwillingness to move.Sliding friction, fluid friction, and rolling friction are the three primary categories into which friction can be categorized. The items that are moving and the force being applied to them determine the type of friction.To learn more about friction, refer to
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