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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In order for radiation to transfer heat,
a electromagnetic waves must be transmitted
b objects must be in direct physical contact
c particles must circulate and move in a liquid or gas
d thermal energy must move from cold to hot objects
Answer:
b
Explanation:
i hope this is right bc im not sure
Ayala is making salad dressing. She mixes oil and vinegar in a blender until a smooth consistency is formed. Explain whether this is a heterogeneous or a homogeneous mixture and why.
Explanation:
ना रखो ज़रूरत सितारों की
ना खुवाइश रखो फालतू यारों की
बस एक दोस्त रखो हमारे जैसा
जो वाट लगा दे हजारों की
Pls help me I don’t understand it’s for my science class.
Plz check if correct and tell me wether each is element or compound
Answer:
there are some materials listed so next to it it shows that which material is pure substance and which material is mixture
and then the next shows which is a homologous and homogeneous compound or element
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 decrease the frequency?
Which of these statements about heating up land and water is true?
Land and water are heated to the same temperature.
Land is heated through radiant energy.
Land heats up slower than water.
Land is heated by conduction.
Answer:
c
Explanation:
The correct statement regarding the heating up of land and water is " land heat up through radiant energy. Hence, option b is correct.
What is radiation?Radiation is the transfer of energy through space. The heat and light energy is reaching to the earth surface from the sun by radiation. Beside radiation, two other modes of heat transfer are conduction and convection.
Solids heats up by conduction in which the heat is transferred easily through the closed packed chain of molecules. Convection is the heat transfer mode for fluids. Where the hotter molecules rises up and make other molecules warmer.
The land heat up more fastly than water. Since the heat is transferring through the ground by conduction process and by convection in water. The heat radiated from sun warm up both land and water.
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the difference between the three types of mechanical waves.
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! :)
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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Calculate the mass of a liquid with a density of 4.7 g/mL and a volume of 15 mL. help me plssssssssssssssssssssssssssssssssss
Answer:
70.5g
Explanation:
D=M/V
D=4.7 g/ml
V=15ml
plug into equation
4.7=m/15
multiply both sides by 15
m=70.5g
Answer:
70.5g/ml
Explanation:
density times volume
Otis watches a cooking show on making mayonnaise. The chef dissolves salt and sugar in vinegar. She mixes in an egg yolk, and then mixes in oil until the ingredients are completely blended together. The chef says that it’s great on sandwiches and that it can be stored without separating.
Which best describes the purpose of the egg yolk in the recipe?
Answer:
It acts to hold the vinegar and oil together in a colloid.
Answer:
b
Explanation:
i took the test
_________ energy is to the fission and fusion within an atom as ________ energy is to the fission of atomic compounds.
a. Chemical; Thermal
b. Nuclear; Chemical
c. Nuclear; Radiant
NEED HELP FAST
Answer:
Watch Naruto that's the answer
Explanation:
What is the affect?
A wave enters a medium where its wave speed is higher.
=:)
✿
All substances taking part in a certain interaction are shown below:
Carbonate = Calcium Oxide + Carbon Dioxide
Calcium Oxide equals: 112 G
Carbon Dioxide equals: 88 G
Which of the following is the correct estimate of the amount of calcium carbonate used in the interaction?
A. Sum of 112 g and 88 g
B. Difference between 112 g and 88 g
C. Twice the sum of 112 g and 88 g
D. Twice the difference between 112 g and 88 g
✿
any help is much appreciated <3
will reward brainliest to the correct answer (•◡•) !
Answer:The Law of Conservation of Mass simply states that the total amount of mass should not change in a chemical reaction that is isolated (no other objects can enter the reaction). The total mass of the reactants must be equal to the total mass of the products. Thus, the correct estimate of the amount of oxygen used in the interaction is the difference between 133 g and 29 g.
Explanation: I hope this helped!
When a force is applied to an object, its _____, the object _________________________________________________________.
Subject = Science
In order for convection to transfer heat, particles need to
a circulate and move within a liquid or gas
b make contact with the heat source
c transmit electromagnetic waves
Need this asap ill mark brainliest On the Internet, many authors post opinion articles on scientific topics. What are the benefits and drawbacks of these opinion articles in regard to scientific discussion?
Answer:
A benefit of the opinion of a scientific author is that you can see others points of view on a subject. A drawback is that they are using an opinion and most likely not stating unbiased facts.
Explanation:
Hope this helps
Answer:
Highlights:
*Researchers in the sciences do not see access to the scientific literature as an especially important problem.
*Authors consider factors such as journal reputation and the absence of publication fees when deciding where to submit their work. In contrast, free access is not a significant factor in their submission decisions.
Implications:
*While open access has the potential to expand the authorship and readership of the scientific literature, that potential has not yet been realized.
*Librarians who encourage scientists to publish in open access journals should be aware of the authors' priorities and perspectives. Authors in the sciences tend to focus on citation impact, reputation, and accessibility to a specialized readership—not breadth of readership, copyright, or access status.
*Journal publishers that charge publication fees may want to consider alternative sources of revenue. Authors' resistance to publication fees is a major barrier to greater participation in open access initiatives.
Explanation:
EASY How does the force of friction affect the motion of objects?
It causes the object to change direction.
It causes the object to create heat energy.
It causes the object to create kinetic energy.
It causes the object to slow down or stop.
Answer:
It causes the object to slow down or stop.
Explanation:
Friction is a unknown force pressing against another force slightly, making the moving object slow down.
What is convection?
a Transfer of heat through objects touching the source
b Transfer of heat through direct physical contact
c Transfer of heat through electromagnetic waves
d Transfer of heat through the movement of particles
Answer:
d transfer of heat through the movement of particles
The correct answer is option d: Transfer of heat through the movement of particles. Convection is a mode of heat transfer that occurs through the movement of particles.
Convection is the transfer of heat through the movement of particles in a fluid, such as a gas or liquid. Option (d) is the correct answer. Convection occurs when a temperature difference exists within the fluid, causing the hotter particles to become less dense and rise while the cooler particles sink. This movement creates a circulation pattern known as convection currents. Convection is a significant mechanism for heat transfer in various natural and man-made systems. For example, when a pot of water is heated on a stove, the bottom of the pot gets hot, causing the water near the bottom to heat up and expand. This hot water rises to the top, transferring heat to the surrounding cooler water. As a result, the water circulates in a convection current, leading to a more uniform distribution of heat. Convection is also responsible for phenomena like ocean currents, atmospheric circulation, and even the formation of thunderstorms. It plays a crucial role in distributing heat within the Earth's atmosphere and oceans, impacting weather patterns and climate.
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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.
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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1. If the frequency of a wave increases from 2 Hz to 4 Hz without the wavelength changing, how will the wave speed change?
Answer:
Given expression: 6(2b-4). To find the value of 6(2b-4) at b= 5, we need to substitute the b=5 in the expression, we get….Therefore, the value of 6(2b-4) is 36, when b=5.
Explanation:
Given expression: 6(2b-4). To find the value of 6(2b-4) at b= 5, we need to substitute the b=5 in the expression, we get….Therefore, the value of 6(2b-4) is 36, when b=5.
Why is it important that we know the difference between viruses and bacteria?
Brent wants to fly a kite during a lightning storm at night. His friend warns him that this increases his chance of being struck by lightning. Which of the following helps to explain why this is true?
A.Lightning usually strikes at night.
B.Lightning usually strikes moving objects.
C.Lightning usually strikes objects made of fabric.
D.Lightning usually strikes objects high above the ground
Answer:
D
Explanation:
Answer:
D
Explanation:
According to the early classification system plants were put in the following categories: 1.______________________ 2. ______________________ 3.______________________
When energy from the Sun reaches the air above land, the air warms and rises. Along a coastline, cooler air above the ocean flows toward the land to replace this rising air. Which of the following best describes these processes?
A. Conduction and Convection
B. Radiation and Convection
C. Conduction and Radiation
How does changing the Amplitude affect the energy of the wave?
PLEASE HELP ME ASAP!!! THIS IS DUE IN 1 HOUR!!!
MONDAY-Explain how you find the volume of an object. (be detailed)
How are strato volcanoes different from shield volcanoes?
Strato volcanoes are more explosive than shield volcanoes.
Strato volcanoes are only found by oceans and shield are not.
Shield volcanoes are always larger than strato volcanoes.
Shield volcanoes only produce ashes and strato volcanoes only produce lava.
Answer:
b
Explanation:
i got it right on USA Test prep
In order for convection to transfer heat, particles need to
a circulate and move within a liquid or gas
b take contact with the heat source
c transmit electromagnetic waves
Answer:
Explanation:
the answer is a :)
