Match the following items.
1.
uses a lens to gather and focus light
refracting telescope
2. separates starlight into wavelengths
radio telescopes
3. pick up faint-lighted stars
spectrograph
4. see binary stars
giant refractors
5. see behind nebulae dust
giant reflectors
Answers
Answer:
1-uses a lens to gather and focus light- giant reflectors
2-separates starlight into wavelengths- spectrograph
3-pick up faint-lighted stars- radio telescope
4-see binary stars- refracting telescope
5-see behind nebulae dust- giant refractors
Explanation:
is it correct?
Related Questions
What kind of chemical bond is formed between nonmetals? Explain your answer.
Answers
Answer:
The ionic bond is formed due to an electrostatic force of attraction between two oppositely charged ions. This bond is usually formed between a metal and a nonmetal. Prior to the electrostatic attraction, there is a total transfer of valence electrons from one atom to the other atom.
Explanation: hope that helps
In general, nonmetals form covalent bonds, metals and nonmetals form ionic bonds, and metals form metallic bonds.
What are non-metals?Non-metals are natural materials that do not generate heat or electricity and are structurally brittle, making them difficult to roll, mold, extrude, or press.
Non-metallic elements in the periodic table include hydrogen, carbon, nitrogen, oxygen, phosphorus, arsenic, and selenium.
Ionic compounds are formed when metals and nonmetals combine, whereas covalent compounds are formed when nonmetals combine with other nonmetals.
Metal atoms have only a few electrons in their outer shell, whereas non-metal atoms have many electrons.
This means that metals are more likely to react with nonmetals. Electrons transfer from the metal to the nonmetal when it reacts with it.
Thus, there will be covalent bonding between nonmetals.
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What are all the breeds of dogs and how many breeds of dogs are there?
Answers
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed
There are currently more than 340 different breeds of dogs recognised throughout the world.
During digestion, what happens in the stomach?
A. All food molecules are broken down into smaller molecules by chemical reactions.
B. Some types of food molecules are broken down into smaller molecules by chemical reactions.
C. Water in the food passes into the blood and travels to other organs where it is used.
D. Food passes into the blood and travels to other organs where it is used in various reactions.
Answers
Answer:
A
Explanation:
Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.
Answer:
A
Explanation:
HELP ASAP ITS 8th GRADE SCIENCE BUT IT DOESN'T HAVE THAT OPTION
The graph shows the kinetic energy (KE) and potential energy (PE) of a bouncing ball over a period of 9 seconds. Use the graph to answer question 2-3.
2. When does the ball have the most kinetic energy?
3. What statement best describes what happens to the total mechanical energy of the ball as it bounces?
please and thank you <333
Answers
Answer: By best guest is 2-A & 3-A
Explanation:
I would have an expert answer this just in cast i'm wrong
In self heating cans, the chemicals in two compartments react with each other and forms……..
Answers
calcium hydroxide : chemicals are Quicklime and water
Can some one help? And also explain it? The question is how titan in Saturn evaporated I’m just confused by this question I just don’t know what to write as a response…. Help?!?
Answers
The process of how Titan's atmosphere evaporated is an interesting one. Titan is the largest moon of Saturn and has a thick atmosphere primarily composed of nitrogen, similar to Earth's atmosphere. The evaporation of Titan's atmosphere is related to its surface temperature, atmospheric pressure, and the composition of its atmosphere.
Here's a simplified explanation of how Titan's atmosphere can evaporate:
1. Surface Temperature: Titan is a very cold moon with surface temperatures averaging around -290 degrees Fahrenheit (-179 degrees Celsius). At such low temperatures, some of the gases in the atmosphere, like methane and ethane, exist in liquid form on the surface.
2. Atmospheric Pressure: Despite being cold, Titan's atmosphere is relatively dense, with a surface pressure about 50% higher than Earth's. This atmospheric pressure helps keep the gases in the atmosphere from escaping into space easily.
3. Evaporation: Even at such low temperatures, some of the liquid hydrocarbons on Titan's surface can evaporate and become gases in the atmosphere. This process is similar to how water evaporates from Earth's oceans and lakes, despite not reaching boiling temperatures.
4. Condensation: Conversely, when the gases in Titan's atmosphere lose energy, they can condense and return to the surface as liquid. This is similar to how water vapor in Earth's atmosphere condenses to form clouds and eventually falls as rain.
Overall, the balance between evaporation and condensation in Titan's atmosphere is influenced by its temperature, atmospheric pressure, and the composition of its atmosphere. The low temperatures and high atmospheric pressure allow for the existence of liquid hydrocarbons on the surface and their occasional evaporation into the atmosphere.
I hope this explanation helps you understand how Titan's atmosphere can evaporate despite being a cold moon. If you have any further questions or need more clarification, feel free to ask!
What is the name of the chemical that builds up in muscles during strenuous exercise when the body conducts anaerobic respiration?
Answers
Organisms use glucose to make ethanol or lactic acid, CO2, and ATP.
When oxygen is scarce, people and animals employ anaerobic respiration for short periods. Imagine a runner on a track. It takes a few seconds for the extra oxygen they require to get into their muscle cells, therefore aerobic respiration takes a long to start.
Anaerobic respiration is needed to produce ATP during this brief period. In contrast to aerobic respiration, which produces 36 molecules of ATP per molecule of glucose, this mode of respiration produces only 2. Anaerobic respiration can potentially be harmful due to its by-products. Anaerobic respiration produces lactic acid in most people and animals.
It is poisonous to cells and causes a burning sensation in muscles when they weary. Thankfully, anaerobic respiration lasts only 20 seconds before aerobic respiration takes over.
Lactic acid buildup causes oxygen debt. For example, a sprinter is said to need a minute to catch his breath. More oxygen is required to break down lactic acid so it is no longer toxic to the cell.
please help bohr diagram practice
Answers
Answer:
nothing is here
Explanation:
Which of the following is NOT a part of a nerve cell?
a.
dendrite
b.
neuron
c.
axon
d.
cell body
Answers
Answer: Your answer is B. Neuron. When you look at the nerve cell you can see the cell body, the dendrites ontop of it, axon is the tail like thing at the bottom and the neuron isn't even part of the nerve cell
Explanation:
Consider the following reversible reaction.
C(s) + O2(g) C02(9)
What is the equilibrium constant expression for the given system?
[CO]
o kor" (CO2)
[CO]
o KooTO]
[C]O2]
o Keg"
[CO2]
[02]
o Ker-1002]
Answers
Answer: The equilibrium constant expression for the given system is \(K_{eq}=\frac{[CO_2]}{[O_2]}\)
Explanation:
Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric coefficients. It is represented by \(K_{eq}\)
For a general chemical reaction:
\(aA+bB\rightarrow cC+dD\)
The \(K_{eq}\) is written as:
\(K_{eq}=\frac{[C]^c[D]^d}{[A]^a[B]^b}\)
The concentration of pure solid and pure liquid are taken as 1 in equilibrium expression.
The \(K_{eq}\) for the given reaction is written as:
\(C(s)+O_2(g)\rightarrow CO_2(g)\)
\(K_{eq}=\frac{[CO_2]}{[O_2]}\)
What is the process of dissociation?
A. A solvent separates the individual molecules in a compound and carries them away, but leaves them chemically unchanged.
B. A solvent separates the atoms of a covalent molecule and carries them away, breaking the substance down into individual ions.
C. A solvent disrupts the lattice-like structure of an ionic compound, causing the ions to combine into a new compound.
D. A solvent disrupts the lattice-like structure of an ionic compound, breaking the compound into individual ions.
Answers
Answer:
Option D. A solvent disrupts the lattice-like structure of an ionic compound, breaking the compound into individual ions.
Explanation:
Dissociation of compound simply involves the splitting of ionic compounds into the individual ions that make up the compound. This can be seen when an acid dissolves in water as illustrated below:
In this case we shall use H2SO4.
H2SO4(aq) <==> 2H^+ + SO4^2-
From the above illustration, we can see that the solvent (water) breaks the acid into the individual ions that makes up the acid.
Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
\(\)
The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
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Fill each box with the chemical formula of the compound.
Answers
NaF, NaBr, Na2O, Na2S, Na3N, Na3P, NaI
KF, KBr, K2O, K2S, K3N, K3P, KI
BeF2, BeBr2, BeO, BeS, Be3N2, Be3P3, BeI2
MgF2, MgBr2, MgO, MgS, Mg3N2, Mg3P2, MgI2
CaF2, CaBr2, CaO, CaS, Ca3N2, Ca3P2, CaI2
Hope this helps! Make sure that the numbers are written small at the bottom of the letter cause it wasnt possible to do that here.
3. The cities listed below, from Chicago to Pittsburgh, lie in a roughly straight west to east line. Data on temperature, barometric pressure, and sky conditions for each city are shown in the table below. Use the data to explain what types of air masses are present and/or moving among these cities and how this accounts for the weather. What will Pittsburgh’s weather be like within the next 24 to 48 hours?
City Temp (oF) Pressure (in.) Conditions
Chicago, IL 73 29.94 rising Clear
Indianapolis, IN 75 29.93 falling Partly cloudy
Columbus, OH 78 28.20 falling Light rain
Pittsburgh, PA 74 29.90 steady Mostly sunny
Answer:
Answers
For the next 24-48 hours, Pittsburgh will see light rain. The storm is moving west-to-east toward Pittsburgh, as indicated by a drop in pressure over western cities. Precipitation is usually associated with low pressure systems.
What is weather forecasting?Weather forecasting is the application of science and technology to predict atmospheric conditions at a particular place and time.People have been trying to predict the weather informally for thousands of years, but have been doing so formally since the 19th century.Weather forecasting is the application of science and technology to predict atmospheric conditions for a particular place and time.Humans have tried to predict the weather informally for thousands of years, but only formally since the 19th century due to incomplete understanding of the ocean, measurement errors in initial conditions, atmosphere and related processes.Weather warnings are important forecasts that protect lives and property.Forecasts based on temperature and precipitation are important for agriculture and therefore for commodity market traders. Temperature forecasts are used by utility companies to forecast demand for the next few days.Many people use the daily weather forecast to decide what to wear on any given day.To learn more about weather forecasting, refer to:
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PLEASE ANSWER QUICKLY!!!!! Which of the following is NOT a function of your integumentary system?
A) Protecting against infection
B) Synthesizing vitamin D
C) Maintaining Fluid Balance
D) Stabilizing blood pressure
Answers
Answer: Must be a trick question.
Explanation: All of these are a function of the integumentary system.
Hope this helps <3
B in total
pot
5. Lindsey built a clock with 16 divisions, which we'll call Lindsey Hours.
Just like our clocks, the hour-hand on Lindsey's clock goes around twice
per day. How many Lindsey Hours are in one day?
16
-12
Answers
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?
Answers
Choose the phrase that best defines ecosystem service. (1 point)
Answers
Human:
✧･ﾟ: *✧･ﾟ:* Answer: *:･ﾟ✧*:･ﾟ✧
✅ the first one
I WOULD APPRECIATE BRAINLIEST!
~ ₕₒₚₑ ₜₕᵢₛ ₕₑₗₚₛ! :₎ ♡
~
Answer:
the third one but its probably wrong
Explanation:
because
chemicals applied to the violin's surface can cause the wood in the finished violin to become stiff. Would this affect the speed of the waves traveling through the wood?
Answers
Answer:
Short answer yes
Explanation:
Long answer:
yes because if its stiffer its much more resistant to any touch causing the sound to be more sharp
why is compound not a mixture?
Answers
Venus is making soup. She is putting her ingredients into a pot of water. She places small amounts of the ingredients into water and heats up the pot on the stove. She slowly stirs the pot on the stove. What should Venus do to speed up the rate the ingredients are dissolving?
A She should place larger amounts of ingredients into the water.
B She should take the pot off of the heat to lower the temperature.
C She should place the pot in the fridge to cool it down.
D She should stir the pot of ingredients faster.
Answers
Answer:
D
Explanation:
increase in rate of stiring leads to an increase in rate of which the ingredients will dissolve
Answer:
Your answer is D
Explanation:
This is the only viable solution due to the fact that first of all the other options would slow down the dissolving of the ingredients, second of all when you are trying to dissolve ingredients faster you should stir faster because when you stir faster you distribute the particle faster thus speeding up the process. Therefore that is my proof that your answer is D.
Hope this Helps!
Choose all the answers that apply.
Argon (Ar) is in group 18. Argon _____.
forms a salt when combined with a metal
has 18 electron shells
has properties similar to other elements in group 18
does not react readily with other elements
is part of the noble gas group
NEEDS TO BE ANSWERED ASAP
Answers
Argon (Ar) is in group 18. Argon is part of the noble gas group. Therefore, option D is correct.
What do you mean by noble gas ?The term noble gas is defined as any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. They are also called as inert gas element.
Noble gases, which are most commonly found as monatomic gases, have completely filled outer electron shells and thus have no desire to react with other elements, resulting in very few compounds.
Helium, neon, argon, krypton, xenon, and sometimes radon are examples of rare gases with high stability and extremely low reaction rates. Also known as inert gas.
Argon is called as noble gas element because they have completely filled their outermost shell.
Thus, option C is correct.
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Do you think a moving skateboard has energy? Why or why not?
PLEASEEEEEE HURRY
Answers
Answer:
"Yes," a moving skateboard has energy.
When the skater seems to be in motion or throughout a movement, the potential energy converts itself into the kinetic form of energy, and then it becomes potential energy again.
Furthermore, somewhere after every movement, the same skateboarder was around a similar height, — in other words thus every time it is equally powerful.
The response is thus the right one.
Explanation:
Answer for points and brainliest!! :)
What is one way these stems help these cactus plants survive?
A. They take energy from sunlight.
B. They take minerals from soil.
C. They hold the plant in the ground.
D. They make seeds for reproduction.
Answers
Answer:
B.
Explanation:
A cactus stores water in its stem, which allows it to survive and thrive in desert-like environments. Its stem is made up of thick, spongy tissue that helps to absorb and retain large amounts of water. This stored water is then used to keep the cactus hydrated during times of drought and heat.
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
What is an ellipse please help)
Answers
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
glacial striations in the bedrock of south africa indicate that glaciers once moved across the african continent the presence of glaciers on the surface of africa is evidence that
Answers
The presence of glaciers on the surface of Africa is evidence that it moved outwards from a central point in southern Africa.
What is a Glacier?This is defined as the persistent body of dense ice that is constantly moving under its own weight.
Glaciers being found on African surface depicts that the movement occurred outward from Southern Africa during the period.
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Atoms are made up of atomic particles. Which of the following is not an atomic A.particle
B.electrons
C.neutrons
D.molecules
E.protons
Answers
Answer:
D
Explanation:
san atom is made of electrons, protons and neutrons
Answer:molecules
Explanation:
Choose the answers from the drop-down menus. What type of isoline is indicated on this weather map? 1016 1028 1016 1046 1820 In what pressure region is a high-pressure area located? 1016 1020 1012 1024 1016 1012 1012 1016 1016 1020 ( 1024 1020 1012 What type of weather would likely be found in this area? 1012 1008 1016 Lioba 1016 1008 1020 1012 1016 1012 020 1008 w 1012 402e 1016 1012 1012 -1016 10.16 1046.
Answers
Answer:
About 178,000 results (0.66 seconds)
Choose the answers from the drop-down menus. What type of ...https://brainly.com › Biology › High School
2 answers
Nov 20, 2019 — What type of isoline is indicated on this weather map? In what pressure region is a high-pressure area located? What type of weather would ...
Explanation:
Answer: isobar
1024 mb
Sunny weather
Explanation: