True or False: Solar energy is changed into electrical energy in a solar power tower system using mirrors called heliostats that concentrate sunlight onto a central tower.
True
False
Answers
Answer: true
Explanation:
Answer:
true
Explanation:
Concentrating solar power (CSP) plants use mirrors to concentrate the sun's energy to drive traditional steam turbines or engines that create electricity. The thermal energy concentrated in a CSP plant can be stored and used to produce electricity when it is needed, day or night.
Related Questions
Please help me
If all wavelengths of light on the electromagnetic spectrum are released by objects in space (stars, quasars, etc.), why aren’t we constantly bombarded by harmful waves like x-rays and gamma rays? Use evidence from the lesson and scientific reasoning to support your answer.
Answers
Answer:
The Ozone layer
Explanation:
It blocks out all the bad rays ! :)
PLEASE ANSWER THIS I AM DOING SCIENCE AND IT SUCKS
WHICH ONE IS A SCIENTIFIC PROBLEM
The fingerlings grown in 5% saline solution will grow
faster than the fingerlings grown in 10% saline solution.
What is the growth rate of the fingerlings in 5% saline
and 10% saline solutions?
Answers
the other is a hypothesis
I donty know how to do this what are they
Answers
Answer:spectrum
Explanation:
Let's start with the basics. The electromagnetic spectrum is a range of different types of electromagnetic waves. These waves have different wavelengths and frequencies, and they include things like radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. But here's the thing: not all of these waves are visible to the human eye.
So, which ones are visible? You guessed it – it's the visible light that we're interested in. Visible light is the part of the electromagnetic spectrum that we can see. It's made up of different colors, including red, orange, yellow, green, blue, indigo, and violet. When all of these colors are combined, they make white light.
But what about the other types of electromagnetic waves? Well, they are not visible to the human eye. For example, radio waves are used to transmit radio and television signals, but we can't see them. Microwaves are used for cooking food, but we can't see them either. Infrared radiation is what we feel as heat, but it's also not visible to us. Ultraviolet radiation can cause sunburn, but we can't see it either. X-rays and gamma rays are used in medical imaging and radiation therapy, but we can't see them with our eyes.
So, in summary, visible light is the only part of the electromagnetic spectrum that we can see with our eyes. All of the other types of electromagnetic waves, including radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays, are not visible to the human eye. Isn't that amazing?
Radio
Micro
Infrared
Visible light
Ultra violet
X-ray
Gamma
(I remember them using the mnemonic “Read My Instructions Visible Under X-ray Glasses” (first letter of each word represents an EM wave))
Only Visible light waves are visible to the human eye
write a short story using the characteristics of the subatomic particles and their locations in the atom. For example, you need a positive character, a neutral character, and a negative character. You need two different locations. One to be the center location of the story and the other to be outside the center. At a minimum you should have at least 1 paragraph with about 5 sentences. Make sure that you use complete sentences.
Make sure it is school appropriate!!
Answers
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.
plzs help
What type of organic compound is used for building cell parts?
Answers
Answer:
Carbohydrates
Help this is science class and it’s not necessary my best class and I’m kinda slow at learning
Answers
Answer:
d
Explanation:
you can elimate a as your body has a fever to fight the infection and antibiotics are just there to assist. b is elimanated as slowing the life cycle would be modifying the germs genetic's which is not how antibiotcs work they just your bodys imune system. c is elminated as stated in the question the virus came back which not be possible if the bacteria stoped reproducing. that leaves d which means that yould likley be perscribed a diffrent anti biotic
Which option is a measure of the average kinetic energy of the particles in a substance?
plz help
Answers
Answer:
temperature is use to measure
The temperature can measure the average kinetic energy of the particles in a substance. Therefore, option (B) is correct.
What is average kinetic energy?The average kinetic energy of a molecule of a gas is, K.E.= (3/2) kT where 'T' is the absolute temperature of the gas and 'k' is the Boltzmann constant and
All molecules of a gas are identical in mass and size and this differs from other gases. The actual volume of the molecules of a gas is negligible compared to the total volume occupied by gas.
The force of attraction between molecules of a gas is negligible and they are moving in different directions with different velocities. Since the molecules are moving at different velocities so they possess different kinetic energies.
The average kinetic energy of molecules is directly proportional to the absolute temperature of the gas. When the temperature of the gas is increased, the molecules start moving faster.
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88
Complete the semence with the word element of compour
O is a(n)
and H₂02₂ is a(n)
Answers
Answer: 82 + 62 = h*2 so that would mean 35.
Explanation:
A student uses red litmus paper to test the pH value of different solutions. Which would result in a color change of the litmus paper?
soap
vinegar
lemon juice
antifreeze
Answers
The litmus paper shows red colour for acidic substances and blue colour for basic substances. Thus a red litmus paper will turn blue if it is dipped in an alkaline solution. Soap is alkaline and given blue color to litmus.
What is pH?pH of a substance is its measure of concentration of H+ ions in it. It is mathematically negative logarithm of H+ ion concentration. Thus, pH measures how much acidic or basic the solution is.
A pH of of 7 is neutral having no acidity or basicity. A pH less than 7 is acidic and pH greater than 7 is basic in nature. Vinegar is acetic acid and it shows less pH . Lemon juice also acidic since it contain citric acid whereas, soap is basic.
A litmus paper is used to identify whether a substance is acidic or basic. It shows red color for acidic solutions and blue for basic solutions. If the red litmus paper is dipped in acidic one, it shows no colour change if it is dipped in basic solution then it turns to blue.
Soap is highly alkaline and it changes red litmus paper to blue.
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Fill in the blanks:
An ___________ measures wind speed and a _________ shows wind direction.
A.weather balloon; electroscope
B.anemometer; wind vane
C.flask; beaker
D.oscilloscope; seismograph
It's science btw
Answers
Answer:
A.weather balloon; electroscope
Katrina is investigating the properties of volume for the different states of matter. First, she places a cube in a bowl of water and observes what happens. Next, she takes the cube out of the water and pours the water into a glass. Which statement describes the observations Katrina made of the cube and the water?
A: When the cube was placed in the water, the shape of the cube stays the same. When the liquid was poured from the bowl into the glass, the shape changed.
B: When the cube was placed in the water, the volume of the cube changed. When the liquid was poured from the bowl, the shape changed.
C: The volume of the cube and the water changed when the cube was placed into the water. The volume of the liquid changed when it was poured out of the bowl.
D: The shape and volume of the cube and the liquid changed when the cube was placed in the bowl. The liquid stayed the same when it was poured from the bowl.
Answers
The answer would be
B: When the cube was placed in the water, the volume of the cube changed. When the liquid was poured from the bowl, the shape changed.
Hope this helps
?What statement best describes the arrangement of the atoms in an ethylene molecule?
Answers
PLS HELP ME THIS IS A 13 POINT QUESTION
The source of energy across the spectrum where electromagnetic radiation bombards the atmosphere comes from_______________.
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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
The Koppen Classification System splits the world into 5 climate zones.
What was used to determine these 5 different zones?
There are 3 correct answers.
Vegetation
Temperature
Animal life
Precipitation
Water Quality
Answers
Answer:
animal life
temperature
vegetation
Explanation:
I believe this is right
Instead of developing embryo inside the egg, the embryo grows and develops inside the mother's womb until the baby is born. This belongs to what type of group?
Answers
Answer:
mammal
Explanation:
mammals are the types of animals who dont have eggs
Which accurately describes reproduction in gymnosperms? Select four options.
Some require heat for seed dispersal.
Female cones produce pollen.
Most gymnosperms produce male and female cones.
Fertilized ovules grow into seeds.
Male and female cones may grow on the same plant.
Answers
The four options that accurately describe reproduction in gymnosperms are:Fertilized ovules grow into seeds.Male and female cones may grow on the same plant.Most gymnosperms produce male and female cones.Some require heat for seed dispersal.Female cones do not produce pollen in gymnosperms. Instead, male cones produce pollen which is then carried by the wind or insects to the female cones for fertilization.
help pleaseeeeeeeeeeeeeeeeeeeeeee
Answers
Answer: I would say the camal, lizard, tiger, and armadillo do not live there.
Explanation: I looked at it on the internet and it says those are the ones that do not live there but I'm not for sure. I hope this helps good luck and sorry if I'm wrong.
All of the following are possible sources of error in a scientific investigation except for
Answers
Answer: Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Make sure you have your problem, hypothesis, evidence, analyze the data, ask yourself if the evidence supports ur hypothesis, draw conclusions, and communicate your results!
Explanation:
Which of the following best describes temperature?
A.Number of molecules incorrect answer
B.Motion of molecules incorrect answer
C.Size of molecules incorrect answer
D.Type of molecules incorrect answer
Answers
Answer:
b
Explanation:
because motions make things hotter
Explain what is happening with the heat transfer in the diagram below.
Answers
Answer:they attain thermal equilibrium
Explanation:thermal equilibrium is state which there no change in level temperature.
hey i need some help. The flow of matter through the carbon and nitrogen cycle can be disrupted! Pick one of these and describe how this disruption could impact cycling.
Answers
Answer:
What are the answer choices?
Explanation:
carbon.
sry if im wrong.
What is one example of a scientific model? (this is science I don't know why can't find it on "pick a subject" so yeah)
Answers
Answer:
Explanation:
I’ll try helping
Almost all characteristics of a star are determined by its
position in its galaxy
closeness to other stars
initial mass
Which stage comes first in the life cycle of a high-mass star?
red giant
white dwarf
protostar
Answers
Why does transporting materials during production release carbon dioxide?
-Materials release carbon dioxide as they move around in vehicles.
-Materials exposed to air get warm easily. The warm materials release more carbon dioxide.
-Materials break down as they move and cause pollution. Pollution releases carbon dioxide.
-Vehicles used to move materials consume fuel and release carbon dioxide.
Answers
Answer:4
Explanation:
Individual organisms have a variety of traits that make them different from each other. Traits such as fur color and eye color vary from one individual to another. What determines the traits of an individual organism?
Answers
Answer:
Traits can be determined mostly by genes but can be by environmental factors, or a combination of both. Traits can be qualitative (such as eye color) or quantitative (such as height or blood pressure) A given Trait is part of an individual's overall phenotype.
I hope this helps you out!
A student wants to know how the number of geese in a study area affects the number of parts in their songs. She performs an experiment and records the data in a table.
Which two terms describe this type of data?
A.
Quantitative
B.
Empirical
C.
Theoretical
D.
Qualitative
Answers
The two terms that describe this type of data are Quantitative and Qualitative. Therefore, the correct options are A and D.
Data that can be measured and expressed numerically, denoting quantities or amounts, is called quantitative data. In this example, the number of geese is counted and correlated with the number of pieces in their symphony. Instead of being numerical, descriptive and categorical data are called qualitative data. In this example, it is observed and noted how many sections are in the swan songs (descriptive categories).
Therefore, the correct options are A and D.
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What is your carbon footprint?
A: the amount of carbon dioxide you use when recycling
B: the amount of oxygen put into the atmosphere due to your consumption of fossil fuels
C: the amount of carbon dioxide and oxygen in the atmosphere at any given time
D: the amount of carbon dioxide put into the atmosphere due to your consumption of fossil fuels
Answers
Answer:
D
Explanation:
According to WHO, a carbon footprint is a measure of the impact your activities have on the amount of carbon dioxide (CO2) produced through the burning of fossil fuels and is expressed as a weight of CO2 emissions produced in tonnes.
Help me please I don’t understand
Answers
Answer:
1:Natural selection
2: competition
Natural selection; the process by which organisms with variations most suited to their local environment survive and leave more offspring.
Competition: The struggle between organisms to survive in a habitat with limited resources (food, water, shelter)