Answer:
B The cells of the body use the oxygen to release the energy from the food.
Explanation:
Good Luck!
ANSWER ASAPP GIVING BRAINLIEST AND STUFF!
Write a short paragraph about electrical current using the terms conductor and insulator.
Answer:
Bet
Explanation:
In a conductor, electric current can flow freely, in an insulator it cannot. "Conductor" implies that the outer electrons of the atoms are loosely bound and free to move through the material. ... Most atoms hold on to their electrons tightly and are insulators.
describe the conditions that affect the rate of a chemical reaction.
I NEED HELP WITH THIS PLEASE
Answer:
The rates at which reactants are consumed and products are formed during chemical reactions vary greatly. Five factors typically affecting the rates of chemical reactions will be explored in this section: the chemical nature of the reacting substances, the state of subdivision (one large lump versus many small particles) of the reactants, the temperature of the reactants, the concentration of the reactants, and the presence of a catalyst.
Explanation:
READ THIS AND ANSWER THE QUESTIONS BELOW!!!!!!!!!1
Celestial bodies emit different types of radiation, only some of which can be detected by traditional telescopes. Radio waves are invisible rays that can be detected only by radio telescopes. A radio telescope functions like a television antenna. Radio waves from space are sensed by a gigantic parabolic reflector, which concentrates them toward the top of a focusing antenna. A radio receptor converts the radio waves into electrical signals which are amplified and then transmitted to the center of the parabola. They are then recorded and analyzed in the laboratory so that scientists can obtain a radio image of the source observed. The parabolic antenna can usually be oriented to detect radio waves from all directions of space. Some radio telescopes are fixed. The largest radio telescope in the world, located in Arecibo, Puerto Rico, is fixed. Built in a natural valley shaped like a giant parabola, its reflector measures 305 meters in diameter. Mobile detectors suspended from cables permit the scanning of one of part of the sky. Unlike traditional telescopes, radio telescopes can be used both day and night, even when there is cloud cover.
Electromagnetic waves can carry more data at higher frequencies. Why would a scientist opt to transmit data at a lower frequency instead?
What are the limitations of sending information using electromagnetic waves?
What are the differences between analog and digital signals?
What are the advantages of using digital signals over analog signals?
Using reliable internet sources, identify three ways we use analog and digital signals in our everyday lives.
Answer:1)The reason as to why scientists opt to transmit data at lower frequency instead of electromagnetic even if it can carry more data at a higher frequencies is because using higher frequencies of electromagnetic spectrum travel shorter distances but have higher data carrying capacity.So this physical characteristic of electromagnetic waves limits the range and availability of frequencies for sending information.
2) Limitations of using electromagnetic waves in sending communication
communication is a process of transmitting and receiving information in the form of signals.high technology communication use electromagnetic waves,there are various types of electromagnetic waves which are used in communication which include radio-waves,microwaves,infrared e.t.c some of their limitations are
i)Because there is limited number of broadcast frequencies the use of transmitters must be restricted in some way or they will seriously interfere with each other.
ii)Through the air signals can be distorted by atmospheric conditions and signals from space are sometimes distorted by solar activity
iii)physical activities such as mountains and buildings can prevent or interfere with some transmissions
iv)Through the air signals are not private,so any tuned receiver within the range can pick up them.
3)Differences between digital and analogue signals
Analogue and digital signal are used to transmit information usually through electric signals.
An analogue signal is continuous wave denoted by sine wave and may varry in signal strength (amplitude) or frequency(time) an example is sound from human voice is analogue because waves are continuous..
A digital signal is a signal in which the original information is converted into a string of bits before being transmitted .example a must for computer processing where is described as using (0s and 1s)and therefore can not take any fractional value.
4)Advantages of using digital signals over analogue signals
one advantage of digital signals are inherently less susceptible than analog signals to interference caused by noise because with digital signal it is not necessary to evaluate precise amplitude,frequency or phase.
Another advantage based in capacity is that digital signals carry more information per second than analogue signals.
Digital signals maintain their quality over long distances better than analogue signals.
5)How we use digital and analogue signals in our everyday live
digital signal processing is the way of life of current generation
example is mobile phones do alot of digital signal processing .they process our our speech digitally to remove background noise,echo e.t.c
Television also do a lot of digital processing of video,audio signal to present them in a better way.
How radio telescopes are used to explore space
A radio telescope is a specialized antenna and radio receiver used to receive radio waves from astronomical radio sources in the sky in radio astronomy.It has several main parts, a dish and antenna,a receiver,a detector and an analyzer.The dish collects the radio signals from space ad focuses them on the antenna.
6)How radio waves are used on earth
Radio waves are used to transmit television and radio programs They have longer wave lengths and are reflected by the ionosphere
7) Reasons why telescopes convert radio waves (analog) to electrical(digital) signals for analysis
This is because signals can be easily stored and transmitted in digital form.The analog is continuous in time and it is necessary to convert this to a flow of digital values.
Explanation:
couldnt make my own so...
Answer:
Explanation:
READ THIS AND ANSWER THE QUESTIONS BELOW!!!!!!!!!1
Celestial bodies emit different types of radiation, only some of which can be detected by traditional telescopes. Radio waves are invisible rays that can be detected only by radio telescopes. A radio telescope functions like a television antenna. Radio waves from space are sensed by a gigantic parabolic reflector, which concentrates them toward the top of a focusing antenna. A radio receptor converts the radio waves into electrical signals which are amplified and then transmitted to the center of the parabola. They are then recorded and analyzed in the laboratory so that scientists can obtain a radio image of the source observed. The parabolic antenna can usually be oriented to detect radio waves from all directions of space. Some radio telescopes are fixed. The largest radio telescope in the world, located in Arecibo, Puerto Rico, is fixed. Built in a natural valley shaped like a giant parabola, its reflector measures 305 meters in diameter. Mobile detectors suspended from cables permit the scanning of one of part of the sky. Unlike traditional telescopes, radio telescopes can be used both day and night, even when there is cloud cover.
Electromagnetic waves can carry more data at higher frequencies. Why would a scientist opt to transmit data at a lower frequency instead?
What are the limitations of sending information using electromagnetic waves?
What are the differences between analog and digital signals?
What are the advantages of using digital signals over analog signals?
Using reliable internet sources, identify three ways we use analog and digital signals in our everyday lives.
Answer:
Explanation:
How is the DNA within a cells’ nucleus like that of a computer?
Which characteristic can be inherited?
acting ability
sense of humor
short temper
long toes
Answer:
acting ability i think hope it helps
Please answer each question! Due today! Will mark brainliest!
1.) How does hydrokinetic energy connect to magnetism?
2.) How does hydrokinetic energy connect to circuits?
3.) How does hydrokinetic energy connect to magnets?
4.) How does hydrokinetic energy connect to electrical charges?
5.) How does hydrokinetic energy connect to the parts of waves?
Answer:
1.They generate power only from the kinetic energy of moving water (current).
2.relating to the motions of fluids or the forces which produce or affect such motions — compare hydrostatic.
3. It uses water motion to generate a high-pressure liquid rather than electricity.
4. tidal currents, ocean currents or river currents into electrical power.
5.When flowing water is captured and turned into electricity, it is called hydroelectric power or hydropower. There are several types of hydroelectric facilities; they are all powered by the kinetic energy of flowing water as it moves downstream.
Explanation:
In a collision, a 25.0 kg mass moving at 3.0 m/s transfers all of its momentum to a 5.0 kg mass. What is the velocity of the 5.0 kg mass after the collision?
P=
m=
v=
Pls help asap!!! BrainIdentify one source of carbon that can be found in each of these four spheres: atmosphere (air), geosphere (land), biosphere (living organisms) and hydrosphere (water).
liest to correct answer!!!
Answer:
It is carbon dioxide
Explanation:
All source relies on it Because if they dont have it then its not considered a source of anything else.Carbon dioxide refers to the source of carbon that can be found in each of the four spheres.
What is Carbon dioxide?This is an acidic colorless gas which are found in trace amounts in the ecosystem.
Plants use it to produce food and they act as sources of carbon thereby making it the most appropriate choice.
Read more about Carbon dioxide here https://brainly.com/question/14445045
What are three types of variations within populations or species?
Which has a higher temperature: a snowman or a lit match?
Group of answer choices
lit match
snowman
No answer text provided.
Answer:
Snowman
Explanation:
Probably because when you throw the match the snowman will devour it because it has an higher temperature of coldness.
10 points for 5 questions plz help I need this done in the next 30 mins or like ASAP pleeeeeesssssssssssssssssssssssssssssssssss
i also am puting more out tooooooo
Answer
im thinking its D or E
Explanation:
If a scientist wants to make molecules move slower, what should they do? A. decrease their kinetic energy B. Transfer energy out of them C. Put them in a freezer D. All of the above
What is a pollinator?
A) an animal that transfers pollen from flower to flower
B) a colorful flower that attracts insects
C) an insect that makes pollen
D) a flower that produces fruit for animals to eat
Will mark brainliest
It's A: an animal that transfers pollen from flower to flower.
Good Luck!
Which water feature is often associated with condensation?
Frozen lakes
The ocean
Clouds and fog
Water vapor rising from plants
Clouds and fog are water features often associated with condensation. The correct option is C.
The process by which water vapour, a gaseous form of water, changes into liquid water is called condensation.
When warm, moist air meets a cooler surface or when the air itself cools, it happens. As a result of this cooling, water vapour loses energy and condenses into tiny water droplets or ice crystals, which are what are seen as clouds or fog.
Even though the ocean and frozen lakes are both connected to water, condensation is not a direct result of either of these. As opposed to condensation, water vapour rising from plants is a result of transpiration.
Thus, the correct option is C.
For more details regarding Condensation, visit:
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Your question seems incomplete, the probable complete question is:
Which water feature is often associated with condensation?
A. Frozen lakes
B. The ocean
C. Clouds and fog
D. Water vapor rising from plants
Robert is baking a cake. The instructions tell him to weigh all the ingredients before mixing. He has 100 g of eggs, 100 g of water, and 250 g of flour. He decides to weigh the cake after baking. It weighs 425 grams. He is confused by the results. Which answer supports what happened during the mixing and baking process.
A. Baking is a closed system, so he must have mismeasured. None of the reactants left the system.
B. Baking is an open system, so he must have mismeasured. None of the reactants left the system.
C. Baking is a closed system, so he measured correctly. Some of the reactants may have left the system.
D.Baking is an open system, so he measured correctly. Some of the reactants may have left the system
Answer: C.Baking is a closed system, so he measured correctly. Some of the reactants may have left the system.
Explanation : baking is a closed system and he probably didnt measure wrong so i think in the baking it lost some.
Help me please!!!!!!!!!
Answer:Pores,collar,spicules
What type of tide is Australia likely to be experiencing in the diagram on the RIGHT and why? In your own words explain what is happening?
Answer:
Spring tides are extremely high and extremely low. This is created when the sun and moon pull together.
Explanation:
From the diagram, the type of tide Australia is likely to be experiencing is: neap tides.
A tide can be defined as the rise and fall of water level in water bodies such as lakes and oceans, especially due to the gravitational force of attraction exerted by the Moon and Sun on planet Earth.
Generally, there are two (2) main types of a tide and these include:
High tide.Low tide.Additionally, the two (2) form of a tide are:
I. Spring tide: it occur s twice each month close to the the full and new
moons, especially when the Moon and Sun pull together.
II. Neap tide: it occurs two times in a month when the Moon is close to its first and last quarters, especially when the Moon and Sun pull at a right angle.
From the diagram, the type of tide Australia is likely to be experiencing is neap tides because it happened when the Moon is close to its first and last quarters and the Moon and Sun were pulling at a right angle.
Read more: https://brainly.com/question/21694593
Help,
The question is down below
Answer:
C. A new gas was created and the gas took up more space
Answer:
C
Explanation:
What is the effect of climate on ice?
How does ice affect water systems?
Using your knowledge of the reflection, absorption, and transmission of mechanical waves, Why do you think the foam is used, and how do you think it functions?
Which food combination produces a protein complete meal?
white rice and broccoli
brown rice and beans
white bread and cheese
peanut butter and jelly
Answer:
brown rice and beans
Explanation:
because the rice is really filling and healthy while beans have proteins
Answer:
the second option
Explanation:
hope this helps
trigger warning/ su1cide
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how do you break up with someone over text because hes saying he’ll k1ll himself if you dont do what he wants you to do?
Answer:
tell his family about how he's manipulative or make him realize that even if you guys are still together you don't have feelings anymore
Answer:
what is the thing he wants you to do? this is hard. do you think he is serious and he will actually do it? if not, it's not worth the pain of staying in a relationship.
Explanation:
make it look messy
Weather refers to short term atmospheric conditions while climate is the weather of a specific region averaged over a long period of time.
Avanti works in a bookstore. She has four books and is going to place them in two stacks. The diagram above shows the books before they touch. Use the information in the diagram to answer the question
Answer:
She has such a sad life....but I work part time in a bookstore-
Explanation:
How do landmasses impact the movement of air and water?
(A) They stop all movement of both air and water.
(B) They speed up the air and water and allow it to pass though.
(C) They change the direction and slow them down.
(D) They slow down the air but speed up the water.
Why is it not easy to replace a link in a food chain?
The decomposers will not decompose another type of organisms.
There are not enough plants to replace the previous organisms.
There are not enough animals to replace the previous organism.
There may be limited type of natural predators organisms may have.
Answer:
D-the last option
Explanation:
I think I'm correct.
Giving brainliest for answers too ALL 3
please help b4 i literally will get killedd PLZZZ.
Which has more thermal energy: a snowman or a lit match?
Group of answer choices
snowman
lit match
No answer text provided.
I need some help with this oddly specific science question Why are sea breezes felt during the day and land breezes at night?
A.
The land and the air above it heats and cools slower than the water, causing a land breeze at night and a sea breeze during the day.
B.
The land and the air above it heats and cools faster than the water, causing a land breeze at night and a sea breeze during the day.
C.
High tides cool off the beach, causing a land breeze at night and a sea breeze during the day.
D.
High tides cool off the beach, causing a sea breeze at night and a land breeze during the day.