I'LL GIVE BRAINLIST
What advantages does wifi applications of waves have over the previous technology?

Answers

Answer 1
Wi-Fi technology has its origins in a 1985 ruling by the U.S. Federal Communications Commission that released the bands of the radio spectrum at 900 megahertz (MHz), 2.4 gigahertz (GHz), and 5.8 GHz for unlicensed use by anyone. Technology firms began building wireless networks and devices to take advantage of the newly available radio spectrum, but without a common wireless standard the movement remained fragmented, as devices from different manufacturers were rarely compatible. Eventually, a committee of industry leaders came up with a common standard, called 802.11, which was approved by the Institute of Electrical and Electronics Engineers (IEEE) in 1997. Two years later a group of major companies formed the Wireless Ethernet Compatibility Alliance (WECA, now the Wi-Fi Alliance), a global nonprofit organization created to promote the new wireless standard. WECA named the new technology Wi-Fi. Subsequent IEEE standards for Wi-Fi have been introduced to allow for greater bandwidth. The original 802.11 standard allowed a maximum data transmission rate of only 2 megabits per second (Mbps); 802.11n, introduced in 2007, has a maximum rate of 600 Mbps.

Under the IEEE Wi-Fi standards, the available frequency bands are split into several separate channels. These channels overlap in frequency, and therefore Wi-Fi uses channels that are far apart. Within each of these channels, Wi-Fi uses a “spread spectrum” technique in which a signal is broken into pieces and transmitted over multiple frequencies. Spread spectrum enables the signal to be transmitted at a lower power per frequency and also allows multiple devices to use the same Wi-Fi transmitter. Because Wi-Fi signals are often transmitted over short distances (usually less than 100 metres [330 feet]) in indoor environments, the signal can reflect off walls, furniture, and other obstacles, thus arriving at multiple time intervals and causing a problem called multipath interference. Wi-Fi reduces multipath interference by combining three different ways of transmitting the signal (in a method developed by Australian engineer John O’Sullivan and collaborators). The popularity of Wi-Fi has grown steadily. Wi-Fi allows local area networks (LANs) to operate without cables and wiring, making it a popular choice for home and business networks. Wi-Fi can also be used to provide wireless broadband Internet access for many modern devices, such as laptops, smartphones, tablet computers, and electronic gaming consoles. Wi-Fi-enabled devices are able to connect to the Internet when they are near areas that have Wi-Fi access, called “hot spots.” Hot spots have become common, with many public places such as airports, hotels, bookstores, and coffee shops offering Wi-Fi access. Some cities have constructed free citywide Wi-Fi networks. A version of Wi-Fi called Wi-Fi Direct allows connectivity between devices without a LAN. Radiotelegraphy, radio communication by means of Morse Code or other coded signals. The radio carrier is modulated by changing its amplitude, frequency, or phase in accordance with the Morse dot-dash system or some other code. At the receiver the coded modulation is recovered by an appropriate demodulator and the code groups are converted into the corresponding symbols. In many instances the symbols are generated by a computer and modem rather than with a manual telegraph key.

Related Questions

Which of the following is composed of monosaccharide monomer units? A.nucleic acids B. proteins C.carbohydrates D. lipids
No LINKS PlEASE​

Answers

Answer:

c

Explanation:

Monosaccharides are the building blocks of disaccharides (such as sucrose and lactose) and polysaccharides (such as cellulose and starch).

Higher Classifications: Carbohydrate; Sugar

The correct option is (c) carbohydrates .

The monomer units for constructing DNA and RNA are nucleotide bases, whereas amino acids, sugar residues, fatty acids, and acetyl groups are the monomers for proteins, carbohydrates, and lipids, respectively.Large polymers made of hundreds of monosaccharide monomers are known as polysaccharides, sometimes known as glycans. Polysaccharides, in contrast to mono- and disaccharides, are not sweet, and they typically are not soluble in water. The monomeric units of polysaccharides are joined by glycoside, linkages, just like disaccharides.

What units are carbohydrates made up of?In the case of carbohydrates, the small repeating units are called monosaccharides. Carbohydrates contain only carbon, hydrogen, and oxygen.

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The base of all ocean food chains are formed by

Answers

Answer:

Phytoplankton

Explanation:

These animals are similar in many ways except for which one of the following?
A. Both lay eggs on land.
B. Both can survive on land or in water.
C. Both mothers stay close to their eggs.
O D. Both look like adults, only smaller.

Answers

A is the answer to this question

1. Which of the following solid substances could be classified as the most dense?

A. Solid A

B. Solid B

C. Solid C

D. It cannot be determined from the given information.

Choose The Correct one answer.

Answers

D I believe it work hope this work

Which is the smallest of the terrestrial planets?
A. Mercury
B. Earth
C. Venus
D. Mars

Answers

Answer:

A. Mercury

Explaination:

Explaination

Help me with the vital signs and diagnostic signs and past medical history and patient history what is the answer for them according to the case pls help Help pls need it fast

Answers

Answer:

No.

Explanation:

help pleasee!! A fern plant is growing in the forest by Scott's house. The leaves of the fern plant are small and green. Scott often finds small caterpillars eating the leaves of the fern plant. Which of the following is an inherited characteristic of the fern plant? No links!!

A. The shape of the fern plant’s leaves.
B. The location of the fern plant inside the forest.
C. The distance of the fern plant from Scott’s house.
D. The number of leaves that are eaten by caterpillars.

Answers

Answer:

Can't be B

Can't be C

Can't be D

The correct answer should be A!

Hope this helps.

how is a trait passed down from parents to offspring USE OWN WORDS

Answers

A trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. We represent these gene pairs by writing a combination of two letters. For example, if one parent contributes a gene for blue eyes (c), and other parent contributes a gene for brown eyes(C), then we write the offspring’s eye color trait as Cc. This combination, of the two genes that determine the trait, is called a genotype. If gene pair contains a dominant allele, the the offspring will show this dominant trait

Which type of fuel produces greenhouse gases?
A. Hydroelectric
B. Wind
C. Biomass
D. Nuclear

Answers

The type of fuel produces greenhouse gases is the Biomass fuels.

Who are fossil fuels?

Fossil fuels include oil and its derivatives, coal and natural gas, all formed by the decomposition of living organisms.

The main cause of the greenhouse effect is industrialization. Due to this process, the burning of fossil fuels has intensified in recent centuries. The main products of the combustion reaction of these reagents are the gases mentioned above as the main ones for the greenhouse effect.

in this case, biomass fuels are plants, animals and their derivatives are biomass. Use as fuel can be made from its raw form, such as wood, agricultural products and residues, forest residues, livestock residues, animal excrement and garbage. In other words, are fossil fuels and podruces greenhouse gases.

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All of the following have been accomplished by space programs except-

A. placing semi-permanent structures in earth’s orbit

B. landing spacecraft on planets other than our own

C. sending spacecraft into orbit that allow us to study the universe in greater detail

D. develop technology and resources capable of sending the general population into space on a regular basis

Answers

Answer:

D

Explanation:

Develop technology and resources capable of sending the general population into space on a regular basis.

What is Developmental Technology?

L. Mumford presented an intriguing theory regarding the origin of technology, contending that biotechnology gave rise to both machine and gun technology.

Technique is derived from the characteristics of how people behave and, in its earliest forms, is directly tied to the origin of man. It was first and foremost life-focused, and only afterwards was it work-focused.

According to L. Mumford, technique with a focus on power and output developed much later. He held that the impersonal aspects of human adaptability to the outside world are what give origin to technology.

Therefore, Develop technology and resources capable of sending the general population into space on a regular basis.

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Which statement below would best illustrate the concept of natural selection?
A an organism can return to the characteristics of its ancestors
B a population of animals will move from one region to another
those organisms that are best adapted to the environment will survive to produce more offspring
D all organisms are made up of cells

Answers

Answer:

C. those organisms that are best adapted to the environment will survive to produce more offspring

Explanation:

Natural selection is a key concept in the formulation of the theory proposed by Darwin in 1859. Natural selection is defined as the main force that drives the prevalence and the increase of advantageous phenotypic traits. Selection natural acts by differential survival and reproduction of individual organisms that have better adapted to the environmental conditions in which these organisms live. These organisms with a greater adaptive fitness have more chances to survive and reproduce, thereby transmitting (and perpetuating) their genes to the following generations.

Answer:

those organisms  that are best adapted to the environment  will survive to produce more offspring

Explanation:

those organisms  that are best adapted to the environment  will survive to produce more offspring

How do some chemicals increase the risk of a person getting cancer ?

A. By causing cell mutations

B. By causing a decrease in the immune response

C. By causing an increase of toxins in the skin

D. By causing a deficiency of Vitamin D

Answers

Answer:

A. By causing cell mutations

Can anyone help me out here? This is the final question I have to do, and it is really hard and it is due at 5:00!

Answers

Answer:

number 1 is the sun and number 2 is 98.8

Explanation:

the starting cell must duplicate its chromosomes in interphase before mitosis or meiosis can begin. does this change the number of chromosomes? chromatoids? both? how many of each would you expect in a human cell after interphase? (i need the second question answered plz)

Answers

the link is in the file above

Plz help me well mark brainliest if you are correct!

Answers

Answer:

A

Explanation:

A meteor is a rock falling from the galaxy and usaully is burning because of the atmosphere.

a Meteor
_______________

Which is it MUTUALISM, PREDATION, and COMPETITION


The Canadian lynx and snowshoe hare both live in the northern forests of Canada and Alaska. The population of snowshoe hares rises and falls based on resource availability When the population of snowshoe hares falls, the Canadian lynx suffers from lack of food resources.​

Answers

Answer:

Predation.

Explanation:

5-10 statistics or interesting facts about kingdom Protista

Answers

What grade are you in?

When energy is transferred to or from a substance, it can change the molecules’ freedom of movement. True or False?

Answers

Answer:

True

Explanation:

When transfer energy, the substance's temperature changes which can change the molecules' freedom. For example, when water freezes the water molecules loose temperature and slow down, unlike in a gas where molecules are free and energetic.

When plants that are true breeding for different traits of a
characteristic are crossed, the trait observed in the first generation
is called the
a. dominant trait.
b. recessive trait.
c first-generation trait.
d. second-generation trait.

Answers

Dominant trait if I’m remembering correctly!

Step 5: Locate fronts and forecast weather patterns.
a) Use Map D in the Data section.
b) Label the high pressure area with an H.
c) Label the low pressure area with an L.
d) Recall that fronts occur where there are large changes in temperature, air pressure, and
wind speed. Remember that the more fletches, or lines, on a weather symbol indicate higher
wind speeds. Using a blue colored pencil, draw and label the cold front on the map.
e) Using a red colored pencil, draw and label the warm front on the map.
f) Use the map to answer the follow-up questions.

Answers

I believe that it most likely would be C,

what two spheres are interacting when ocean water evaporates into the air
1. geosphere
2. hydrosphere
3. atmosphere
4. biosphere

Answers

Hydrosphere and Geosphere

What type of plate boundary is shown in the diagram

A. Subduction boundary
B. Convergent boundary
C. Divergent boundary
D. Transform boundary​

Answers

I'll need to see a picture of the diagram to be able to answer this luv!?

Weather is made up of a variety of conditions in the atmosphere. It includes temperature, or the amount of ____ in the air, as well as humidity, the amount of ____ in the air. Pressure is another factor of weather as it affects wind, or the motion of ____. Precipitation also affects weather, and includes ____ and other forms of water that falls from clouds.

Answers

I don't have an answer, but your doing this in college, when I need this in my 6th grade earth science? dang lol

A macaw is a type of parrot with colorful feathers that flies about in the upper canopy of trees in tropical rainforests. Macaws have a diet which includes fruits, leaves, nuts, and seeds of plants. Which of the following describes a biotic factor of the macaw's habitat that provides a survival advantage for these birds?​

Answers

Answer:

Trees provide shelter and abundant food supplies

Answer:

Trees provide shelter and abundant food supplies.

Explanation:

Living Trees

Trees support the lives of many large organisms. Trees are used for food, shelter, and sites for reproduction. Many animals also use trees for resting, nesting, and for places from which to hunt or capture prey.

2. Using the principles of
dominance and segregation to
analyze the diagram, what alleles
would you expect in the F1
plants?
A. Purple: FF /White:
ff
B. Purple: Ff/ White: ff
C. Purple: ff / White:
FF
D. Purple: ff / White: Ff
Chael Are

Answers

Answer:

A. Purple: FF /White: ff

Explanation:

I did it too lol

Purple: FF /White: ff the principles of dominance and segregation to analyze the diagram, alleles would you expect in the F1 plants. Thus, option (a) is correct.

What is segregation?

The Segregation Principle defines how pairs of gene variations are divided into reproductive cells. Gregor Mendel discovered the segregation of gene variants, known as alleles, and their accompanying qualities in 1865. During meiosis, allele pairs (different features of the same gene) are separated so that they can pass to distinct gametes.

The diagram was analyzed using the principles of supremacy and segregation. The principle of the impact in segregation was described as Purple: FF / White: ff. This inheritance pattern is known as partial dominance, which means that neither allele is completely dominant over the other: both genotypes can be seen at the same time.

As a result, the Purple: FF /White: ff the principles of dominance and segregation.

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The above pictures show the interaction of pollinators (like insects, birds, and bats)
and flowering plants. Use the above pictures and what you learned in your science class to answer the follow

• Construct an explanation on how pollinators and flowering plants interact and affect each
other.

• What do you predict would happen to flowering plants if they blended into their
surroundings? Explain.

pls help me. i beg you

Answers

Answer:

The pollinators help spread the pollen of the flowering plants to help them reproduce. If the flowering plants blended into their surroundings, the pollinators would not be able to identify the flowering plants, and the plants would eventually die off or become extinct.

Explanation:

Can you help, please?

Answers

Answer:

D

Explanation:

How did NASA help to uncover the adaptations that are made due to living in extreme environments?

By analyzing changes in one twin on Earth and the other in space.
By introducing animals and other organisms that could be studied in space.
By running experiments on astronauts that were in space for over a year
By observing changes in retired astronauts over a period of ten years.

Answers

Answer:

A

Explanation:

I took this at flvsa lol

4. A woman with defective tooth enamel (autosomal recessive) and normal color vision, (X-linked) who had a color blind father with normal tooth enamel and a mother with normal vision and defective tooth enamel, marries a color blind first cousin with normal tooth enamel who had a father with defective tooth enamel. What is the probability of their having a child with normal tooth enamel and color blindness

Answers

Answer:

The probability of their having a child with normal tooth enamel and color blindness is 3/8 or 0.375

Explanation:

Let the alleles for normal and defective tooth enamel be T and t respectively.

Color blindness is on the X-Chromosome. Let the allele normal vision and colour blindness be Xn and Xc respectively.

The woman had a colour blind father (XcY) and a normal vision mother, so her allelic pair for vision will be XnXc.

Her father had normal tooth enamel while her mother had a defective tooth enamel, therefore, she will have the allelic pair, Tt.

Her genotype for vision and tooth enamel will be XnXcTt.

Her husband who is color blind with normal tooth enamel had a father with defective tooth enamel, tt. Therefore, her husband's genotype for vision and tooth enamel will be XcYTt.

From the dihybrid cross of XnXcTt and XcYTt, the following offspring are obtained:

XnXcTT, XnXcTt, XnYTT, XnYTt

XnXcTt, XnXctt, XnYTt, XnYtt

XcXcTT, XcXcTt, XcYTT, XcYTt

XcXcTt, XcXctt, XcYTt, XcYtt

From the results of the cross, a child with normal tooth enamel and color blindness will have the following genotypes: XcXcTT, XcXcTt, XcYTT, XcYTt, XcXcTt, XcYTt.

Probability of their having a child with normal tooth enamel and color blindness = 6/16 = 3/8 or 0.375

What might be limiting resource for sharks in their ecosystem

Answers

Answer:

Sharks keep ocean ecosystems in balance

Sharks limit the abundance of their prey, which then affects the prey of those animals, and so on throughout the food web. Because sharks directly or indirectly affect all levels of the food web, they help to maintain structure in healthy ocean ecosystems. HOPE THIS HELPS!!!!!!!!

Explanation:

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