Answer:
Staphylococcal infection can affect the: Skin: Most commonly, Staphylococcus aureus bacteria cause skin infection. This can produce boils, blisters, and redness on the skin.
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=
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
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?
predict how many paper clips a 7.5 V battery would pick up for both the 25-
coll electromagnet and the 50-coll electromagnet.
per clips
a 7.5 V battery woua pick up for both the 25-
Answer:
B. is correct
Explanation:
You are designing an office building. In order to reduce noise from high-frequency sounds between offices above and below each other, would you choose carpet on concrete or wood floors? Explain your answer.
Answer:
concrete has more mass and it will block more noise than than the wood plus the wood is thiner the thicker the substance is the better u won't hear noise
Explanation:
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.
Geologic and fossil evidence suggests that all landmasses were once connected in a supercontinent named PangaeaWhat geologic phenomenon can exp the change from Pangaea to the current arrangement of continents?
A. Changes in tectonic plate positions
B. Changes in volcanic activity in the oceans
C. Changes in rock weathering and soil erosion
D. Changes in oceanic currents and temperatures
Answer:
A
Explanation:
continental drift
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.
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:
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:
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!
HELP PLEASE I dont understand this (7th Grade science)
please help b4 i literally will get killedd PLZZZ.
What is the effect of climate on ice?
How does ice affect water systems?
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
Which characteristic can be inherited?
acting ability
sense of humor
short temper
long toes
Answer:
acting ability i think hope it helps
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
What are three types of variations within populations or species?
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.
Giving brainliest for answers too ALL 3
PLease help Will give brainliest
Answer:
um ewww
Explanation:
10. i think is c
11. i think i d
Hope this helps!
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.
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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
How is the DNA within a cells’ nucleus like that of a computer?
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:
Help me please!!!!!!!!!
Answer:Pores,collar,spicules
Help?
The question is down below
Answer:
They need to have a full outer shell to be stable so they bond with each other and share electrons to become stable forming a compound.
Explanation:
Hope this helps!
when heat is removed from a substance, describe how are the molecules affected
ANSWER ASAPP GIVING BRAINLIEST AND STUFF!
Write a short paragraph about electrical current using the terms conductor and insulator.
Answer:
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. An electrical insulator is a material in which the electron does not flow freely or the atom of the insulator have tightly bound electrons whose internal electric charges do not flow freely; very little electric current will flow through it under the influence of an electric field.
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