A student is investigating mechanical and electromagnetic waves. She is creating a list of questions to include in her investigation about the properties of each type of wave. Which is NOT a question that she can ask that will allow her to learn about the properties of both mechanical and electromagnetic waves?
A
What is the amplitude of the wave?
B
What is the frequency of the wave?
C
What is the wavelength of the wave?
D
What is the wave speed in a vacuum?
Answer:
It would be B
Explanation:
I am sorry if it is wrong
"What is the frequency of wave?" is not a question that she can ask. Thus, the correct option is B.
What is the frequency of wave?Wave frequency is the number of waves which pass through a fixed point in a given amount of time. The SI unit for wave frequency is the hertz (Hz). One hertz (Hz) equals 1 wave passing a fixed point in the time period of 1 second. A higher-frequency wave has more energy than a lower-frequency wave with the same magnitude of amplitude.
The equation used for determination of wave frequency (f) will be:
f = v/λ
where λ is the wavelength in meters and v is the speed of the wave in m/s.
Therefore, the correct option is B.
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Thomas Malthus was an economist who influenced Darwin's developing theory of evolution. Malthus observed that the birthrate among humans exceeded the death rate. If this trend continued, soon there would not be enough resources to support human population growth. He reasoned that the only things capable of stopping human population growth were famine, disease, and war. Darwin applied this thinking to animals and plants as well, noting that far more offspring were produced than survived to a reproductive age. 2. How did Charles Darwin build on the work of Thomas Malthus to develop the idea of evolution by natural selection
Answer:
The work of Thomas Malthus help and influence Darwin Thomas to refine his theory of natural selection by explaining that there is a meaningful competition between the individuals of a particular species or population for a specific resource such as food or shelter.
Thomas Malthus predicted that the human population is reproducing faster than its death race and will lead to growing faster than space and food supplies needed to sustain it. Darwin concluded further that If all offspring of almost any species survived for several generations, they would overrun the world and therefore a healthy and meaningful competition is present and to overcome this natural selection takes place as the individual adapt will ultimately survive.
Which of the following best describes the connection between cardiovascular disease and age?
a student wants to hold the sides of a garbage bag to the sides of her trash can she tries round rectangular and square shaped magnets but the magnets do not stick to the sides of the trash can, what is a reason the magnets do not stick to the sides of the trash can ?
Answer:
If the insulating material covered around the can.
Explanation:
If the can is covered with thick layer of insulating material then it can't be attracted by the magnet because there is a gap between magnet and metal. Can is a metal which is attracted by the magnets just like iron and copper etc. If there is no insulating material between magnet and can, then it must be attracted by the magnet so that's why we can say that insulating material is responsible for the no attachment of magnet to the can.
what are preconditions for planting tree
Will give brainlest 100 points
Answer:
try b
Explanation:
compare the effect of human activity and natural processes on watersheds
Answer:
What effect do human activities have on natural resources?
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
this is somewhat similar
Answer the question
Transport of large molecules such as starch across the cell
membrane can occur through
a Endocytosis
b Exocytosis
C Both A and B
d None of the above
Explanation:
I think its D...
It seems like active transport
please help asap no links
Answer:
I'm really sorry but I don't know the answer
Question 12
If an insecticide reduced the population of grasshoppers , what would happen to the population of shrew ?
A. Increase
B. Decrease
C. Remain the same
D. Run amuck
16. The substances that are reabsorbed did not diffuse (move) from the nephron bowl into the
renal vein cup. You needed to use lots of energy to make reabsorption happen. Which
process do you think the kidney uses to transport these substances from the nephron to the
renal vein-active transport or diffusion (passive transport)? Explain your answer.
Answer:
Active transport.
Explanation:
The kidney uses active transport to move these substances from the nephron to the renal vein because these substances did not moves from the nephron bowl to the renal vein through simple diffusion so for this purpose active transport is used in which energy is spent in order to move the substances from one region to another so we can say that kidney must use active transport to move reabsorbed substances from the nephron to the renal vein.
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Contrast the contraction of the a disease by the environmental, heredity/genetic and pathogenic pathways.
Answer:
Explanation:
Contraction of a disease by the environment, the environment is said to influence something certain traits either by amplifying them or prevent them from being expressed. Some disease tends to strive in environment that is favorable while some disease don't find expression where the environment is not conducive even though they are presents in the gene of the individual. Environment could include family, area where the individual lives, food, peer
While Contraction of disease that are heredity/genetic and having pathogenic pathways is high this is because any disease that is hereditary can be passed to successive generation through the inheritance of such gene from the parents this increase the likelihood of reoccurrence of such disease in a family where the parents has it.
Select all that apply.
Tragically, the United States lost astronauts in accidents involving:
Challenger
Columbia
Apollo 11
Viking 11
Vostok 1
What forms of energy are there?
mechanical, kinetic, potential, gravitational, thermal, chemical, electrical, light, radiant, sound, and nuclear.
What is are local winds in your own words but be more detailed about what you say.
I think local winds is like somewhere where it is usually windy with high pressures. For example see breezes, land breezes, and etc.
Hope this helps!
hello please help i’ll give brainliest
Answer:
Second choice.
Explanation:
Symbiosis is when two organisms help each other, usually benifitting one if not both of the said orgaisms.
This biome has cactus plants, less rainfall, and more sand. A) savannah B) desert c) tundra
Answer:
Desert
Explanation:
Savannahs don't have cacti, and tundras tend to be snowy, cold places.
Help please brainliest involved
There were twelve elephants in the clearing.
Biology
Answer:
quantitative data
"quantitative" refers to the amount of something, so if it has something to do with numbers, It's quantitative.
There were twelve elephants in the clearing, which is quantitative data, while the pulse rate of 141 beats per minute is also quantitative data, but the orange fur with black stripes is qualitative data.
What quantitative and qualitative data are there?There are both types of data, such as the quantitative data, in which the quantity can be measured, such as the 12 elephants and the 141 beats, and the qualitative data, which can't be measured but is widely seen in the genetics, such as the coat color of the animals, the skin color of the human, etc.
Hence, there were twelve elephants in the clearing, which is quantitative data, while the pulse rate of 141 beats per minute is also quantitative data, but the orange fur with black stripes is qualitative data.
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The question is incomplete, the complete question is the below.
There were twelve elephants in the clearing.
a pulse rate of 141 beats per minute
orange fur with black stripes
✔
DONE
HELP ME ASAP! bbbbbb
Answer: I'm gonna say the answer is Mutualism.
A grass starts with 30,000 kJ of energy. How much energy would a cheetah acquire after it ate a zebra that consumed the grass?
30 kJ
300 kJ
3,000 kJ
30,000 kJ
Answer:
it is 300kj
Explanation:
The energy that will be acquired by the cheetah when it consumes the zebra is 30,000 kJ.
Law of conservation of energy
The law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another.
The energy of the grass will be transferred to the zebra when the zebra consumes the grass. Also the total energy of the zebra will be transferred to the cheetah when it consumes the zebra.
Thus, the energy that will be acquired by the cheetah when it consumes the zebra is 30,000 kJ.
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what did I do wrong?
what is the difference between elevation and altitude?
Which of the following correctly describes the effect of endocrine disrupters on humans?
a.
They destroy normal human hormones.
b.
They destroy cells that hormones would normally target.
c.
They prevent hormones from binding to the cells they target.
d.
They destroy endocrine glands that would normally release necessary hormones.
Answer: b
Explanation:
Which of the following is a natural process that can quickly put large amounts of gas and solid materials directly into the stratosphere?
A. an earthquake
B. a volcanic eruption
C. a landslide
D. a flood
As carbon moves throughout earths systems how are different parts of the biosphere(the part occupied by living things) affected?
Answer:
Carbon is an essential factor to the survival of living things.
Explanation:
It is produced as a waste by-product of metabolism in living organisms and combines with oxygen to be released as Carbon Dioxide (CO2).
Plants on the other hand require CO2 to process sunlight and nutrients into energy. They in return release oxygen which is required by animals to break down food.
Factories, businesses, people (as they generate electricity, transport people and goods, etc) release lots of carbon into the atmosphere it also combines with oxygen again to form C02.
The ocean and water bodies also serve as a collecting conduit of CO2, especially where the water temperature is relatively warm. When CO2 is captured by the ocean, it is used by some sea animals to make shells.
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Can some on please help me with this assignment
What is it called when certain species have evolved such intimate symbiotic
relationships that individuals of either species cannot survive without one another?
a. obligate
b. parasitic
c. mutualistic
d. facultative
Answer:
A. Obligate
Explanation:
An obligate relationship is one where both organisms are interdependent with one another in a way that one cannot survive without the other.
A parasitic relationship is where one organism benefits, and the other is harmed.
A mutualistic relationship is one where both organisms "work together," therefore benefiting one another.
A facultative relationship is where both species benefit off of one another, but are not fully dependent on one another to the point they cannot survive without their symbotic partner.
3. Asexual reproduction slows evolution...explain it.
When asexual organisms evolve, they typically do so very quickly after a sudden mutation and do not require multiple generations to accumulate adaptations as do sexually reproducing populations.