Answer:
Mechanical advantage (also written as MA in formulas) is the factor by which a machine multiplies force. ... There is no unit for mechanical advantages since the unit for both input and output forces cancel out.
Why does the prime meridian pass through Greenwhich, England?
If a mineral has a parent to daughter ratio of 1:3 (one parent atom for every three daughter atoms), how many half-lives have passed since the mineral formed?
a. 0
b. 1
c. 2
d. 3
e. 4
Answer:
c. 2
Explanation:
Given that
Parent to daughter ratio = 1:3
Based on the above information, after considering the 1 half-life of radioactive isotope there is one-half of the real radioactive atoms of the parent left also the equivalent number of daughter atoms produced
Therefore after one half, the ratio between parent and daughter atom is 1:1
Now after the second half, half of the left parent atom would be transformed into the daughter cells
This remains a quarter of parent atom and 3 quarter of daughter atoms
So, the ratio of 1:3 would be shown after 2 half-lives
Scientist have been able to evaluate changes in ocean temperature profiles over more than 100 years by comparing modern instrument float records to data obtained during the:________
Answer:
HMS expedition challenger
Explanation:
The HMS expedition challenger was involved in ocean researches by scientists around 1870s. The research lasted about 1,000 days and the area covered was around 68,000 nautical miles. This research helped to shed more light on the activities going on in the marine environment.
Scientist evaluate changes in ocean temperature profiles over more than 100 years by comparing modern instrument float records to data obtained during the results gotten from the HMS expedition challenger.
You live in the northeast US, and over the course of a particular winter, you experienced frequent snow, poor weather, and well below normal temperatures. Your friend, who lives in the southwest US, experienced mostly fair weather and average (mild) temperatures through that same winter. Based on the discussion of mid-latitude cyclone formation in chapter 12, explain why this pattern of winter weather in each location would likely persist every winter. View keyboard shortcuts 12pt Paragraph
Answer:
otro tepdopr ayuard a
Explanation:
graas or ploasc untos
pi
Answer:
climate
Explanation:
If you are flying over a mountain and see sedimentary layers making an outline in the shape of an overturned cereal bowl, the feature would be called a(n)
Answer:
Dome
Explanation:
A dome is known as a structure with a curved shape like the shape of a half sphere and is also not perfectly round.
When flying over a mountain and see sedimentary layers making an outline in the shape of an overturned cereal bowl. The overturned cereal bowl seen assumes the shape of a dome in the explanation given above . This validates the outline being that of a dome.
After it experiences a "helium flash" a star like the Sun will have a brief period of stability, fusing helium into carbon (and sometimes oxygen). During this brief stable stage, the star:_________a. Increases tremendously in luminosity.b. Gets to be even larger in diameter than it was as a red giant.c. Returns to the position on the H-R diagram that the star had in its main-sequence stage.d. Is able to fuse many of the heaviest elements (such as iron and gold) in its superhot core.e. None of the answers provided is the correct answer
Answer:
a. Increases tremendously in luminosity
Explanation:
The helium flash is a thermal nuclear fusion with large quantities of helium gas into carbon. During the red giant phase, the sun is predicted to have a flash 1.2 billion after it leaves the main sequence and this helium fusion cannot be produced by the low mass stars. The sun in this stage will burn out or run out of its fuel and eventually will lead to gravitational collapse. The star being to shrink in size and core starts to collapse.Compare and contrast a perceptual region and a formal region
Answer:
A nation is a formal region; it is a particular political entity and may have a common language. ... Perceptual regions reflect people's feelings about certain areas; in the United States, southern California and the South each have a certain image. They are perceptual regions.
Based on the population density maps above, what can be inferred about Britain’s migration patterns? A. The population of Britain was greater in 1701 than in 1911. B. Britain was more densely populated in 1911 than in 1701. C. Fewer people lived in urban areas in 1911 than in 1701. D. The northern part of the island was more densely populated than the southern part in 1701.
Answer:
i think its A sorry if its wrong
Explanation:
In the United States, dry lines commonly develop over _____ during _____: Group of answer choices western Texas, Oklahoma, and Kansas; spring and early summer the Northeastern states; spring the desert Southwest; winter Southern California; early summer
Answer:
In the United States, dry lines commonly develop over southern Great Plains during mature cyclone.
The discontinuity separating the crust from the mantle is named as: A.Mohorovicic B.Conrad C.Reppetty D.Gutemberg
Answer:
A.mohorovic
Explanation:
The Mohorovičić discontinuity (/moʊhəˈroʊvɪtʃɪtʃ/ MOH-hə-ROH-vitch-itch, Croatian: [moxorôʋiːtʃitɕ]),[1] usually referred to as the Moho discontinuity or the Moho, is the boundary between the Earth's crust and the mantle. It is defined by the distinct change in velocity of seismological waves as they pass through changing densities of rock.[2]
The Moho lies almost entirely within the lithosphere.[3] Only beneath mid-ocean ridges does it define the lithosphere–asthenosphere boundary. The Mohorovičić discontinuity is 5 to 10 kilometres (3–6 mi) below the ocean floor, and 20 to 90 kilometres (10–60 mi) beneath typical continental crusts, with an average of 35 kilometres (22 mi).
Named after the pioneering Croatian seismologist Andrija Mohorovičić, the Moho separates both the oceanic crust and continental crust from underlying mantle. The Mohorovičić discontinuity was first identified in 1909 by Mohorovičić, when he observed that seismograms from shallow-focus earthquakes had two sets of P-waves and S-waves, one that followed a direct path near the Earth's surface and the other refracted by a high-velocity medium.[4]
A ____ tax is a tax levied on the removal of natural resources (especially oil and gas) from the earth.
Answer:
A severance tax.
Explanation:
If__________is added to the single cell model of global circulation, the single cell convection system becomes a three cell convection system.
Answer:
Thermal energy
Explanation:
The atmospheric circulation is a large system of movement of air along with the circulation of water and thermal energy is redistributed o the surface of the earth through this method. The three cells namely Hadley, Ferrel, and polar cells that exist in the northern and southern parts of the world are balanced by the high and low pressures. The latitudes of 30 to 35 degrees are the place of high pressure were they diverge form.Where else in the bay area or elsewhere do you think would be an important place to dedicate as a wildlife corridor? Explain why?
Answer:
Apart from the Gulf of Mexico area there are other areas that can be wildlife corridor. These could be:
Canadian forest - taigaAndean mountain area - there are many endemic and endangered species.Map of the United States shows a highlighted area encompassing much of the southwestern United States, particularly along the Rio Grande and Rockies.
Which weather event would most likely take place in the ecosystem highlighted on this map?
A. Blizzard, because the ecosystem is very cold and wet
B. Drought, because the ecosystem is very dry
C. Hurricane, because the ecosystem is near a coastline
D. Thunderstorm, because the ecosystem is humid and wet
Which of the following are types of thematic maps? Check all that apply
Answer:
the answer is
A: special-purpose maps
C: choropleth maps
D: dot-density map
Explanation:
The statement that describes the types of thematic maps includes:
A. Special-purpose mapsC. Choropleth mapsD. Dot-density mapWhat is a thematic maps?A thematic maps refers to class of map that are specifically themed for a particular geographic area.
Hence, the types of thematic maps in this context include Special-purpose maps, Choropleth maps and Dot-density map
Therefore, the Option A, C and D is correct.
Read more about thematic maps
brainly.com/question/26596817
Bioplastics made from corn grown using industrialized agricultural methods would have a smaller ecological footprint that bioplastics made from native prairie switchgrass.
A. True
B. False
Answer:
A this is true
Explanation:
i had to answer this question and i got it right
Bioplastics made from corn grown using industrialized agricultural methods would have a smaller ecological footprint that bioplastics made from native prairie switchgrass.
Thus, the correct option A.
What are Bioplastics?Plastics made from renewable biomass sources, such as plant fats and oils, maize starch, straw, woodchips, sawdust, and recovered food waste, are known as bioplastics.
Some bioplastics are made by processing polysaccharides (such as starch, cellulose, chitosan, and alginate) and proteins (such as soy protein, gluten, and gelatin) directly from natural biopolymers.
Other bioplastics are made chemically from sugar derivatives (such as lactic acid) and lipids (such as oils and fats) from either plants or animals, or biologically by fermentation of sugars or lipids.
Contrarily, conventional plastics like fossil-fuel plastics, often known as petro-based polymers, are made from natural gas or petroleum.
Bioplastics have the advantage of not requiring fossil fuel as a raw material, which is a limited and unevenly distributed resource with political and environmental implications.
Learn more about Bioplastics, here
https://brainly.com/question/17285813
#SPJ5
Which statements refer to weather and which refer to climate.
a. The baseball game was rained out today.
b. January is Omaha's coldest month.
c. North Africa is a desert.
d. The high this afternoon was 25°C.
e. Last evening a tornado ripped through central Oklahoma.
f. I am moving to southern Arizona because it is warm and sunny.
g. Thursday's low of -20°C is the coldest temperature ever recorded for that city.
h. It is partly cloudy.
Answer:
a. weather
b. climate
c. climate
d. weather
e. weather
f. climate AND weather
g. climate AND weather
h. weather
Which of the following gulfs are in Southeast Asia? A. the Gulf of Aden and the Gulf of Bahrain B. the Gulf of Mexico and the Gulf of California C. the Gulf of Thailand and the Gulf of Tonkin D. the Gulf of Suez and the Gulf of Oman
Answer:
Which of the following gulfs are in Southeast Asia?
C. the Gulf of Thailand and the Gulf of Tonkin
Answer:
I do agree, and think it's C. The Gulf of Thailand and the Gulf of Tonkin
What character motivation advances the plot?
This motivation moves the rising action toward what
Event?
Answer:
1 the vizir's envy
2 the Kong rebuking the vizir
Explanation:
Answer:
1. The vizirs envy
2. The King rebuking the vizir
Explanation:
I just did it on edge.
On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the oldest unit in the center, the underlying structure is a(n) ________.
Answer:
On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the oldest unit in the center, the underlying structure is a syncline.
According to the lecture, the urban environment/landscape of Megalopolis includes all of the following EXCEPT:________
A. A growth pattern that followed transportation corridors
B. Little variation in land use
C. Cultural institutions
D. Most of the construction of beltways and parkways took place after World War II
E. Places that import what they lack from places that have a surplus
Answer:
B. Little variation in land use
Explanation:
Megalopolis is defined as a combination of two or more urban cities. This was formed as a result of a large increase in developing urban regions of the country and is characterized by a large growth pattern. It has a high variation in the land use.
It also has growth pattern that followed transportation corridors, cultural institutions, a majority of the construction of beltways and parkways took place after World War II and places that import what they lack from places that have a surplus.
Understanding how to recognize landslides and other styles of mass wasting is important for homeowners! An earthflow is best described as:
a. The movement of soil downslope along a planar surface of rupture
b. A non-cohesive soil flow made up of sand to boulder sized sediments that is triggered by intense rainfall or rapid snow melt
c. A cohesive soil flow made up of mostly fine grained sediments (e.g., silt, clay and sand) that is triggered by intense rainfall or rapid snow melt
d. A landslide induced by the liquefaction of sediment during an earthquake
e. a mass of rock dislodged from a steep slope that free falls, bounces or rolls downslope
f. The gradual movement of soil downslope over the course of years or even centuries
g. The rotational movement of soil downslope along a rotational surface of rupture
Answer:
b. A non-cohesive soil flow made up of sand to boulder sized sediments that is triggered by intense rainfall or rapid snow melt
Explanation:
Earth flow is characterized by fine grained particles which are usually in a downwards motion as a result of the impact of the forces of gravity and water sweeping through it.
It is also known as a non-cohesive soil flow made up of sand to boulder sized sediments that is triggered by intense rainfall or rapid snow melt.
zeugen and yardang differences
Answer:
Yardangs are formed on vertical strata while zeugen on horizontal strata. ... Yardangs are formed on vertical hard/soft layers of rock, while zeugen (this is its plural form) are formed on horizontal bands of hard/soft rocks giving it a more mushroom-like shape. The Great Sphinx of Giza has been sculpted in a yardang
Based on these observations, we can conclude that the mountains in Shenandoah National Park have undergone __________ erosion and are __________ the Rocky Mountains.
Answer:
The answer is A) more, older than.
Explanation:
It says that the rocky mountains are older and that Shenandoah National Park have undergone more erosion in the passage.
What is latitude and what is longitude *a simplified definition of both*
Answer:
Latitude is the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes. (left to right)
longitude is the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes.(up and down)
Explanation:
What type of rock is most likely to form in an earthquake zone?
A. Extrusive igneous rock
B. Sedimentary rock
C. Metamorphic rock
D. Intrusive igneous rock
Answer:
C. metamorphic rock
Explanation:
Although metamorphic rocks typically form deep in the planet's crust, they are often exposed on the surface of the Earth. This happens due to geologic uplift and the erosion of the rock and soil above them. At the surface, metamorphic rocks will be exposed to weathering processes and may break down into sediment. hope this helps you :)
The Milankovitch cycles describe the change in ________ because of changes in the ________ of Earth relative to the Sun.
Answer:
The Milankovitch cycles describe the change in eccentricity because of changes in the orientation of Earth relative to the Sun.
The Milankovitch cycles are those cycle that is described as the collective changes in the climate over thousands of years. Factors like axial tilt, eccentricity, precession index are some of the hypothesized variations.
Thus the cycle describes the changes in the way the earth orbits the sun. Due to the changes in the orbit of the earth related to the sun. Or the differential orbital position of the un in relation to the inclination. Natural global arming and cooling is considered to be initiated by these cycles.Learn more about the Milankovitch cycles describe.
brainly.com/question/4338015.
If you were to climb to the top of the highest peak in the Himalayas and look northeast, which of these physical features would you looking at?
Tibetan Plateau
hope this is it
Here’s a still more precise rendering, this time of emissions irrespective of national boundaries. In the U.S., India, and China, areas of heavy emissions correspond to areas of dense 11. p______. In the case of Germany, you can make out the valley of the Rhine River, the industrial heart of Europe.
Answer:
Population.
Explanation:
U.S., India, and China, are the areas of heavy emissions of carbondioxide gas due to areas of dense population. These three countries have about half of the world population i. e. approx. 3 billions of people so vehicles and industries are high in number which releases the greenhouse gases such as carbondioxide and carbonmonoxide while heavy emissions of carbondioxide gas occurs from Germany because there is huge number of industries are there so that's why it is called the industrial heart of Europe.
Because computers and cell phones are non-polluting, global carbon emissions from communications technologies are expected remain relatively stable between now and 2020.
a. True
b. False
Answer:
False
Explanation:
I don't know what your text book says, but computers and cell phones are absolutely polluting. All the emissions from the manufacturing process get released into the atmosphere, and they run on electricity which is being produced at sometype of power plant (probably coal).
Since we don't know the "now" of the text book, but we do know 2020, we know that there was a sharp increase in 2018 that started to level off in 2020 from e-waste. It's estimated there are 3 electronic devices for every 1 person in the world.
For these reasons, I would have to say False as the answer; however, your textbook may disagree. The benefits of future knowledge.
Cheers.
