物理
运动学、受力分析、电学与方程推导。
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a sample of iron ore with a volume of approximately 250 cubic centimete…
A. \(4.0\ g/cm^{3}\)
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question 3 of 10 which statement describes a major effect of world war …
D. It lost control of many former Ottoman territories, but established an independent republic.
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question 13 (1 point) read the lines below from chapter 2. his acquaint…
c. arrogance
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question 41 points 2 choose the correct answer. changing the text in an…
editing
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natural disaster violent conflict demographic changes causes food insec…
To solve this matching problem, we analyze each description and match it to the correct category: ### Step 1: Match the first description The first description is about a devastat…
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natural disaster violent conflict demographic changes causes food insec…
1. The first box (Causes food insecurity...earthquake) matches with natural disaster. 2. The second box (Causes a lack of jobs...find work) matches with demographic changes. 3. Th…
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question 41 points 2 choose the correct answer. changing the text in an…
editing
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the venn diagram compares protons with electrons. which shared property…
Is electrically charged
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where are most research labs located? universities private companies go…
universities
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review the cartogram. which conclusion does the cartogram support? popu…
B. More people live in Africa and Asia than in Europe and the Americas.
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overpopulation and poor infrastructure led to backed - up sewers and bl…
- Malagrotta, Italy, suffered air and water contamination and soil pollution. : Trash from a larger city nearby overflowed its landfills. - Dhaka, Bangladesh, experienced floods a…
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match each city with the development that spurred population growth to …
- availability of a coal mine : Tete, Mozambique - invention of computer chip : San Jose, California
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question 13 1 pts the force needed to change the motion of an object ro…
less than
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question 32 which of the following procedures would increase the amount…
Question 32: Add more coils of wire Question 33: Spin the magnet around inside a coil of wire
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which of the following is true about the relationship between electrici…
- First question: Electricity can be used to create a magnet. - Second question: The magnet will become stronger.
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what kind of degrees are required to be a resource scientist? only a do…
4 - year, master's, and/or doctoral degrees
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what does an environmental resource scientist study? astronomy strictly…
what happens to the planet
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irrigation canals, wells, and basins dikes, levees, piles, and other fl…
To solve this matching problem, we analyze each environmental condition and match it with the appropriate human adaptation: ### 1. Dry climate conditions and/or scarce freshwater …
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question 29 1 pts which of the following is a device in which magnetism…
electromagnet
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question 28 what will occur when a magnet spins within a coll of wire? …
Electricity will be produced
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question 27 which of these statements describes how an electric motor w…
Electricity creates a magnet that causes other parts of the motor to move
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how do geographers calculate population density to understand human set…
The correct option is: They determine how many people live in a certain unit of area.
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a piece of reflective writing __________. improves writing skills facil…
facilitates emotional growth
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what will happen if two positively charged objects are pushed toward ea…
For the first question: They will repel each other. For the second question: electrons moving from your hand to the doorknob.
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people have used new forms of technology to solve problems and make are…
- "lack of traditional methods to generate electricity" - geothermal energy - "earthquake activity" - seismic dampers - "locations separated by water" - bridges - "arid conditions…
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question 23 an electric spark ____________. results whenever electricit…
Question 23: is an electrical charge suddenly released through the air Question 24: negative and positive
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how will the temperature of the sun change when it grows to the red gia…
cooler
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when two objects that do not easily conduct electricity rub against eac…
For the first question: static charge. For the second question: The balloon and your shirt develop opposite charges and are attracted to each other.
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how did the development of agriculture impact human settlement patterns…
It allowed humans to establish permanent settlements.
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a geographer studying how people are spread across the island of madaga…
population distribution
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where is our sun on the star spectral graph? main sequence red giants w…
main sequence
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using the fe 26 game to model nuclear fusion in a star work with a part…
s (Sample, as actual values depend on game play): - **a)** Number of fusion events: Low (e.g., 10 - 15 events if each arrow press is a fusion event), Elements created: Helium, Lit…
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if a force acts constantly on a stationary object, the object will ____…
accelerate in the direction of the force; They will attract each other
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question 17 a change in position of an object is its motion acceleratio…
Question 17: motion Question 18: no net force is acting on it
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which type of stars are the brightest? orange blue yellow red rewatch
B. blue
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equilibrium: a state of balance where opposing forces, influences, or r…
La fuerza de gravedad es importante en el proceso de fusión nuclear en una estrella.
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the speed and direction of an objects motion is its momentum inertia ve…
- First question: velocity - Second question: on her left
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jules is conducting an experiment involving friction. he is measuring t…
1. Correct Prediction 2. Incorrect Prediction 3. Incorrect Prediction 4. Correct Prediction 5. Incorrect Prediction
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why do more massive stars change and die faster? as you remember from t…
Gravity ### Question 2a (Trial 1)
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identify the two modes that most of earths elevations cluster around. t…
The two modes are around -4 km (oceanic crust) and +1 km (continental crust).
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what type of friction acts on a parachute falling to the ground? rollin…
fluid
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question 9 1 pts when an object rolls over a surface, what type of forc…
C. rolling friction
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question 8 how would a rockets path affect the path of a small comet? t…
The comet would not be affected.
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the gravitational attraction between two objects depends on the distanc…
First question: masses. Second question: away from each other.
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question 5 1 pts when the apollo astronauts went to the moon, they weig…
the moon’s mass is less than the Earth’s mass
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the graph represents the change in gravitational attraction between two…
Gravitational attraction decreases as the objects get farther apart
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which forest biome is home to conifer trees, the tallest trees in the w…
coniferous forest
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which factor produced most of the oxygen that is found in the atmospher…
living organisms
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which gas in the atmosphere protects living things from ultraviolet lig…
ozone
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which layers of the atmosphere were most influenced by the transition f…
troposphere and stratosphere
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what is the process where rocks, gas, and dust collided to form the pla…
accretion
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which allowed akbar to govern the many people of the mughal empire? rel…
religious tolerance and inclusion
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what innovative concept did the tang dynasty introduce in its military …
conscripted armies with voluntary soldiers
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an olympic runner completes the 200 - meter sprint in 23 seconds. what …
C. 8.7 m/s
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24. 20. what is the recommendation in ounces of grains that should be c…
c. 6
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23. 19. a benefit of eating breakfast is? a. improved concentration b. …
d. All of the above
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22. 18. food high in fiber include all of the following except? a. bean…
d. steak
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21. 17. which nutrient contains more than double the calories of any of…
a. fats
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how were the conflicts between homesteaders and indigenous people resol…
B. The American government forced Indigenous People to leave the land.
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20. 16. what is the recommendation in cups of low - fat or fat - free m…
c. 3
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terrestrial biomes bison on the pine ridge reservation near buffalo gap…
savannas are warm all year while temperate grasslands have a very cold winter season
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19. 15. the intake of which nutrient should be monitored because of its…
b. sodium
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18. 14. the percent daily values on a food label are based on a diet of…
c. 2000
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17. 13. how much sodium should you eat each day? a. 1200 mg b. less tha…
b. Less than 2300 mg
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levers quick check a lever with an effort arm of 10 meters and a load a…
100 N (the option is 100 N, so the correct answer is the option with 100 N, which is the last option: 100 N)
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16. 12. you should eat the fewest daily servings of? a. oils and sugars…
a. oils and sugars
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15. 11. dietary fiber consists of? (1 point) * q a. amino acids b. trig…
d. plant substances that are difficult or impossible to digest
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14. 10. complete protein sources? (1 point) * a. increase cholesterol l…
d. supply all essential amino acids
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13. 9. which nutrient does not supply the body with energy? a. vitamins…
a. vitamins
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12. 8. simple carbohydrates should be no more than ___ percent of daily…
b. 10
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11. 7. fats that are usually solid at room temperature are? a. saturate…
a. saturated fats
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10. 6. how many calories per gram of protein/carbohydrates? a. 4 b. 7 c…
a. 4
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jupiter is much more massive than earth. what would happen to an astron…
The astronaut would weigh more on Jupiter than on Earth.
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look at the picture to answer the question. a stone is attached to a sp…
Earth's gravity pulls the stone downward.
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a rocket approaching a planet is affected by the planets gravity. ident…
C. The rocket will be attracted to the planet
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5. 1. a benefit of healthy eating is? (1 point) * b. promotes optimal g…
b. Promotes optimal growth and development of children
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1. what do you call this in spanish? x-rayos foto de rayos radiografía
C. Radiografía
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calculate the frequency of each wavelength of electromagnetic radiation…
To calculate the frequency of electromagnetic radiation, we use the formula \( c = \lambda u \), where \( c \) is the speed of light (\( c = 3.00 \times 10^8 \, \text{m/s} \)), \(…
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compute the weight of a cedar post that has a base area of 20.60 square…
27.1 lb
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read the excerpt from hidden figures. \why cant i go to the editorial m…
She includes a minor detail.
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there are four types of physical hazards. which of the following is one…
Extreme Temperature
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an operator is working at an open site that has other loud machinery be…
Noise
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zaks bmi is 24, yolandas is 27, and wendys is 33. which individual is o…
Only Wendy is obese.
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which statements best describe displacement? check all that apply. disp…
- Displacement is a measurement that includes direction. - Displacement is the difference between a starting point and an ending point. - Displacement is measured as a straight li…
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which best describes the purpose of the rhetorical questions kennedy as…
They are an appeal to audience members' sense of right and wrong.
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there are four types of physical hazards. which of the following is one…
Vibration
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read the excerpt from \keynote address.\ i believe the real reason we a…
He creates an appeal to logic by explaining the reasons he has faith in the future of the country.
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there are four types of physical hazards. which of the following is one…
Radiation
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which of the following machine parts always require guards? select the …
Fan blades, Rotating barrels, Abrasive wheel machinery
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read the first paragraph of \among free men\ this is a time of shame an…
The phrases "shame and sorrow" and "mindless menace of violence" are examples of alliteration, creating an appeal to emotion.
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an excavation for a building foundation is 60.0 feet long, 35.0 feet wi…
29400 cu ft (the option with "29400 cu ft" as the volume in cubic feet, before converting to cubic yards; if the question intended cubic feet, this is the answer. If cubic yards w…
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2. surveys evaluated by the iucn for their red list classifications in …
C. endangered / vulnerable
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read the excerpt from \keynote address.\ now let us not deceive ourselv…
He appeals to logic by showing how bad attitudes lead to dangerous actions.
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the tendency to wear heavier clothes when it is cold and lighter clothe…
homeostasis.
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what is the most common injury caused by working with machines unsafely…
Amputation
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read the excerpt from \keynote address.\ i believe the real reason we a…
He creates an appeal to logic by explaining the reasons he has faith in the future of the country.
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read the excerpt from \keynote address.\ at a time when guns are still …
logic
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read the first paragraph of \among free men.\ this is a time of shame a…
The phrases "shame and sorrow" and "mindless menace of violence" are examples of alliteration, creating an appeal to emotion.
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cathy went through gastric bypass surgery for her severe obesity. this …
ghrelin.
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which best describes the purpose of the rhetorical questions kennedy as…
They are an appeal to audience members' sense of right and wrong.