物理
运动学、受力分析、电学与方程推导。
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read the excerpt from \every man a king.\ (7) now, we have organized a …
B. Long’s use of pathos—sharing an emotionally appealing idea—establishes his purpose of educating his audience about the meaning of the Declaration of Independence.
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24 mark for review which of the following can be inferred from the diag…
B. The atoms form a bond with a bond length of 75 pm.
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describe three risks or disadvantages of nuclear power.
Radioactive waste disposal challenges. Risk of nuclear accidents (e.g., meltdowns). High initial construction costs.
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which are benefits of using nuclear power plants to generate electricit…
Nuclear power plants produce little to no greenhouse gas. Nuclear power plants produce a large amount of energy for a small mass of fuel.
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americium-241 undergoes fission to produce three neutrons per fission e…
Remove absorbent material mixed in with the sample. Compress the sample of americium - 241.
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uranium-235 undergoes fission to produce two neutrons per fission event…
Surround the sample with a defective material to prevent neutrons from escaping to the surroundings. Compress the uranium - 235 sample.
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if one neutron initiates a fission event that produces two neutrons in …
2 ### Second Sub - Question
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how many stars are in our solar system? ○ 0 ○ 1 ○ 2 ○ 8 ○ thousands ○ i…
B. 1
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how long did it take the water to reach 70 degrees celsius? time vs. te…
3.5 minutes
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one kilometer is equal to ______ meters. * ○ 10 ○ 100 ○ 1000 ○ 10,000 ○…
C. 1000 (Note: Assuming the options are labeled A to E with A being 10, B being 100, C being 1000, D being 10,000, E being I don't know. If the original option numbering is differ…
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2: mechanics sentences, direct quotations proof it proofread the follow…
### Proof It (Proofreading the Dialogue for Capitalization Errors) 1. "Hi, Dad," said Jack. "We learned about tsunamis today." (Capitalize "W" in "we" as it starts a new sentence …
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heating curve for h₂o given the heating curve of water, what is happeni…
the potential energy increases while the kinetic energy is constant (corresponding to the orange option: "the potential energy increases while the kinetic energy is constant")
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what is the half life of this isotope? 5 seconds 20 seconds 15 seconds …
D. 10 seconds (assuming the option labels are A. 5 seconds, B. 20 seconds, C. 15 seconds, D. 10 seconds)
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who is credited with the discovery of the electron? j.j. thomson niels …
A. J.J. Thomson
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why do we need more electricity every year? b wind and water are being …
C. People use more and more energy.
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piano task pianos and pipe organs contain keyboards, a portion of which…
The ratio of black keys to white keys is $5:7$.
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what must we do with oil and coal to make energy? b make electricity c …
C. burn them
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which of these sentences is an opinion? the sun is the best source of e…
B. The Sun is the best source of energy.
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convert 35°f to degrees celsius. if necessary, round your answer to the…
\( 1.7 \)
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multiple-choice question what did the unions try to convince the govern…
B. Better Wages & Hours
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multiple-choice question what did the unions try to convince the govern…
B. Better Wages & Hours (assuming the options are labeled A, B, C with A: Workmens Compensation, B: Better Wages & Hours, C: Universal Healthcare)
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how many total ford model ts were produced in its entirety? □ 15 billio…
D. 15 million
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what did the selective service act mean for the u.s. army? a. the army …
D. The army needed to train a large force quickly.
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in addition to helping the allies win the war, president wilson wanted …
C. Make it impossible for future world wars to begin.
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27 multiple choice 1 point patricia is pregnant with her first child an…
C. She should ensure she gets enough iron and calcium, because the fetus will compete with her for iron and calcium if her intake is insufficient.
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what factor changed woodrow wilsons opinion about entering world war i?…
A. Americans were angry German U - boats had killed U.S. citizens.
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montesquieu, the spirt of the law... nor is there liberty if the power …
Law (under Social Science)
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montesquieu, the spirt of the law ... nor is there liberty if the power…
The relevant subfield is Law (under Social Science), as the passage discusses the separation of judicial, legislative, and executive powers, a core legal - political concept.
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what was the main argument of plessy in plessy v. ferguson? a. the four…
A. The Fourteenth Amendment gave him the right to equal treatment on a train.
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an electric filter purifies air at the rate of 35 liters per minute and…
- For liters of air and water: \(35A + 25W>1000\) - For joules of energy: \(0.8A + 1.3W<170\)
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which of the following was an invention of thomas edisons? a. the airpl…
D. The phonograph
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part 4: in the lab (28 points) below are some results for different sol…
A bar graph with title "Average Monthly kWh Usage of Different Solar Panel Brands", X - axis labels (SunPower, LG Solar, Canadian Solar), Y - axis label "Average per Month (Kilowa…
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what did president grant help pass to prevent southerners from using fe…
C. The Enforcement Acts
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2) which of the following statements about exercise is true? exercise i…
The third option: Exercise can improve health, even if a person does not lose weight.
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which law offered 160 acres of land to anyone who could live on it for …
C. The Homestead Act of 1862
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3) what type of exercise is proven to improve mood, reduce anger, and r…
Yoga ### Question 4
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2) which of the following statements about exercise is true? exercise i…
The correct statement is: "Exercise can improve health, even if a person does not lose weight." (The option with this text, likely the third circular option in the image.)
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1) exercise or physical activity can reduce the risk of all the followi…
A. Type 1 diabetes
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which of the following was a response to events such as attacks on whit…
B. The passage of strict slave codes
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4) which dietary choices can contribute to the development of chronic d…
Excessive consumption of processed foods high in added sugars and unhealthy fats
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3) what was the focus of diet quality in the early 1900s? preventing ch…
Preventing specific nutrient and calorie deficiencies
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2) which nutrient is essential for heart health and brain function, and…
A. Omega - 3 fatty acids
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1) what is the primary focus of health promotion through diet? detectin…
Promoting healthy eating habits and lifestyle choices
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4) a lack of vitamin b12 is linked to all the following conditions exce…
Diabetes ### Sub - question 5 (Mineral Deficiency and Brain Oxygen Delivery)
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position (m) 0 5 10 15 20 time (s) 0 2 4 6 8 data table 1 time (s) | po…
For Data Table 1, velocity is \( \boldsymbol{0.4} \) m/s. For Data Table 2, velocity is \( \boldsymbol{2.5} \) m/s.
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which data table correctly describes the dot motion graph shown in the …
(The actual answer depends on the graph and table data. For example, if after analysis, it's Data Table 2, then) Data Table 2
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plate boundaries have intense geological activity that can damage waste…
The theory of plate tectonics proposes that the Earth's lithosphere is split into multiple tectonic plates. These plates, which rest on the semi - fluid asthenosphere, move slowly…
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17. geological processes can happen over long or short periods of time.…
- Long - term example: Mountain building (e.g., Himalayas formation due to tectonic plate collision). - Short - term example: Volcanic eruption (e.g., 1980 Mount St. Helens erupti…
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what type of model does the information below represent? mass vs volume…
A. Graphical Model
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which of these is a potential benefit of using a computer model of gas …
A. The model helps us visualize the movement of gas atoms.
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a teacher uses a computer simulation to show how gas particles move at …
A. A computer model
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which branch of stem (science, technology, engineering, and math) prima…
C. science (assuming the options are labeled as A. math, B. technology, C. science, D. engineering)
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10. how many troops did napoleon send to invade russia and how many ret…
C. Napoleon sent 420,000 troops, and only 10,000 returned to France. (assuming the options are labeled A, B, C, D with C being the third option as per the order: first option A, s…
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4. what started the peninsular war? * - napoleon’s invasion of russia -…
C. Napoleon's attempt to enforce the Continental System in Portugal ### Question 5
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8. how are the three types of rocks, igneous, sedimentary, and metamorp…
The three types of rocks are classified by their formation processes: Igneous rocks form from the cooling and solidification of magma (below Earth's surface) or lava (on Earth's s…
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the half-life of the radioactive element unobtanium-53 is 5 seconds. if…
- After 15 seconds: 10 grams. - After 20 seconds: 5 grams. - After 25 seconds: 2.5 grams.
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the half-life of the radioactive element unobtanium-53 is 5 seconds. if…
40
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40. which statement correctly distinguishes allotropes from isomers? 1 …
c. Allotropes are different forms of the same element; isomers are different compounds with the same molecular formula. ### Question 41
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by analyzing the data using computer programs, anna can locate objects …
Anna \boxed{analyzes} the data to identify any objects that have \boxed{colors not found in nature}. If the colors were \boxed{produced by synthetic dyes}, the objects are \boxed{…
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how long can it swing? | | height dropped from (centimeters) | time swu…
49 sec
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rolling a car down a ramp | | height (centimeters) | distance rolled (c…
10 cm
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rolling a car down a ramp height (centimeters) | distance rolled (centi…
27 cm (the option with "27 cm")
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how long can it swing? | | height dropped from (centimeters) | time swu…
25 sec
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question 25 of 25 if you do not have enough time to complete a full wor…
A. Cut the exercise portion short.
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question 23 of 25 a proper cool - down routine includes which of the fo…
D. Five to 10 minutes of slow walking or jogging and stretching.
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which of the following are part of the ten essentials list? a. sleeping…
A. Sleeping pad, C. Extra clothes and rain gear, D. Sunscreen and hat, E. First aid kit, F. Water purifier
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question 21 of 25 what is the correct definition for recovery heart rat…
B. Number of beats per minute the heart drops after exercise.
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question 20 of 25 which of the following is not a safety tip for outdoo…
D. Wear sandals instead of sturdy shoes for better traction.
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which of the following is not a benefit of anaerobic exercise? a. decre…
A. Decreased levels of cholesterol
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which of the following is not a benefit of outdoor exercise? a. exposur…
C. Increased cholesterol.
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when is the best time to take a resting heart rate? a. one hour after e…
B. Just after waking in the morning.
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an offensive action (in sports) is usually categorized as which of the …
D. A player trying to score points.
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question 11 of 25 which of the following are fire prevention guidelines…
A. If you smoke, never drop used tobacco products on the ground. B. Never park your car near long, dry grass or debris. C. Learn and follow the local rules about open fires, camp …
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when stretching, you should never: a. bounce the body. b. feel pain. c.…
D. All of the above.
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which of the following is not one of the rules of strength training? a.…
A. Always do even repetitions of each exercise.
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question 3 of 25 what does the acronym r.i.c.e. stand for? a. readiness…
C. Rest, Ice, Compression, Elevation.
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which of the following is a strength training option? a. weight machine…
D. All of the above
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question 5 of 25 respect for the environment means: a. only using resou…
C. Making as little impact as possible on wilderness areas.
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why is it important to wear loose-fitting clothing when exercising? a. …
C. Loose - fitting clothing allows for full range of motion and the evaporation of sweat.
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which of the following is not an early sign of hypothermia? a. uncontro…
A. Uncontrollable urge to fall asleep.
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which of the following are fire prevention guidelines? a. only use matc…
B. Never leave a fire unattended, D. Extinguish all fires and burning coals or embers with water or dirt
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which sport was started thousands of years ago as a primary means of tr…
D. Both A and B
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question 14 of 20 which of the following is not a safety guideline for …
B. Always wear flippers and a mask.
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which of the following is a safety precaution to take in order to avoid…
B. Stay away from food and water sources.
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which of the following is not a good way to stay motivated once p.e. en…
D. Set a strict schedule and don't allow any exceptions.
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which of the following sports has an extremely high death rate? a. base…
A. BASE jumping
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question 8 of 20 which of the following statements is true about cross …
A. It is one of the most complete aerobic exercises.
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though hiking is often considered an activity for the wilderness, many …
A. Urban
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which of the following is an aerobic outdoor sport? a. water skiing b. …
C. Orienteering
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which of the following are part of the ten essentials list? a. extra cl…
A. Extra clothes and rain gear, C. Sunscreen and hat, D. First aid kit, F. Water purifier
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which of the following is not a good way to stay hydrated during an out…
A. Drink sugary beverages.
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a science grant available to college juniors or seniors is the ______. …
C. SMART Grant
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question 1 of 3 what does it mean that kentucky is a primary enforcemen…
B. You can be pulled over and ticketed simply for not having a seat belt on.
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question 3 of 3 airbags are designed to protect us. when might an airba…
A. If you are not wearing a seat belt, your body will be moving around, and it will not be where the airbag is designed for it to be.
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question 2 of 3 what does it mean that kentucky is a primary enforcemen…
B. You can be pulled over and ticketed simply for not having a seat belt on.
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practice activity # 3 solve the following problem. show complete detail…
The total heat required is \(1138040\space\text{J}\) (or \(1138.04\space\text{kJ}\) or \(1.138\times 10^6\space\text{J}\))
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question 10 of 10 in the photoelectric effect, what happens when light …
A. Electrons are knocked off (from the metal, likely a typo instead of "stone") causing electricity to flow.
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question 9 of 10 the idea that light can act as packets led to what new…
A. Quantum mechanics
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question 8 of 10 what did rutherford observe that surprised him? a. all…
B. Some of the alpha particles shot at the gold foil bounced back.
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question 7 of 10 what did robert millikan discover? a. he determined an…
A. He determined an electron's charge.