Physics
Kinematics, force analysis, electricity, and equation-driven reasoning.
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momentum, collisions problem - solving two novice skaters are on the ic…
Their resulting velocity is approximately \(2.6\space m/s\) at an angle of \(58^{\circ}\) north of east.
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what is the value of the test statistic? z = 0.84 (round to 2 decimal p…
The test statistic $z=\boldsymbol{0.84}$ (rounded to two decimal places). The graph with symmetric shaded regions in both tails (the second graph from the left) represents the cor…
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9 qui suis - je? 14 a) mer dans laquelle se jette le nil. b) endroit où…
## Question 9 a) Mer Méditerranée b) Delta c) Plaine d) Désertique (ou aride) ## Question 10 a) V b) V c) F d) F ## Question 11 a) bidonvilles b) villes satellites c) mosquées d) …
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the height of an arrow shot upward can be given by the formula ( s = v_…
The arrow is at a height of 48 ft after approximately 0.55 s and 5.45 s.
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a solid billiard ball with a mass of 230g and a radius of 4.00 cm is ro…
The distance up the incline is approximately \(\boxed{0.373\ m}\) (or more precisely, let's recalculate with exact steps: Wait, wait, I think I messed up the formula in step 2. Wa…
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dad is pushing his son on the merry - go - round in the park. the merry…
\(\approx1.12\space m/s\) (or more precisely, after re - calculating, if we use more decimal places: \(\alpha=\frac{55\times1.2}{\frac{1}{2}\times160\times1.2^{2}+35\times0.5^{2}}…
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four 0.2 kg masses are held together by light rods in the shape of a sq…
0.03872 \( kg\cdot m^2 \)
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four 0.2 kg masses are held together by light rods in the shape of a sq…
\( 0.02904 \) \( kg\cdot m^2 \)
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1. review the powerpoint titled simple machines and energy transfer. co…
the ability to do work
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in the discussion question for lesson 12, makeshift scale, we considere…
- \(X_2\approx26.1\) cm, \(X_4\approx4.0\) cm (approximate), \(m_{cow}=70.4\) g, \(m_{pig}=25\) g (total mass \(158.4\) g, slightly over 150 g). (Note: Values may vary slightly ba…
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using dialogue to understand characterization as you read the passage, …
He is very upset.
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a weight lifter passes out in the gym and is taken to the local hospita…
C. a muscle - building supplement like anabolic steroids
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computer ownership households with a computer by region according to th…
Asia; increasing
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which of the following is not a type of synovial joint in the human bod…
B. stirrup
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if two runners take the same amount of time to run a mile, they have th…
D. velocity
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a spotter stands near the lifter with his feet wide and hands near the …
C. a squat
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if youre not satisfied with your fitness evaluation score, theres reall…
F
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number of mobile - phone subscriptions worldwide (2009 - 2018) global p…
The number of mobile subscriptions has doubled since 2009. The number of mobile subscriptions is greater than the number of people in the global population.
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how can flexibility training reduce the risk of back pain? a it can hel…
B. It can help improve the poor posture responsible for back pain.
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number of mobile - phone subscriptions worldwide (2009 - 2018) global p…
doubled
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which of the following is a component of skill - related fitness? a. mu…
D. power
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read the excerpt from \sinners in the hands of an angry god.\ we find i…
throw with force
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11. in louisiana, the _ is part of _ which means judges follow written …
First blank: civil law system; Second blank: statutory law (or the legal system based on written codes) ### Question 12
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1. the enforcement of a \mandatory-retirement policy\ (source ii) is su…
D. equality rights ### Question 2
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how many exercises encompass stretching in the human body? a eight b to…
C. that depends one each individual
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which of the following best defines muscles? a. long flexible tendons t…
B. tough strong tissues that provide energy to perform physical activities
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a persons energy efficiency can be partially determined by heredity. pl…
T
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stiff muscles only result from overworking them. please select the best…
F
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which of the following best describes varicose veins? a. veins cannot p…
B. Veins lose the ability to prevent the backflow of blood.
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which statement best describes the process of playing sports? a no pain…
C. You should understand the risks of each sport and listen to your body.
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making good lifestyle choices will result in a healthier life. please s…
T
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which statements describe the effects of indoor pollution? select two o…
Ultrafine particles cause poor health; Ultrafine particles are absorbed by the lungs when people breathe.
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use the graph to answer the following questions. which state has the hi…
- Which state has the highest level of air pollution particles for the year 2014? Virginia - Which state shows the least change in air pollution particles from 2006 to 2015? Wyomi…
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amount of air pollution particles by state use the graph to answer the …
- The state with the highest level of air - pollution particles in 2014: Wyoming - The state with the least change in air - pollution particles from 2006 to 2015: Maryland - An ac…
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how does the jungle setting affect mowglis experiences and challenges? …
B. It forces him to learn animal laws and survival skills.
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check each statement that applies to the atmosphere as a natural resour…
- The atmosphere interacts with the hydrosphere to redistribute water over the surface of Earth. - The atmosphere interacts with several Earth spheres, including the lithosphere. …
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in chapter 1, how does the setting of the wolfs cave and the surroundin…
A. The cave provides a safe and nurturing environment for their own cubs, which motivates Mother Wolf to extend that protection to the man-cub. B. The "Law of the Jungle" forbids …
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identifying the central idea: the rubric requires the \central idea\ to…
Artificial intelligence is not something that can be taken lightly, that is why there should be many precautions and considerations that should be made, including: safety, AI limi…
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the magnitude and direction of two forces acting on an object are 120 p…
169.95
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excerpt from \the wife\ by washington irving adapted for educational pu…
Leslie believes the bad news about their financial situation will cause Mary emotional pain (as the metaphor "strike her very soul to the earth" implies emotional impact, not phys…
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q.4. 100g of ethanol at 25°c is heated until it reaches 50°c. how much …
\(6.1\times 10^{3}\space J\)
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q.3 30.0kj of heat is transferred to a 1.00 kg block of aluminum initia…
\(43.0^{\circ}C\)
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fill in the blank. a quantity that has magnitude but no direction is ca…
scalar.
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positive and negative connotation #1 some words have similar meanings b…
1. curious 2. energetic 3. smiled 4. scent 5. youthful 6. debating 7. quirky 8. antique 9. proudly 10. determined 11. thrifty 12. daring 13. selective 14. challenging 15. filled 1…
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question 1 to ____ light, you can place a large framed screen of mesh o…
B. block
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the distance covered by an aerial photograph is determined by both the …
1800 (rounded to nearest hundred)
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term and compensation 4. maximum term length 5. salary 6. benefits matc…
7. C 8. e 9. h 10. g 11. b 12. f 13. a 14. d 15. Vice President 16. Speaker of the House 17. President pro tempore of the Senate 18. Secretary of State 19. Secretary of the Treasu…
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kinetic energy is calculated using the formula $ke = \\frac{1}{2}mv^{2}…
m=2kg, v=30m/s → (No matching option shown); m=0.4kg, v=2m/s → KE=0.8J; m=20kg, v=25m/s → KE=6250J; m=1.1kg, v=1.1m/s → KE=0.66J; m=0.7kg, v=3.1m/s → KE=3.3J
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compare and contrast kinetic and potential energy using the venn diagra…
- Kinetic Energy only: Energy of motion; depends on velocity - Both: Forms of mechanical energy; measured in joules; convertible between each other - Potential Energy only: Stored…
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which blood type could be given as a transfusion for patient with ab bl…
AB -
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a characteristic of the open - loop system is that it does not use feed…
(Note: The image's option D text is unclear, but based on standard closed-loop vs open-loop questions, the answer is typically the open-loop system. If D is an open-loop example l…
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a commercial greenhouse is heated through solar panels. analyze this sy…
D. It is an open system because it exchanges energy and matter with its surroundings.
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part b what is the basic difference between a nuclear fission reaction …
A. Fusion is a synthesis reaction while fission is a decomposition reaction.
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a researcher measures 200 counts per minute coming from a radioactive s…
A. 3.125%
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3. how much heat is needed to freeze 75.0 g of water that is at 33.0°c?…
The total heat needed is approximately \( \boldsymbol{35400 \, \text{J}} \) (or 35405 J).
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the great pacific garbage patch is an area in the north pacific ocean t…
4. There is a relationship among all living things on Earth
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which is a possible consequence of decreasing air quality resulting fro…
D. decrease in population due to health threats
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which effect is one likely result of a forest fire? ○ extinction ○ adap…
A. extinction
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why is sustainable use of natural resources important? ○ to ensure that…
A. to ensure that natural resources are available for future generations
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which is a negative effect of rising ocean temperatures? the drying out…
the drying out of fertile land and the formation of dust bowls
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which greenhouse gas has an average lifetime in the atmosphere of a few…
carbon dioxide
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which is a possible result of rising ocean temperatures caused by globa…
B. increase in strength of hurricanes
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which definition best describes global warming? ○ a long - term change …
B. a long - term increase in the Earth's average temperature
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why is it commonly believed that carbon dioxide is responsible for glob…
B. Carbon dioxide has a longer average lifetime in the atmosphere.
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i address you, the members of the seventy - seventh congress, at a mome…
C. Urgency that America must do something or risk being attacked
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according to some scientists, which is a cause of global warming? incre…
O increase in carbon dioxide
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which statement explains why many scientists believe that carbon dioxid…
C. Carbon dioxide has increased as a result of increased human activities
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what moves toward the east during el niño? warm water cold water slow c…
A. warm water
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which statement best describes the greenhouse effect? it is a process b…
The option "It is a process by which greenhouse gases allow the sun's light to penetrate the atmosphere but stop the heat from escaping." (the third option in the list)
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what climate condition occurs during el niño? ○ dry heat throughout nor…
The correct option is: heavy rain moving toward the coast of South America (the third option in the list, assuming the options are ordered as: 1. dry heat throughout North America…
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what major factors play a role in global warming? ○ decrease in human a…
natural factors and human activity
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which is an important question to consider when creating an environment…
C. Is the benefit worth the cost? (assuming the options are labeled A - D in order, with “Is the benefit worth the cost?” as option C)
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which term refers to the process by which land is worn away by natural …
A. erosion
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which activity is a method of habitat restoration? cleaning up after en…
allowing trees to grow naturally
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which statement provides the best argument against making major changes…
C. Making major changes to the atmosphere can be a costly process. (Note: Assuming the options are labeled A - D with Option 3 as C; adjust label if original numbering differs, bu…
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which correctly lists three main causes of deforestation? air pollution…
B. mining, cattle ranching, logging (assuming the second option is labeled B; if the original options had labels like A, B, C, D with the second option as B, then the answer is B.…
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which is a negative effect of deforestation on the environment? o habit…
C. desertification (assuming the options are labeled A: habitat restoration, B: soil production, C: desertification, D: urbanization)
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which statement provides the best argument in favor of deforestation? d…
D. Deforestation opens up land for mining and cattle ranching.
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what process leads to deforestation and increased erosion? mining refor…
A. mining
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a student environmental group is creating a campaign for locally source…
a farmer who installed solar panels on the roof of their barn
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which statement describes renewable resources? ○ fossil fuels are a typ…
Renewable resources replenish quickly.
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which scenario describes a nonrenewable resource being used for energy?…
B. A steak is cooked over a charcoal fire
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a homeowner wants to reduce the environmental damage of the energy sour…
wind (the option with "wind" as the text)
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which statement describes a disadvantage of nonrenewable resources? it …
C. They are expensive to collect and transform into energy. (Note: Assuming the options are labeled as A, B, C, D with A being "It is hard to collect large quantities of them at a…
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the image shows two natural resources: sunlight and trees. trees provid…
The correct option is: Timber and sunlight are renewable resources (the option with this text, likely the second option in the list, e.g., if the options are ordered as given, it …
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how does fresh water differ from coal as a resource? coal replenishes q…
D. Fresh water is a renewable resource, while coal is a nonrenewable resource. (Note: Assuming the last option is D as per the order of options. If the options are labeled differe…
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a construction company is building a house. after a truck delivers the …
the diesel fuel in the delivery truck
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which resource is a renewable resource? trees metal gemstones coal
trees (the option corresponding to "trees" among the given options: coal, gemstones, metal, trees)
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volcanic water air land which type of pollution includes cfcs and smog?
air (the option corresponding to air pollution, as CFCs and smog are air pollutants)
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which is a nonrenewable resource? coal wood fish soil
coal (the option corresponding to coal, e.g., if coal is the fourth option, it would be: D. coal. But based on the given layout, the option for coal is the last one among the four…
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which is a renewable resource? coal iron wood petroleum
The option with wood (the circle next to "wood") is the renewable resource. So the answer is the option labeled "wood".
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why are invasive species dangerous to the environment? they pollute the…
They threaten biodiversity.
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which gases contribute to the greenhouse effect? nitrogen and helium ca…
B. carbon dioxide and methane (assuming the second option is labeled B, if the original options had labels like A, B, C, D with the second option being B. If the original options …
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scientists predict that we will eventually use up all available fossil …
C. natural gas, coal, and oil (assuming the third option is labeled C; if the original labels were different, adjust the identifier, e.g., if the third option was B, then B. natur…
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which results from an increase in the greenhouse effect? continental sh…
global warming (the option corresponding to "global warming")
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which is a consequence of global warming? rising sea levels less freque…
rising sea levels
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what are sustainable use practices? any materials that exist in nature …
B. the managed consumption of natural resources to prevent their depletion or environmental destruction
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a new highly nutritious crop is going to be planted in an area where it…
C. negative as it threatens local biodiversity
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which is one event that may lead to primary succession? clear - cutting…
C. volcanic eruption
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according to the pie chart, which cause results in the most extinctions…
Introduced Species (with 39% of extinctions)