物理
运动学、受力分析、电学与方程推导。
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what was the most likely motivation for iraqis to set fire to oil wells…
They wanted revenge when they were forced to retreat from Kuwait.
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a. most people respond similarly to unexpected threats. b. it is unwise…
Part A: C. Many people enjoy the intense emotions caused by a scary situation. Part B: C. A hormone called epinephrine (which you probably know as adrenaline) is released to trigg…
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multiple choice 1 point which statement best describes the impact of pr…
7. It demonstrated the power of the federal government to enforce its policies. 8. Fewer voters supported Adams because they felt that he had overextended his power.
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give the correct number of significant figures in the following measure…
1. 3 2. 2 3. 2 4. 2 5. 3 6. 4 7. 4 8. 3 9. 4 10. 4 11. 5 12. 4 13. 3 14. 3 15. 5 16. 2 17. 6.7895 18. 7.00 19. 10.325 20. 3.67591 21. 1770 22. 23.457 23. 0.0000873 24. 0.036785 25…
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close read: analyze the text identify the choice that best answers the …
A. Most people respond similarly to unexpected threats. B. It is unwise to attempt to force someone to go to a haunted house. C. Many people enjoy the intense emotions caused by a…
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5 multiple choice 1 point the whiskey rebellion was significant in u.s.…
5. the federal government used force to enforce the laws of the land. 6. establishing a Cabinet of department heads to advise the President
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section 24.3 continued heat produced by nuclear fission is carried away…
31. False 32. False 33. True 34. True 35. True 36. True 37. False 38. False 39. True 40. False 41. True
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section 24.3 continued in your textbook, read about the process of by w…
(18) Fuel rods (19) C (20) Control rods (21) F (22) A (23) Containment Structure
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part v. express the following in standard (decimal) form. 54. 2.4 x 10³…
54. \(2400\) m 55. \(0.000036\) moles 56. \(0.000000301\) g 57. \(0.0082\) g
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18 after careful analysis, an electromagnetic wave is found to have a f…
\(3.00\times 10^{8}\frac{m}{s}\)
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17 which of the following is the same thing as a hertz (hz)? * (0.5 poi…
$\frac{1}{s}$
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16 calculate the energy possessed by a single photon whose frequency is…
$6.96\times 10^{-18}\ J$ (corresponding to the last option)
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15 use the table to determine the color of light whose frequency is 5.0…
orange
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first read: comprehension identify the choice that best answers the que…
B. to help our bodies either combat or escape the perceived danger
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why did the friends have to cross out omars idea of making robots? a it…
A. It is something that students already do in science class.
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14 calculate the energy possessed by a single photon whose frequency is…
None of the provided options are correct. The correct energy value is approximately $6.30\times 10^{-20}\ J$.
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13. what is the frequency of electromagnetic radiation with a wavelengt…
$9.01\times 10^{15}\ Hz$ (corresponding to the last option)
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what was one major difference between the league of nations and the uni…
The UN has an enforcement arm to aid in peacekeeping.
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read the passage. dear science, my identical twins go to different scho…
A. They might focus on hygiene and discuss germs Lena encounters.
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activity b: fossil evidence get the gizmo ready: • make sure your scree…
1. Since Lystrosaurus couldn't swim far, the presence of its fossils in different continents implies the continents were once together as a single landmass where it could roam fre…
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which correctly lists three scientists who supported the heliocentric m…
D. Kepler, Galileo, Copernicus
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how did keplers discoveries contribute to astronomy? they supported the…
1. They established the laws of planetary motion.
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heat produced by nuclear fission is carried away by (24)______, which e…
31. false 32. false 33. true 34. true 35. true 36. true 37. false 38. false 39. true 40. false 41. true
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why was it difficult for people to accept a heliocentric concept of the…
D. Aristotle was famous and his ideas were supported by religious teachings.
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which idea was supported by aristarchus, copernicus, and galileo? the p…
The planets revolve around the Sun.
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using the waves shown, identify the wave with the greatest frequency. *…
C
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look at the diagram of the solar system. what observation did this geoc…
C. retrograde motion
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look at the image of the solar system. which object is a gaseous giant?…
Y
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using the waves shown, identify the wave with the longest wavelength. *…
D
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consider what you know about the cycling of earth’s materials, includin…
Mining reduces the natural amount of minerals on Earth as it extracts them from the ground. It can affect the surrounding environment by causing habitat destruction, soil erosion,…
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read the excerpt from act 3, scene 1, of julius caesar. caesar so in th…
Caesar refuses to reverse Cimber's banishment. He says that, although the world is full of reasonable men, he is the only one who stands firm, and he will stick by his sentence to…
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the blue color in some fireworks occurs when copper (i) chloride is hea…
D. $4.42\times 10^{-19}\ J$
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answer the following questions. 1. what is the difference between a min…
1. A mineral deposit is a natural occurrence of minerals. An ore deposit is a mineral deposit that can be mined economically. 2. Surface mining and underground mining. 3. Strip - …
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what is the speed of an electromagnetic wave with a frequency of 1.33 x…
$3.00\times 10^{8}\frac{m}{s}$
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3. how large were the forces engaged in the battle? (for a land battle …
3. Requires research of historical battle - force records. 4. Requires study of historical battle - strategies. 5. Requires analysis of historical battle - outcomes and reasons.
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which describes one way that aristarchuss explanation of the movement o…
He argued that Earth rotates on its axis.
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the following information is for the fictitious nation alpha: working -…
a. 5 b. 60
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why was copernicuss heliocentric model not believed until galileo and k…
The model was against religious teachings.
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7 the microwaves used to heat food have a wavelength of 0.125 m. what i…
$1.59\times 10^{-24}\ J$
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— words a. brash b. bolster c. benign d. bewilder e. blunder f. bellige…
1. H. browbeat 2. F. belligerent 3. J. burly 4. A. brash 5. D. bewilder 6. B. bolster 7. K. berate 8. C. benign 9. E. blunder 10. L. bough 11. M. brig 12. G. benevolence
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in addition to proposing that planetary orbits are elliptical, what oth…
Planets closer to the Sun move faster.
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at noon the temperature was 6°c. over the next five hours the temperatu…
C. $14^{\circ}C$
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6 calculate the energy possessed by a single photon whose frequency is …
$4.19\times 10^{-13}\text{ J}$
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objects get their colors from reflecting only certain wavelengths when …
$6.12\times 10^{14}\ Hz$
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using the waves shown, identify the wave with the shortest wavelength. …
C.
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3 while an fm radio station broadcasts at a frequency of 94.7 mhz, an a…
$362\ m$
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2 what is the energy of a photon of red light that has a frequency of 4…
$2.97\times 10^{-19}\ J$ (the last option)
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using the waves shown, identify the wave with the lowest energy. * q (0…
D.
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check for understanding answer the following questions. 1. what is a re…
1. A natural resource that can be replenished or regenerated over time through natural processes at a rate equal to or faster than its consumption. 2. Solar and wind are often goo…
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3 grams is the same as how many ounces? hint: 1 g ≈ 0.035 oz round your…
0.1
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jaianna wants to calculate the average daily change in temperature over…
1.7°C
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all greenhouse gases are emitted by natural processes. true false
FALSE
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how many teaspoons are there in 3 milliliters? hint: 1 ml ≈ 0.2 tsp rou…
0.6
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2 grams is how many ounces? hint: 1 g ≈ 0.035 oz round your answer to t…
0.1
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ozone is produced: a by atmospheric processes b while cooking c while e…
A. By atmospheric processes
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what forestry tool is this? biltmore stick log rule clinometer plainome…
A. Biltmore stick
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some of the major greenhouse gases in the earths atmosphere are ______ …
d. All of the above
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4 kilograms is the same as how many pounds? hint: 1 kg ≈ 2.2 lb round y…
8.8
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what forestry tool is this? tree caliper wheeler caliper diameter tape …
C. Diameter Tape
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5. practice: fill in the two processes that cause each of the following…
A. Evaporation, Condensation B. Freezing, Precipitation 6. Most water is salt - water, uneven distribution, and water pollution.
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cfcs are a made by humans b naturally occurring c produced by bacteria …
A. Made by humans
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what type of boundary is depicted in the image below? a. transform b. c…
d. divergent
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what forestry tool is this? staff compass hand compass stereoscope rela…
A. Staff Compass
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what type of boundary is depicted in the image below? a. transform b. c…
d. divergent
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what forestry tool is this? pulaski peavy canthook council fire rake ho…
Hookeroon
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what forestry tool is this? pulaski peavy canthook council fire rake ho…
Council Fire Rake
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what type of boundary is depicted in the image below? a. transform b. c…
Since the question doesn't provide the image details for a definite answer, we can't choose a specific option. But if we had to choose based on the general knowledge of plate - bo…
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a medical researcher prepares a number of doses of saline solution. thi…
C. for use as placebos.
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what forestry tool is this? backpack fire pump peavy hook drip torch ho…
C. Drip Torch
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what forestry tool is this? pulaski peavy cant - hook council fire rake…
A. Pulaski
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what happens when greenhouse gas levels in the atmosphere increase? a e…
B. The atmosphere traps more heat
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4. practice: fill in the process that causes each transition. your choi…
A. Evaporation B. Condensation C. Precipitation D. Melting E. Precipitation
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20. a given sample of gas has a volume of 4.20 l at 60.0 °c and 1.00 at…
$0.757\ atm$
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carbon dioxide, water vapors, and methane in the atmosphere result in _…
d. The greenhouse effect
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if an average - sized man with a parachute jumps from an airplane, he w…
$6.87$
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3. define: a phase change is a change from one state to another, such a…
Evaporation: Change from a liquid to a gas Condensation: Change from a gas to a liquid Melting: Change from a solid to a liquid Freezing: Change from a liquid to a solid
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for the conditional statement: if the car does not run, the car needs t…
C. The car does not run.
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19 guest, guest which phrase best describes the power of impeachment? a…
A. the ability of the U.S. House to charge federal officers with a crime or violation
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what is your bodys fastest growing organ? stomach skin liver rewatch
skin
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nuclear power plants produce waste products that are harmful to the env…
A. TRUE
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19 guest, guest which phrase best describes the power of impeachment? a…
A. the ability of the U.S. House to charge federal officers with a crime or violation
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thermal power stations involve the heating of water to create steam. a …
a. TRUE
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16 southernmost point on earth * north pole south pole hemisphere degre…
B. South Pole
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water in a nuclear reactor is never heated. a true b false
b. FALSE
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the only major accident so far at a nuclear power plant was caused by a…
b. FALSE
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15. northernmost point on earth * north pole south pole hemisphere degr…
A. North Pole
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14. one half of the earths surface * north pole south pole hemisphere d…
C. Hemisphere
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13. the line at zero degrees longitude that divides earth into the west…
C. prime meridian
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12. the line at zero degrees latitude that divides earth into the north…
D. equator
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a dietician examines the diet of a patient who is complaining that he i…
amino acids
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when turning a patient, what segment of the body should be moved first?…
Upper body
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11 imaginary lines running east and west * latitude longitude prime mer…
A. Latitude
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10. imaginary lines running north and south latitude longitude prime me…
B. Longitude
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how many times should the patient’s pulse and respirations be checked d…
C. 3
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negative environmental consequences of nuclear power include a ozone de…
C. Waste that is radioactive for hundreds of thousands of years
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9. which one of these is not one of the five major oceans * atlantic in…
Persian Gulf
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to generate power, uranium atoms in fuel rods a are hit by tiny particl…
A. Are hit by tiny particles so that they split apart
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19. a helium balloon with a pressure of 1.00 atm and a volume of 4.50 l…
$6.48\ L$
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8. a large body of salty water * continent ocean globe longitude
B. Ocean
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how many significant digits do the following numbers contain? 1. 347.09…
1. 5 2. 1 3. 1 4. 7 5. 2 6. 88 7. 4.4×10¹² 8. 0.019 9. 9.0×10³ 10. 630 11. 150 12. 11000 13. 11 14. 2000000 15. 1.0×10⁷