物理
运动学、受力分析、电学与方程推导。
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which properties make a metal a good material to use for electrical wir…
B. conductivity and ductility
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wilko: based on your results, what should we investigate next to obtain…
B. The effect of different doses of progesterone or testosterone on fertility, health and vitality of females
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an atom of the element zinc has an atomic number of 30 and a mass numbe…
A. 30
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wilko: based on your results, what should we investigate next to obtain…
B. The effect of different doses of progesterone or testosterone on fertility, health and vitality of females
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what are the two parts of an atom? ○ the nucleus and the proton cloud ○…
D. the nucleus and the electron cloud
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the standard blade of a handsaw is ______ inches long a. 26 b. 18-26 c.…
B. 18 - 26
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a crosscut saw has ______ teeth-per-inch than a ripsaw. a. fewer b. more
B. more
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______ chisels are longer and thinner than standard wood chisels. a. cr…
B. Paring
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what type of level provides a digital readout of degrees of slope, plus…
C. Digital
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the venn diagram compares protons with electrons. which shared property…
Is electrically charged
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question 2 (2 points) what is the name of the major health care law est…
A. The Affordable Care Act
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which type of pliers are used to hold and bend wire and to grip and hol…
C. Long - nose pliers
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which type of hammer is used to drive posts or for demolition work? a. …
C. Sledgehammer
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which type of screwdriver has a star - shaped tip? a. clutch drive b. a…
B. Torx®
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what nail puller is used to pull nails below or flush with the surface …
D. Cat’s paw
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the teeth of files designed for soft materials are more widely spaced t…
True
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cover letter for energy objective will create a cover letter for the tw…
### Paragraph 1 (Potential Energy) Potential energy is the energy an object possesses due to its position, state, or configuration, waiting to be converted into other forms of ene…
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when should the blade of a utility knife be replaced? a. once every fiv…
D. When it stops cutting and starts tearing materials
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who described atoms as small spheres that could not be divided into any…
B. Dalton
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tundras have a layer of frozen soil under the surface called _______. c…
C. permafrost
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which type of square combines a protractor, try square, and framing squ…
C. Combination square
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2 of 20 this quiz: 20 point(s) possible this question: 1 point(s) possi…
D. Socket wrench
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which of these best describes the amount of sunlight the arctic tundra …
A. Little
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in summer, the temperature in the tundra usually reaches a high of abou…
C. 50°F
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which shovel blade is used to shape trenches or holes that need smooth,…
B. Spade
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immersive reader what are the three types of tundra? choose one option …
D. Antarctic, Alpine, Arctic
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tundras are basically very cold deserts. they usually get less than 10 …
C. Tundras sometimes warm up enough for the surface ice to melt.
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which statement describes a property of a proton? ○ is found outside th…
B. has a positive charge (assuming the options are labeled A, B, C, D with A as "is found outside the nucleus", B as "has a positive charge", C as "has less mass than an electron"…
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the tundra is one of five biomes on earth. the others are grassland, fo…
C. On mountains
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atom a and atom b have the same number of protons, but they do not have…
Atom A and Atom B are isotopes of the same element.
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1. a student is writing a report to argue that renewable energy (like w…
b) Earth’s fossil fuel supplies are limited and will run out one day.
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the first model of the atom was developed through scientific experiment…
C. thinking about the smallest particles of matter without experimenting.
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3a - 1 mastery check: mass vs. weight version a 1. match the following …
- Mass: amount of stuff in an object - Weight: force of gravity between two objects - \( g \): acceleration due to gravity; gravitational field ### Question 2:
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shelters through the sale of se plates... i implore you to extend your …
b) Emotional appeals to pet owners
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2. why were many mesoamericans willing to ally with the spanish against…
B. The Aztecs were a conquering group who extracted tribute and sacrifices from subjugated people. ### Question 3
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b) units (13 pts): for each quantity listed, give the units of measurem…
1. Specific Heat: $\boldsymbol{\frac{J}{kg \cdot K}}$ (or $\boldsymbol{\frac{cal}{g \cdot ^\circ C}}$) 2. Spring Force: $\boldsymbol{N}$ 3. $\boldsymbol{m/s^2}$: Acceleration 4. L…
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19. desalinization technology helps humans by— a. creating artificial l…
B. Making ocean water drinkable ### Question 20 (Air conditioning's impact on population growth)
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1. how does the author’s use of dialogue in the initial exchange (parag…
B. Sarah’s language is controlled and fact - based, contrasting with Marcus’s emotional and reactive language.
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nevaeh williams 12110129 3 period religion and philosophy in early civi…
## Fill in the Blank (Religion and Philosophy): 1. polytheism 2. reason 3. guidelines 4. Monotheism 5. rituals ## Open - Ended Questions (Religion and Philosophy): 1. Religion hel…
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part 4- a) discrepancies (12 pts) & b) units (13 pts): a) discrepancies…
### Lab 9 - Density Lab Discrepancy: - **Cause**: Temperature - induced volume change of the liquid. - **Mismeasurement**: Volume measured with a non - temperature - controlled gr…
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practice question - chapter 0 (toolbox) 2b. what is the longest length?…
A. \(10^{-2}\text{ km}\)
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question 8. according to nasa, our moon moves approximately one inch aw…
A. The moon would orbit slower and have a greater orbital path.
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figure 1 size comparison between io (lower left), the moon (upper left)…
A. Io has a larger diameter than Earth's moon, D. An astronaut would weigh more standing on Io's surface than on Earth's moon
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figure 1: size comparison between io (lower left), the moon (upper left…
# Brief Explanations: To determine which observations show Io has a stronger gravitational pull than Earth's Moon, we analyze each option: - **Option A**: Diameter relates to size…
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based on the model, which statement correctly describes the gravitation…
C. The gravitational force is equal in magnitude for both planets.
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question 1. a student is modeling the solar system to understand orbita…
C. Gravitational force
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short answer questions answer the following short answer questions abou…
NASA crashed the DART spacecraft into the asteroid Dimorphos (a moon of asteroid Didymos) as part of the Double Asteroid Redirection Test (DART) mission. The goal was to test the …
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part 3- graphing (25 pts): plot spring force versus displacement for th…
The slope of the best - fit line (which represents the spring constant \(k\)) is approximately \(20\space N/m\) (the value may vary slightly depending on the choice of points, but…
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2. why was dimorphos chosen as the target for the dart mission? a. it w…
A. It was a safe asteroid to test on because it wasn't headed toward Earth.
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a ball weighing 100 g is attached to a string and swung around with a s…
D. 80 cm
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started: dec 10 at 9:46am quiz instructions your online final exam enco…
A. Compensated Emancipation
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read the passage. from his hero on the porch of the old inn there now s…
2. The daydreams cause the boy to experience a range of emotions.
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high and low daily temperatures in pincher creek, ab a) what do the bar…
The bars going downward indicate the low daily temperatures, and these low temperatures are below a reference point (e.g., 0°C) and in the negative (cold) range. ### Part b)
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90.7 ma = 11. 450.1 k ω = ? ω 450.1 k ω = 12. 0.0028 a = ? ma 0.0028 a =
For \(90.7\space mA\) (assuming to A): \(0.0907\space A\) (if other unit, adjust accordingly) For \(450.1\space k\Omega\) to \(\Omega\): \(450100\space\Omega\) For \(0.0028\space …
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what caused the trees to change color and look darker? forest fires dis…
C. Soot from an increasing number of factories
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18. a volcano erupts on earth’s surface causing a piece of rock with a …
902.5 N (corresponding to the option with 902.5 N)
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17. the box below has a mass of 5 kg and is being pulled along a level …
2.4 m/s² (corresponding to the option with 2.4 m/s²)
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16. a student throws a ball with a force of 10.5 newtons. the ball acce…
3 kg
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15. a cannonball with a mass of 9kg is moving at 39 m/s. how many joule…
6,844.5 J (corresponding to the option with 6,844.5 J)
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14. which of the following diagrams represents a box in equilibrium? (d…
The first diagram (with $5\,\text{N}$ left - right and $2\,\text{N}$ up - down forces) represents a box in equilibrium.
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14.95 m = 8. 21.0748 kg = ? g 21.0748 kg = 9. 64.1 ω = ? kω 64.1 ω = 10…
- Problem 8: \(21074.8\space g\) - Problem 9: \(0.0641\space k\Omega\) - Problem 10: \(0.0907\space A\)
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13. a runaway wagon rolls down a hill. it has 37 j of kinetic energy an…
47 J (corresponding to the option "47 J")
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13. a running camper (like a car) rolls down a hill. it has 37 j of kin…
127 J (corresponding to the option with 127 J)
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11. calculate the time (in seconds, rounded to the nearest whole number…
3.0 s
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10 a bullet is fired with a horizontal velocity of 335 m/s it spent 0.5…
167.5 meters (the option with "167.5 meters")
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9. the diagram below represents a ball projected horizontally with an i…
\( 4.5 \)
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8. a snowball is thrown horizontally with a velocity of 36 m/s and land…
0.56 s
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7. a projectile is in flight. assuming air resistance is negligible, wh…
D. Gravity
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6. ignoring air resistance, the shape of a projectiles trajectory is al…
Parabola (the option with "Parabola" text)
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5. which of the following segments shows acceleration? options: a, b, c…
B
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4. which of the following segments shows the fastest constant velocity?…
A. A
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3. a car travels 20 km due north. it then turns around and travels 30 k…
10 km south
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the most common consensus standard followed by companies in order to pr…
A) NFPA 70E
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multiple choice the most common consensus standard followed by companie…
A) NFPA 70E
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1. in the position graph, an object moves along the path from point a t…
8 (the option with 8)
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sharecroppers could fall victim to peonage for all of the reasons excep…
D. Landless farmers could be forced on the land until their debts were paid.
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the orbital period, p, of a planet and the planets distance from the su…
9.5 AU
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4 multiple choice 1 point sudden shifts of vehicle weight to the left, …
A. traction ### Question 5 (Multiple Choice, 1 point)
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how does the author distinguish reconstructive and cosmetic surgery in …
C. by explaining the purposes of the two types of plastic surgery
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which of the following is the best summary of the article? a plastic su…
A. Plastic surgery originated in ancient India, with Sushruta making significant contributions to both plastic and cataract surgery. Rhinoplasty, or nose reconstruction, became wi…
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multiple choice 1 point sudden shifts of vehicle weight to the left, ri…
traction ### Second Question (To correct front traction loss...):
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(from sense and sensibility by jane austen) which is the major contrast…
4. Elinor is reasonable and restrained, whereas Marianne is melodramatic and ardent.
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in a hunt seat equitation class, what happens when an exhibitor goes on…
C. The exhibitor receives a five (5) point penalty
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1 multiple choice 1 point when accelerating to quickly, weight moves to…
B. rear (assuming the options are labeled as A. front, B. rear, C. side, D. top) ### Question 2 (True or False)
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what are the conditions for an object to be in static equilibrium? a th…
A. The net force acting on the object and the sum of the torque is zero.
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the diagram shows a 15-kg box resting on a wedge which has an angle of …
A. \( F_f = 0.15F_N \)
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the coefficient of friction between a car and dry pavement is approxima…
C. A car requires less applied force to move on wet pavement.
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part 1 - definitions (25 pts): please match the following 25 words to t…
- Weight: 25 - Phase: 8 - Buoyant: 9 - Zero: 2 - Calorie: 17 - Archimedes: 1 - Torque: 4 - Virtual: 11 - Speed: 3 - Real: 20 - Pressure: 5 - Circuit: 10 - Energy: 13 - Kinetic: 21…
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which is the correct free body diagram for a box being pushed across a …
B. (The diagram labeled B)
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the angle of 12° is a(n) neither both angle of elevation angle of depre…
angle of depression
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select the correct answer the national weather service collects data on…
The relationship between consecutive hours of rainfall and minor traffic accidents is a negative linear relationship, with the equation of the line of best fit being \(y=-x + 9\) …
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what are the conditions for an object to be in static equilibrium? a th…
A. The net force acting on the object and the sum of the torque is zero.
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what inference can be made based on paragraph 4 of \is it volunteering …
B. Many administrators or teachers do not trust students’ motivation to volunteer.
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the diagram shows a box resting on a wedge which has an angle of inclin…
C. 20 kg
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from a point 340 meters from the base of the hoover dam, the angle of e…
B. 220.80 meters
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crack is much more accessible drug in high income areas and for users t…
False ### Second Question (Crack entering bloodstream):
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crack is difficult to make, hard to use, and not much profit true false…
B. False ### Second Question (Crack cocaine is smoked from a glass pipe most of the time. However, crack cocaine can be injected into veins)
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read the passage what is a spacewalk? 1 any time an astronaut gets out …
2. Spacewalks allow astronauts to conduct research and repair their spacecraft.
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people who use crack have trouble eating and sleeping true false questi…
True ### Second Question (Crack pipes are short because the smoke does not stay potent very long)
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listed in the item bank are key terms and expressions, each of which is…
- Will accelerate to the left: - A box experiences a 20 N force to the left and a 19 N frictional force to the right - A box experiences a 20 N force to the left and two different…