物理
運動學、受力分析、電學與方程推導。
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which are examples of social engineering? choose three answers. student…
B. Phishing websites, C. Emails asking for information, E. Phone calls asking for information
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which type of pipe or tubing has the same dimensions as steel pipe of t…
B. PVC pipe
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nutrients assessment empty calories are very nutrient dense true false
False
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5 multiple choice 2 points why are the rocky planets closer to the sun …
D. Heat from the Sun burned up all of the nearby ice, leaving only rocky material
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nutrients assessment match the calories with the nutrient carbs protein…
To solve the problem of matching calories with nutrients, we rely on nutritional science knowledge: - **Carbs (Carbohydrates)**: Provide 4 calories per gram. - **Protein**: Also p…
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which type of attack method is used to intercept data while it is being…
D. Man - in - the middle
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the idea of restricting both physical and file/server access to only th…
C. principle of least privilege
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what caused the nebula cloud to compress and fall into itself? ○ gravit…
D. All of the above (Note: Assuming the options are labeled A - D with A: Gravity, B: Shockwaves from a nearby supernova, C: Pressure from the mass of the material in the nebula, …
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4. describe one reason someone might not support the 30 by 30 initiativ…
One reason: Concerns over restricted land use for economic activities (e.g., farming, mining) or private property rights, fearing financial losses or government overreach.
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what is a personal program? * - because you will forget - structure you…
C. A plan to collect information about your personal needs ### Second Question: How many Americans say they eat a balanced diet?
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how do the planets form? material from space was pulled into the sun’s …
C. Gravity caused matter around the newly formed Sun to collide and combine into large spheres
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which are an example of nutrient dense food? beans blueberries fries po…
A. beans, B. blueberries, E. Sweet potato, H. Avacado (and rice can also be considered nutrient - dense depending on the type, so G. rice can be included too)
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choose the best lab equipment to take the following measurements: 1. me…
### Part 1: Choose the best lab equipment to take the following measurements: 1. **Measure length**: - Equipment: Ruler (or meter stick, measuring tape). - Explanation: Rulers are…
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increasing the amount of privileges for a given user ______ a systems a…
B. increases
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pierre-louis, josalah select the word in paragraph 7 of passage 2 that …
appropriations
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1 multiple choice 2 points how did scientists learn how the solar syste…
B. By studying asteroids and comets
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ii. modified true-false. read each statement carefully. if the statemen…
+
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10. which students do special education teachers work with? a. band mem…
C. gifted students ### Question 11
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c. read the sentences below. then, circle the term that correctly descr…
### Part C 1. **Explanation for Q1**: The sentence shows a community fleeing due to a hurricane, which is a conflict (natural disaster vs. community). So we circle "conflict". 2. …
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16. what was the most likely reason for bringing africans to the englis…
To provide labor for the tobacco plantations (especially in Virginia) as the tobacco industry was growing and needed a large workforce. ### Question 17
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1. fill in the blank: moral principles used to guide one’s right and wr…
ethics ### Question 2
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a force of 250 n is applied to an object that accelerates at a rate of …
C. 50 kg
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a force of 20 n acts upon a 5 kg block. calculate the acceleration of t…
D. 4 m/s 2
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question 9 (10 points) the following infographic illustrates how prevai…
c. Descending air expands and warms, causing the water droplets to evaporate.
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question 8 (10 points) look at the following historical image of the ga…
d. Human environmental interaction
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a bowling ball rolled with a force of 15 n accelerates at a rate of 3 m…
ball #1:5 kg ball #2: 3.75 kg
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an object of mass 300 kg is observed to accelerate at the rate of 4 m/s…
1200 N
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fill in the blanks use the words from the box to complete the sentences…
Slavery ### 2.
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if a 60 kg dog on a 15 kg sled is pushed with a force of 300 n, what wi…
D. 4 m/s2
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question 6 (10 points) consider the following scenario and answer the q…
d. Erosion
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a 50 kg skater pushed by a friend accelerates 5 m/sec². how much force …
A. 250 N
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the mass of a large car is 1000 kg. how much force would be required to…
A. 3000 N
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question 4 (10 points) which two factors have the greatest effect on cl…
d. Latitude and distance from water
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question 2 (10 points) examine the following geologic effects to answer…
b. Convergent boundary
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examine the following world map to help you answer the question. the di…
a. Earth moves around the sun in distinct patterns.
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select the simple predicate. he received a promotion after three months…
received
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question: ____ is the use of living organisms to remove pollutants from…
Bioremediation
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question: which of the following are related to contour plowing? answer…
D. Hills
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question: which of the following is an example of nonrenewable energy? …
A. Nuclear energy
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question: which of the following should be used when an area’s overuse …
D. Sustainable development
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question: the human population growth of a country is directly related …
economic
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use the drop-down menus to complete the statements. investigations are …
To solve this, we analyze each type of investigation: 1. **Demonstrating cause - effect**: Experimental investigations manipulate variables to show cause - effect, so the first bl…
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experiment: a student put nitrogen gas into an airtight cylinder with a…
- Dependent Variable: pressure of gas - Independent Variable: Volume of the container - Hypothesis: If the volume of the container decreases, then the pressure of the gas will inc…
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question: the ____ carries warm water from the tropics across the atlan…
north atlantic drift (or gulf stream, as the North Atlantic Drift is a component of the Gulf Stream system and either term is acceptable here based on context; the key is the ocea…
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bellwork quiz 1: 1.) which of the following best defines the word aberr…
d. A departure from what is normal or expected ### Question 2
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question: how is the top layer of the ocean different from the deepest …
A. The top layer is warmer since it gets sunlight.
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question: why does burning fossil fuels have negative consequences for …
B. It releases $\ce{CO_2}$, causing climate change.
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question: why does burning fossil fuels have negative consequences for …
It releases $\ce{CO_2}$, causing climate change.
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hepatitis a questions washing hands can help prevent exposure true false
True (the option selected in the image is also True, which aligns with the correct answer as handwashing is a key preventive measure for Hepatitis A exposure).
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please match the prompts with the appropriate answer what is hepatitis …
- What is Hepatitis? : Inflammation of the liver - How is Hepatitis A Spread : Eating contaminated food or drink - Hepatitis A : Contagious liver infection - Vaccine : Two times s…
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sometimes people can stay sick for up to six months. true false
True (the option selected in the image is also True, and based on medical knowledge, this statement holds as some ailments can have long - lasting sickness periods).
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using the map below, determine which letter represents each continent o…
To solve this, we analyze the map and match each continent/ocean to its letter: 1. North America: The region labeled \( H \) matches North America’s location. 2. Africa: The regio…
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lea’s mechanic charges $60 to change the oil in her car, and $40 to rot…
$\$200.00$
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using the map below, determine which letter represents each continent o…
C. Africa ### Question 14
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1) north america 2) africa 3) australia 4) europe 5) atlantic ocean 6) …
A. Antarctica ### Question 14
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what is always included in a comparative investigation? a dependent var…
an independent variable
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question 6 of 20 : select the best answer for the question. 6. your fam…
D. Mobile source
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2. a student wants to test how the amount of sunlight affects the growt…
### Question 2 (Plant Growth Experiment) #### Step 1: Recall Variable Definitions - **Independent Variable (IV)**: The variable the experimenter changes (cause). - **Dependent Var…
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why did the nazi regime force jewish people into ghettos and camps? a t…
A. to detain and eventually murder Jewish people
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13) if you were in south america and flew east to australia which conti…
A. Antarctica ### Question 14
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question 2 of 20 : select the best answer for the question. 2. how do g…
C. Trapping energy from the sun in the earth's atmosphere
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identifying descriptive investigations use the drop - down menu to comp…
comparisons
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world geography - continents. using the map below, determine which lett…
H ### 2) Africa
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5. fill in the names of the types of waves in the electromagnetic spect…
Red #### b.
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77. right cn ix and x damage a. no uvula elevation on either side when …
a. No uvula elevation on either side when right pharyngeal wall is touched
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question: ____ data includes descriptions, observations, and explanatio…
qualitative
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question: which step is a part of engineering design but not a part of …
Building a prototype
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columna a 1. ___ selective service act/ley de servicio selectivo 2. ___…
1. a. Law requiring men to register for military service/Ley que exige que los hombres se inscriban en el servicio militar 2. f. Having merchant ships travel in groups protected b…
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what is the essential feature of science that makes it different from o…
The essential feature of science in understanding the natural world is its **systematic, empirical, and evidence - based approach** (via the scientific method: observation → hypot…
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1. two solid spheres of radius r made of the same type of steel are pla…
D. \( 81F_1 \)
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question 5 (1 point) listen appropriate values to use for the independe…
a) level of treatment or range
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question 2 (1 point) listen statement of the expected results of an exp…
b) prediction
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directions: based on alberto rio’s poem \the vietnam wall\, please answ…
D. The Vietnam Wall has a powerful emotional effect on the people who visit it. ### Question 5
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which of the following is equal to 1 g/cm³ ? multiple choice 10⁴ kg/m³ …
\(10^{3}\space kg/m^{3}\) (the option with \(10^{3}\space kg/m^{3}\))
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20.physical and human geography are the two __ branches, but they are n…
First blank: main Second blank: branches Third blank: aspect A. Cartography B. Hydrology C. Meteorology
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two cubes made of different substances have the same volume. the mass o…
The density of cube 1 is three times the density of cube 2.
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why is a solid object that is initially stationary suspended in a fluid…
The weight of the solid object is equal to the weight of the fluid displaced by the object.
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why does a solid object that is initially stationary sink in a fluid? m…
The weight of the solid object is greater than the weight of the fluid displaced by the object.
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why does a solid object that is initially stationary float in a fluid? …
B. The weight of the solid object is less than the weight of the fluid displaced by the object.
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it is commonly said that wood floats because it is lighter than water o…
The correct option is: No, these statements are not entirely accurate. A more precise explanation involves density. Wood is less dense than water, while the density of the sinking…
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what are the si units of torque? check all that apply n·m kg·m²/s² n·s …
A. $\boldsymbol{\mathrm{N\cdot m}}$, B. $\boldsymbol{\mathrm{kg\cdot m^2/s^2}}$
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what is torque? multiple choice a vector quantity describing the rate a…
D. A vector quantity describing the twisting force/action acting on an object, causing it to rotate around an axis. (Note: Assuming the last option is labeled D; adjust label as p…
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select all of the following that are not forces. check all that apply w…
B. mass, C. impulse, D. momentum
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15. __ is the name of the greek __ and librarian who is often times cal…
Eratosthenes, scholar, Father, Geography ### Question 16
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a cart initially moves to the right at constant velocity on a horizonta…
- They always have the same magnitude. - They are always in opposite directions.
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the units of momentum are: multiple choice n m/s n·m/s kg·m/s
D. kg·m/s (assuming the last option is D; if options are labeled differently, adjust the label but keep the unit text)
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translational momentum is equal to the product of which two quantities?…
B. mass and velocity (assuming the second option is labeled B; if the original labels differ, adjust to the correct identifier with "mass and velocity").
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suppose a rolling solid sphere has a mass of 1.50 kg and a linear avera…
0.177 J (the option corresponding to 0.177 J)
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an object moves neither up nor down on a horizontal surface. friction a…
B. Kinetic, potential, and mechanical energy are all constant.
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an object moves up an inclined plane. friction and air resistance can b…
B. Kinetic energy decreases, potential energy increases, and mechanical energy is constant.
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as a ball rolls down a ramp, the work done by gravity on the ball is mu…
A. positive and independent of the path taken.
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what is the si unit of work? multiple choice foot-pound (denoted as ft-…
D. Joule (denoted as J)
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given that the average rotational speed of a rotating object is approxi…
0.907 miles per minute (the option: 0.907 miles per minute)
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suppose the blades of a wind turbine generator slow down in a clockwise…
A. Positive since it is slowing down in a clockwise negative direction.
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suppose the blades of a wind turbine generator speed up in a clockwise …
D. Negative, since the blades are rotating in a negative clockwise direction. (Assuming the last option is D; adjust identifier if needed, but the text is "Negative, since the bla…
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what does the slope of the angular velocity vs. time graph represent? m…
D. Average angular acceleration (assuming the last option is D, as per the multiple - choice options given, with the last option being "Average angular acceleration")
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an object is undergoing a uniform circular motion. what can one say abo…
The acceleration has a constant magnitude, but its direction changes continuously.
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an airplane is traveling in level flight at a constant velocity. l is t…
Figure 2
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an airplane is traveling in level flight at a constant velocity. l is t…
To determine the correct answer, we analyze the force balance: 1. **Vertical Forces**: Lift ($L$) acts upward, weight ($W$) acts downward. For level flight, $L = W$ (magnitudes eq…
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an airplane is traveling in level flight at a constant velocity. l is t…
To determine the correct free - body diagram, we analyze the force balances: 1. **Vertical Force Balance**: The lift (\(L\)) acting upward must be equal in magnitude to the weight…