物理
运动学、受力分析、电学与方程推导。
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which is not a reason why seagrass beds are important? they provide ref…
the levels of dissolved oxygen change over hours of the day.
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the graph shows the height of the water in a rain gauge during a rainst…
D. the amount of rain in the rain gauge at the beginning of the rainstorm
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2.3.3 quiz: two - way frequency tables a medical company tested a new d…
D. Yes. A greater percentage of teens experienced side effects than adults.
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which image best represents the particles in liquids
The second image.
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how does a structural filtration system work to prevent stormwater runo…
It uses vegetation or sand strips near the water
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4. the oceans unpredictability often mirrors pis own ______________ and…
1. C. Both protection and isolation 2. C. It symbolizes the vast unknown and inner struggle 3. A. Because it is small and restricts Pi's movements 4. B. Its unpredictability mirro…
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what is a thermocline? a rapid change in temperature with depth a rapid…
# Breve explicación: La termoclina es una capa en el agua (por ejemplo, en océanos o lagos) donde hay un cambio rápido de temperatura con la profundidad. Las otras opciones descri…
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which component of a feedback mechanism determines the set point for va…
Sensor
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read the excerpt from \sinners in the hands of an angry god\ we find it…
B. throw with force
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what is an independent variable? the variable that is changed in the ex…
the variable that is changed in the experiment
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respond - as a politician william jennings bryan won national renown fo…
1. Bryan worked from within the Democratic Party to advance populist causes. 2. In 1895 - 1896, Bryan launched a national speaking tour in which he promoted the free coinage of si…
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essential question: what do laboratory safety symbols mean? a. safety s…
| Symbol | Meaning | Description | Example Precautions | | ---- | ---- | ---- | ---- | | <img src="second symbol" alt="second symbol"> | Corrosive | Substance can cause burns | We…
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in this example: \a bug repellant is sprayed on one arm the other arm i…
Number of bug bites
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question 7 1 pts in a list of the densities of common materials, which …
35,885 g/mL
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a ball is thrown into the air with an upward velocity of 80 feet per se…
after 5 seconds
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historical understandings quick check which observation by ernest ruthe…
alpha particle deflection
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how does the coulomb force affect charge interactions? (1 point) like a…
B. Like charges repel, and opposite charges attract.
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when using a portable band saw, what should the stop be placed firmly a…
A. object being cut
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which information did millikan contribute to the understanding of elect…
He determined the amount of charge on an electron.
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question 11 1 pts what is 600mg expressed in grams? 600,000g 0.0006g 6g…
0.6g
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how is wood cut when ripping with a table saw? o at an angle o against …
C. to a specific width
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why should a circular saw that does not have an upper blade guard never…
The exposed blade poses a danger.
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multiple choice 1 point how old was the earth when it got water? 4.5 tr…
C. 4.5 billion years
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what are constants in an experiment?
Constants in an experiment are factors that remain unchanged throughout the experiment to control for extraneous influences and allow for accurate assessment of the relationship b…
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identify the state(s) of matter that each property describes. takes the…
takes the shape of its container: gas, liquid can be poured: gas, liquid fills all available space: gas is compressible: gas maintains its shape: solid has a fixed volume: solid
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which is an example of qualitative data? density melting point mass col…
color
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discussion: air and water resources graded discussion discussion topic …
There is no specific answer provided as it requires local - area research. One would need to look into local, state, and national policies regarding air quality improvement (e.g.,…
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00104 - introduction to power tools when is a pneumatic drill commonly …
when electricity is unavailable
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which part of a drill holds the drill bit in place? o auger o shank o r…
D. chuck
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what does a heavy - duty cordless drill have that is different from a t…
B. voltage rating
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1. describe the most common type of nuclear fusion in the sun. 2. what …
1. The proton - proton chain reaction. 2. Helium and energy (gamma rays and neutrinos). 3. Hydrogen will decrease, helium will increase. 4. The photosphere. 5. In the radiative zo…
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what is never to be engaged when using power tools? booster bit shank t…
C. trigger lock
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question 15. why did plantations depend on the use of slavery? a to pro…
A. to provide a large labor force for large areas of land
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what material is drilled with a hammer drill? concrete cast iron stainl…
A. concrete
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which power tool works well for driving (or loosening) a large number o…
C. impact driver
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what do pneumatic tools run on? manual pumping action compressed air fl…
B. compressed air
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which fastening system is used to drive steel pins or threaded studs in…
C. powder - actuated tool
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what range of pressure should pneumatic nailers be operated? 30 to 80 p…
B. 60 to 110 psi
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how do electric and pneumatic nailers differ from powder - actuated nai…
do not require certification
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find the sum of the numbers below and then select the most accurate ans…
933.7
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what type of tool is a porta - power®? o battery - powered o pneumatic …
C. hydraulic
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question 1 - 1 the list below contains the names of different types of …
D. transmission electron microscopes and scanning electron microscopes
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what are two of the most important pieces of ppe when using a grinder? …
ear protection, safety glasses
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which grinder accessory can be used to provide a stable surface for fle…
B. backing pad
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true or false: your body systems can keep you healthy and working prope…
False
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what type of rotary bits can cause a grinder to catch on rough material…
C. burr
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what is an angle grinder used to grind? nonmetals only imperfections in…
C. hard, heavy materials
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which is a compact tool that operates by moving attachments back and fo…
C. Impact driver
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how many significant figures are in 0.003048?
A. 4
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how many independent variables should there be in an experiment and wha…
There should typically be one independent variable in a well - controlled experiment, but in more complex cases, there can be multiple. An example of an experiment could be testin…
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how many significant figures are in the number 94.5509?
A. 6
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the period of the earths orbit around the sun is ______. 1 day 1 year 2…
B. 1 year
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complete the following statement: the farther away two planets are the …
D. less
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what does the geocentric system look like?
The third image (the one with circular orbits around a central point representing Earth)
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who proposed the heliocentric system? copernicus ptolemy aristotle gali…
A. Copernicus
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what is at the middle of a heliocentric system? mars moon sun earth
C. Sun
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which is not one of keplers laws? planets travel in an ellipse planets …
D. Planets revolve around the Earth
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when do planets move the fastest? close to the sun far away from the sun
A. Close to the sun
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the path a planet travels around the sun is called its orbit ellipse ba…
A. orbit
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keplers first law states that the orbits of the planets are oval in sha…
ellipses
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a planet moves ____________ when it is farthest from the sun. faster sl…
slower
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multiple - choice question which system does the kidneys in the excreto…
A. Cardiovascular/Circulatory System
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true or false: kidneys remove waste from the blood. true false
True
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multiple - choice question true or false. the epidermis (i.e. skin) is …
False
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keplers second law - the law of equal areas. where is the planet moving…
Position A to B
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how is the control group treated differently from the experimental grou…
The control group does not receive the experimental treatment, while the experimental groups do.
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multiple - choice question the functions of the excretory system are ..…
removing metabolic waste and maintaining osmotic(water) balance
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the place where a planet is farthest away from the sun in its orbit aro…
aphelion
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the place where a planet is closest to the sun as it orbits the sun is …
perihelion
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multiple - choice question nutrients are absorbed by the... stomach sma…
B. small intestine
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multiple - choice question true or false: blood in humans can be blue. …
B. False
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covers: birth control, healthy & unhealthy relationships, decision maki…
1. Abstinence 2. Birth - control pill, Hormonal IUD 3. Condom 4. Get tested at a healthcare facility 5. A relationship with open communication, respect for boundaries, support for…
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multiple - choice question arteries carry blood away from your heart to…
to your heart
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question #3 instructions for student read the question carefully and se…
Question 3: D. "There was no sound in the night as Rainsford sat there, but the muffled throb of the engine that drove the yacht swiftly through the darkness..." Question 4: A. It…
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an environmental engineering technician is mostly responsible for______…
D. making workplaces safe
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environmental engineering technicians typically need an associates degr…
A. true
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multiple - choice question which is an observation? data and informatio…
Data and information you gather usually by using your senses or a tool
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environmental engineering technicians wear ______ to work. a gym shorts…
B. uniforms with the company logo on them
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environmental engineering technicians do all of the following except a …
B. work in an office all day
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multiple - choice question what are two steps that could be added to th…
B. Research and Prediction
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sharon kicks a ball from the ground into the air with an upward velocit…
4 seconds after the ball is thrown
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eleanor wants to show her class a comparison of melting rates between t…
Graphs better illustrate the comparison of two different data sets.
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pulleys and mechanical advantage read the passage and answer the follow…
Question 9: A. The atom is a positively - charged ion. Question 10: Atoms vary based on their number of Protons; Ions vary based on their number of Electrons.
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which of these statements correctly compares probeware (such as an elec…
Probeware is useful for obtaining many measurements in rapid succession
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what is a caliper used for? o to make a precise measurement of volume o…
to make a precise measurement of length
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a researcher wants to show the effects of slight changes in ph on the r…
Tables better illustrate precise data points.
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thomas wants to measure the temperature change that occurs when sodium …
A. a thermometer
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which of these units is most appropriate for describing a 26 - mile mar…
kilometer
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how many milliseconds (ms) are there in 3.5 seconds (s)? 35 ms 350 ms 3…
3,500 ms
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what is the difference between the two different methods shown for slic…
The vertical slice (where you cut off the root) is for when you will use onions that are raw, while the straight across slice is for when you will use the onion that is cooked
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which of these units is most appropriate to use when measuring the mass…
kilogram
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4 why is it important for search - and - rescue dogs in training to be …
# Breve explicación: El entrenamiento de perros de búsqueda y rescate con juguetes es para simular la búsqueda de personas perdidas. La capacidad de buscar una juguete durante muc…
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10. ¿con qué relacionas las palabras bahía, ríos, montañas? ○ a. con la…
B. con la geografía
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2. which part of the plot reinforces the theme? the resolution shows ik…
The resolution shows Iktomi's foolish lack of remorse for his actions.
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read the excerpts from ovids pyramus and thisbe and shakespeares romeo …
D. Both take place in time periods in which men carry weapons.
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a day on venus is about 243 earth days. a day on mercury is about 58.64…
184.354
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a day on venus is about 243 earth days. a day on mercury is about 58.6 …
A day on Venus is 184.4 Earth - days longer than a day on Mercury.
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how did the triangular trade benefit europeans? o europeans obtained ra…
Europeans obtained raw materials from the Americas.
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sun’s path in the sky during the year use the word bank above to comple…
1. Summer; longer; earlier; later 2. Spring; Fall; equal; Equator 3. Winter; shorter; later; earlier
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seasons on earth look at the diagram above. for each earth locationa - …
| Earth | The Northern hemisphere is in which month: March, June, December, September | The Northern hemisphere on Earth experiences: summer solstice, winter solstice, fall equino…