物理
运动学、受力分析、电学与方程推导。
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3. choose the best answer. it is important to communicate or publish en…
3. maintain or repair the engineering solution 4. prototype
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which atmospheric layer gets warmer as altitude increases and contains …
B. stratosphere
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which gas in earths atmosphere forms ozone? o oxygen o nitrogen o water…
Oxygen
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controls the release of hormones and the nervous system that controls b…
1. Brain
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which word describes the amount of matter an object contains? altitude …
C. mass
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self - concept: how you see yourself changes choose an answer lets try …
4. Emotional change during puberty
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joe, a hiker, stands at the top of a hill on a trail above the ocean. j…
If Joe keeps going up, air pressure will continue to decrease.
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which is one way that earth’s atmosphere supports life? it filters out …
It keeps Earth warm.
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which gas is most abundant in earths atmosphere? oxygen nitrogen water …
B. nitrogen
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how individuals identify which emotions they are feeling. choose an ans…
4. Awareness of emotions
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5. match the sentences with the terms. an object tends to resist a chan…
1. Inertia 2. Friction 3. Static friction 4. Weight 5. Prototype 6. Engineering 7. Net force
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6. choose the best answer. what happens when forces are balanced? the o…
The direction and speed of the object remain constant.
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7. choose the best answer. a ball thrown into the air will eventually f…
unbalanced force
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read the sentences below, filling in the blanks with items from this li…
1. theme 2. setting 3. plot 4. character 5. perspective 6. motivation 7. symbolism 8. conflict 9. contrast 10. analysis
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8. choose the best answer. which object will have the most inertia if p…
a box of computer parts weighing 8.4 kg
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9. choose the best answer. which surface would provide the least fricti…
a concrete pad
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10. choose the best answer. athena and ella are each pushing against a …
Ella wins since she pushes with more force.
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12. choose the best answer. what is the act of changing position? net f…
C. motion
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13. choose the best answer. the unit of measurement of force is the ___…
D. newton
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14. choose the best answer. a(n) ____ is something that attempts to pus…
A. force
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15. choose the best answer. ____ forces cause objects to move or change…
B. Unbalanced
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the atomic emission spectrum for a particular element includes blue - v…
1. A. $6.63\times 10^{-34}\ Js$ 2. B. $3.00\times 10^{8}\ m/s$ 3. F. $4.52\times 10^{-19}\ J$ 4. D. $440\times 10^{-9}\ m$
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use the same equation as above to calculate the energy of uv light with…
1. A. $6.63\times 10^{-34}\ Js$ 2. B. $3.00\times 10^{8}\ m/s$ 3. F. $6.63\times 10^{-19}\ J$ 4. D. $300\times 10^{-9}\ m$ 5. G. higher energy
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question: how did the technological advances of the gilded age improve …
One example is electricity. It allowed for indoor lighting, enabling people to work, read, and socialize at night, increasing productivity and leisure time. Another example is the…
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3. if you were to go to a sandy beach on a sunny summer day, which woul…
The sand will feel warmer because water has a high specific - heat capacity and requires more heat to change its temperature compared to sand.
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17. choose the best answer. what would be a good title for the chart? c…
D. Things that Increase Friction
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18. choose the best answer. the force that resists motion when objects …
D. friction
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7. one year on venus is equivalent to 224.7 days on earth. how many day…
2134.65
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question 2 of 10 which of these strategies are recommended for preventi…
A. Condoms B. Abstinence C. Vaccination
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question 1 of 10 which std/sti infects the mucous membranes and causes …
C. Gonorrhea
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there are ways to protect yourself when excavating. which of the follow…
Slope or bench the sides of the excavation and support the sides of the excavation
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question 9 of 10 which term describes forced sexual activity with someo…
C. Rape
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your employer has the ability to protect you from cave - ins and other …
A. 5 feet
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which of these is known as the greatest danger associated with excavati…
B. Cave - ins
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cai is a nursing assistant caring for an elderly patient, miriam, who l…
None of the provided options are entirely correct. However, if we have to choose the most appropriate one from the given choices, Miriam is likely experiencing some form of cognit…
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what helps regulate the acid - base balance in the blood?
The respiratory system, the renal system, and buffer systems.
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unless made in entirely stable rock, at what depth is a protective syst…
A. Any depth if the competent person says so B. 5 feet and greater
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what feature helps track changes and align updates in shared documents?…
C. Using version history
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a. is the rock in the crust able to move around more easily than the ro…
No, the rock in the crust is not able to move around more easily than the rock in the lower mantle.
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3. if the inner core has the highest temperatures, why doesnt the rock …
The extreme pressure in the inner - core keeps the rock solid, preventing it from melting despite high temperatures.
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2. what causes the pressure to increase as you go deeper below the crus…
The weight of the over - lying rock and materials.
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question 3 of 5 which of these stis can be cured with the proper medici…
A. Gonorrhea
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question 3 of 5 which of these stis can be cured with the proper medici…
A. Gonorrhea
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extra practice q1. looking at the following graph, which of the followi…
A. The overall magnitude of the velocity decreases as the object approaches the maximum vertical displacement. C. The angle of the trajectory, to the horizontal, decreases to zero…
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question 2 of 5 which of these strategies is most likely to help someon…
B. Discussing issues with a trustworthy adult
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test your understanding q5.1 given the information above, which equatio…
f. $\Delta x = v_{0x}t$
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test your understanding q4.1 according to the diagrams below, which rel…
B. $v_x = v\cos\theta$ E. $v_y = v\sin\theta$ F. $v_0=\sqrt{v_{0x}^2 + v_{0y}^2}$ H. $\tan\theta=\frac{v_y}{v_x}$
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among many other responsibilities, a competent person is responsible fo…
True
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111.*facebook emotions in cooperation with researchers from cornell uni…
The research was unethical because it lacked informed consent from the 700,000 randomly - selected users. The users were unaware that their news - feeds were being manipulated, an…
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107. berry good eating blueberries and strawberries might improve heart…
There is an association between consuming blueberries and strawberries and better heart health in women, as women who consumed the most anthocyanins from these berries had a signi…
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question 4 of 5 what is the minimum distance that excavation materials,…
2 feet
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question 3 of 5 this excavation is at risk for cave - in and water accu…
Correctly Placed Spoils
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question 2 of 5 this excavation is at risk for a cave - in because the …
C. Shoring
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question 1 of 5 employees are working within an excavation that is more…
Access/Egress
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practice: scale factors and volume listen a computer science engineer i…
The model would be 42 inches long.
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esther needs to lift and move tools and materials all day at her worksi…
C. Use ergonomically - designed tools to help lift and move tools and materials
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question 1. an object goes from one point in space to another. how does…
5. Displacement is smaller than or equal to the distance travelled.
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unit 2 exam listen a song starts with a note tuned to 220 hz. what is t…
293 Hz
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tracy owns a guitar and delia owns a standing bass. the bass strings ar…
lower
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the continued display of a behavior after reinforcement has been remove…
C. resistance to extinction
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andys social studies class is making relief maps of different states. a…
Mt. Whitney
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reinforcement attempts may not work if the reinforcer is not important …
A. T
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80. comment on the accuracy and precision of these basketball free - th…
a. High accuracy, high precision. b. Low accuracy, high precision. c. Low accuracy, low precision.
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question 8 of 15, step 1 of 1 6/15 correct t = 2π√(l/g). this is the fo…
$g=\frac{4\pi^{2}l}{T^{2}}$
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many of the deepest places on earth are still unexplored. however, a gr…
Mariana Trench
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understand concepts 78. list two possible reasons for reporting precise…
1. Incorrect calibration of measuring - device. 2. Human error in measurement technique. ### 79.
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1. prepare a list of objects in your home under three categories: (i) o…
(i) Rubber - soled shoes, plastic comb, wooden table (ii) Copper wire, silver spoon, iron nail (iii) Toaster, hairdryer, electric kettle
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the mass of a cylinder made of barium with a height of 2 inches depends…
C. $y = 7.183\pi r^{2}$ and $y = 11000;r\approx22.07$ inches
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extinction occurs as behavior ______ due to lack of reinforcement. a. i…
D. gradually diminishes
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applause is a secondary reinforcer because ____________. a. the subject…
C. the subject has learned to be reinforced by it
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powers: the scientific method: what is science? how do i... multiple - …
False
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what does taft mean by \substituting dollars for bullets?\ using econom…
1. Taft means using economic influence over military force. He aimed to promote American business interests abroad through loans, investments, and trade deals instead of relying p…
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powers: the scientific method: what is science? how do i... the scienti…
C. ALL the Above
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4. during a spin to the left, which wing(s) is/are stalled? 1 point bot…
Both wings are stalled.
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2. as altitude increases, the indicated airspeed at which a given airpl…
2. remain the same regardless of altitude. 3. Stalled.
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1. the angle of attack at which an airplane wing stalls will 1 point in…
remain the same regardless of gross weight.
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powers: the scientific method: what is science? how do i ... multiple -…
experiments
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76. how many milliliters are contained in 1 m³?
1000000 mL
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powers: the scientific method: what is science? how do i ... the scient…
controlled variable
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scenario 1 edward runs a local courier service. he has recently conside…
1. Likely Part 107 small UAS for commercial use. 2. Multirotor. 3. Low - to - medium level of autonomy. 4. Complying with airspace regulations and aircraft separation. 5. Obtain P…
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powers: the scientific method: what is science? how do i... multiple - …
She used her observations.
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7. what do you think he means by “intervention?” how might the u.s. int…
7. Intervention can be various forms of involvement. U.S. may use economic or military means. 8. Using economic influence over military force. 9. Roosevelt emphasized military thr…
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powers: the scientific method: what is science? how do i ... multiple -…
B. controlled variable
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powers: the scientific method: what is science? how do i... multiple - …
controlled variable
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*74. make the following conversions: a. 157 cs to seconds b. 42.7 l to …
a. 1.57 s b. 42700 mL c. 2.61×10⁻⁴ mm d. 650 dm e. 0.00642 kg f. 8.25×10⁹ ng
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which body system produces proteins that help fight infections? the dig…
B. the immune system
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consider the following graph. cheryls commute which statement best desc…
A. Cheryl accelerated to 65 mph, drove at a constant speed for 5.5 minutes, and then decelerated to 45 mph.
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68. would the density of a person be the same on the surface of earth a…
Yes, the density of a person would be the same on the surface of Earth and on the surface of the moon because mass and volume of a person do not change due to the change in locati…
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67. what equation is used to determine the density of an object?
Density ($ ho$) = $\frac{Mass (m)}{Volume (V)}$, or $ ho=\frac{m}{V}$
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*66. the melting point of silver is 962°c. express this temperature in …
$1235.15$ K
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65. state the relationship between degrees celsius and kelvins.
The temperature in Kelvins (K) is given by the formula $K = °C+ 273.15$.
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8. how does the adult narrators reflective tone add to the theme of gui…
The reflective tone deepens the exploration of guilt by enabling the narrator to re - assess past actions, and it enriches the theme of memory by imbuing it with emotional weight …
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64. measure each of the following dimensions using a unit with the appr…
a. millimeters (mm) b. centimeters (cm) c. centimeters (cm)
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multiple choice question demand - oriented, cost - oriented, profit - o…
O approximate price levels
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match each of the following terms to its meaning (note: match the first…
I. E II. D III. C IV. A V. B
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aircraft 4: cessna 172 skyhawk to what segment does this aircraft belon…
1. The Cessna 172 Skyhawk belongs to the general aviation segment. 2. Its role is often for flight training, sightseeing, and personal transportation. This can be told from its sm…
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63. order these units from smallest to largest: cm, μm, km, mm, m, nm, …
Order: pm, nm, $\mu$m, mm, cm, dm, m, km In terms of meters: pm = $10^{-12}$ m, nm = $10^{-9}$ m, $\mu$m = $10^{-6}$ m, mm = $10^{-3}$ m, cm = $10^{-2}$ m, dm = $10^{-1}$ m, m = 1…
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3.2 units of measurement 62. write the si base unit of measurement for …
a. second (s) b. meter (m) c. kelvin (K) d. kilogram (kg) e. joule (J) f. mole (mol)
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select the correct answer. which sentence has faulty parallel structure…
B. Good employees must be punctual, dependable, and innovative.
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5. the fortune cat, stolen and hidden in the backpack. part b: short an…
Mood is the emotional atmosphere in a literary work. Imagery such as heat, light, smells, and sounds can greatly influence the mood. For instance, the smell of freshly - baked bre…