物理
运动学、受力分析、电学与方程推导。
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rising levels of carbon dioxide most likely have a greater detrimental …
have a greater detrimental effect on the sea than the land.
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2) choose the best answer. ____ are visual representations used to expl…
2) Graphs 3) independent; dependent
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5) choose the best answer. another way to reduce bias is to make sure a…
random
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3) choose the best answer. ____ is a process by which scientists influe…
3) A. Bias 4) B. bias
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2) drag and drop the descriptions with the variables. these variables d…
- "These variables do not change in an experiment." → control - "This value changes in response to the independent variable." → dependent - "Scientists change this variable on pur…
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1) check the box if the statement describes descriptive, experimental, …
- A scientist studies different metals to see which is best for making prosthetic limbs (i.e., artificial arms or legs): applied - done to test hypotheses: experimental - A scient…
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the base unit for time is ____. gram liter kilogram meter seconds 18. c…
- First question: seconds - Second question: meter
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3. choose the best answer. the base unit for volume is ____. liter kelv…
liter
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use the data table below to answer the question: what is roadrunners sp…
7.14 m/s
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a ruby laser produces radiation of wavelength 632 nm in pulses with a d…
\(1.83\times 10^{18}\)
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a 0.15 kg baseball thrown at 100 mph has a momentum of 6.8 kg·m/s. if t…
$7.8\times 10^{-29}\,\text{m}$
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assume an electron in the ground state of the hydrogen atom moves at an…
\(1.16\times 10^{-9}\ \text{m}\)
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1. true or false: a community can undergo changes to the resident dinin…
1. True 2. Staff - centered 3. Bananas, prune juice, and potatoes 4. Buffet - style, family - style, and restaurant - style 5. To make less strict
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how can a change in technology affect scientific knowledge? it makes in…
It leads to changes in existing scientific information.
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13 you have been put in charge of coming up with an ideal type of conce…
B. many people together, performers singing, dancing, crowded stadiums and arenas
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the statements below make persuasive appeals to the reader about the da…
- "Noise pollution disrupts the natural sounds of the world" → Appeals to Logic (Logos) - "If you pollute, you should be thrown into prison" → Appeals to Ethics (Ethos) - "Polluti…
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the approximate distance between mars and earth is about 1.32 × 10^8 mi…
\(708\) seconds
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what is the de broglie wavelength of a 11.7 g hummingbird flying at 105…
\(1.20\times 10^{-31}\)
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what is the de broglie wavelength of a 11.7 g hummingbird flying at 105…
\(1.21\times 10^{-33}\ m\)
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1 a man stood upon a railroad bridge in northern alabama, looking down …
C. He is going to be executed
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1 a man stood upon a railroad bridge in northern alabama, looking down …
A. They are unsure of what is going to happen next.
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what is the frequency of light having a wavelength of 731 nm? what is t…
- Part 1: The frequency of light with wavelength \(731\space nm\) is \(4.10\times 10^{14}\space Hz\) - Part 2: The wavelength of radiation with frequency \(1.97\times 10^{9}\space…
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1 a man stood upon a railroad bridge in northern alabama, looking down …
A. Alabama
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in a story of the red cross, why does the author provide a first - hand…
to show a group of people who Clara helped during a disaster
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get to know illustrator quiz what does the menu bar in adobe illustrato…
Access to commands, settings, and panels
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6. which of the following is a sign or symptom associated with dysphagi…
6. Clearing the throat frequently 7. FALSE 8. It can indicate adequate or inadequate protein consumption 9. Direct observation 10. 50 percent
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the results of a short may include: a) high voltage drop b) a motor tha…
D. A blown fuse
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an example of a high resistance fault is: a) a blown fuse b) corrosion …
D. both A and B
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an unplanned open may cause higher than normal current flow. a) true b)…
B. False
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1. which of the following tools does the american society for parentera…
1. Bioimpedance Analysis 2. Encourage him to continue to eat and allow him more time 3. Trouble recognizing food on their plate 4. Mini Nutritional Assessment (MNA) 5. Find out th…
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an example of an unplanned open is: a) an open switch b) a corroded bat…
B. a corroded battery cable
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read the excerpt from its our world, too!: young people who are making …
describe to readers an environment where people work together.
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what is the authors purpose in \save the coral reefs\? select two optio…
- to convince readers that practices that destroy coral reefs must be stopped - to inform readers about how the coral reefs are being destroyed
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three coplanar forces are exerted on an object which is at rest. two of…
B. \(56.6N\)
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21. what is the water content of a healthy nail? a) 5 to 10 percent c) …
21. C) 15 and 25 percent 22. A) 1/10 to 1/8 inches (0.25 to 0.32 cm) per month 23. B) the distal phalanx 24. D) a thicker nail plate 25. A) acorn
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12. which of the following statements best describes the lunula? a) it …
12. D) It is the whitish, half - moon shape under the nail plate’s base. 13. C) The cuticle is the dead tissue stuck to the nail plate, whereas the eponychium is the living skin u…
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why are hunting regulations passed? a to appease the anti - hunting pop…
B. to establish safety guidelines for hunting
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read the excerpt from \a case for waaawaatesi.\ its not just owls. its …
The excerpt uses examples of vulnerable animals, such as confused sea turtle babies, to make readers feel sympathetic.
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c. separate those powers! draw a line connecting each branch to the pow…
10. Connect to The Legislative Branch. 11. Connect to The Executive Branch. 12. Connect to The Judicial Branch.
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1. what can raise the risk of suicide in older adults with depression? …
1. Losing someone they care about 2. Report the signs to your supervisor immediately 3. Help them set small, realistic goals
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after reading the openstax reference pages, use the drop - down menus t…
1. Is accurate and precise 2. Is not accurate but is precise 3. Is neither accurate nor precise 4. Is accurate and precise
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how can bystanders be helpful to you while you are checking the scene? …
All of the above.
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(4.1.g) midterm an infant who is in cardiac arrest will have— no signs …
No signs of life and no pulse.
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(4.1.g) midterm an important guideline to follow when giving care for a…
All of the above.
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help refers to the position you should assume in cold water. what does …
D. heat escape lessening posture
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two duck hunters are seated back - to - back in a boat. how large is th…
A. 180 degrees
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when should a hunter wear a fall - arrest system? a when the hunter is …
C. whenever the hunter is off the ground
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what is the effect of alcohol on the skills and abilities needed to hun…
D. Alcohol impairs vision.
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three hunters are hunting in a group, side by side. who needs to be awa…
D. all three of the hunters
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you stumble in the field. the barrel of your firearm dips into the grou…
A. Unload the firearm.
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when should a firearm be unloaded? a when crossing a fence b when calli…
A. when crossing a fence
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numeric 1 point a soccer ball is kicked from the ground with an initial…
\(5.63\)
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numeric 1 point a soccer ball is kicked from the ground with an initial…
\(126.56\)
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a soccer ball is kicked from the ground with an initial upward velocity…
\(2.81\)
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value: 2 how did stalin create the first communist state in russia? ○ a…
d. All of the above.
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2. grabbing the front brake or jamming down on the rear brake: * can ca…
Can cause the brakes to lock.
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if solvents are not thoroughly wiped off of base metals, what hazardous…
phosgene gas
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what are some types of information that can be found on a material safe…
hazardous ingredients, fumes and gases hazards, requirements for personal protection
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all welding power sources should be grounded. true false
True
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when selecting the paint for the walls in a welding booth, the paint be…
True
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what is needed to reduce smoke hazards? a large fan big air filters ade…
adequate ventilation
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what is another dangerous gas that forms in the immediate area surround…
ozone
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model 2 - six modes of disease transmission 8. model 2 illustrates seve…
8. a. Airborne, vector, contact, sexual, bloodborne, foodborne or waterborne b. Airborne, foodborne or waterborne, bloodborne, sexual 9. a. Mosquito (assuming the vector - like in…
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welding machines must be in a well - ventilated area with nothing obstr…
True
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(3.1.c) cardiac emergencies: quiz cpr performed on an adult should incl…
About 100 per minute.
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which one of the following statements concerning the moment of inertia …
The moment of inertia depends on the angular acceleration of the object as it rotates.
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(3.1.c) cardiac emergencies: quiz cpr performed on a child should inclu…
More than 100 per minute.
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current attempt in progress which one of the following actions will tak…
Its potential energy will decrease.
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current attempt in progress an object is rolling, so its motion involve…
The total mechanical energy is equal to the sum of the translational and rotational kinetic energies plus the gravitational potential energy of the object.
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(3.1.c) cardiac emergencies: quiz possible points: 1 a middle - aged ma…
Angina pectoris
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question 9 what can particulate matter be compared to for size comparis…
- Question 9: household dust particles - Question 10: False
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in this lesson youll take a deeper look into the case of tiffany green …
The hospital gives a dose greater than the safe dosage range, The hospital gives a dose less than the safe dosage range.
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what is the most common gas produced by welding electrodes as they burn…
carbon dioxide
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(2.2.c) checking the person: quiz when would you not want to transport …
When the victim has or may develop a life - threatening condition.
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(2.2.c) checking the person: quiz when blood flow is directed away from…
Look pale, ashen or bluish and feel cool and moist.
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(2.2.c) checking the person: quiz the check step in check—call—care is …
Consciousness.
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(2.2.c) checking the person: quiz an important guideline to follow when…
Do no further harm.
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question 26 marcia is an electrical engineer who is testing the voltage…
\(21 - j\) volts (the fourth option)
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(2.2.c) checking the person: quiz an easy way to tell if a victim is co…
Tap the victim and shake the victim’s shoulder.
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question 7 (mandatory) (10 points) listen which of the following is the…
Pulmonary edema
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(2.2.c) checking the person: quiz a victim who can move all body parts …
Allowed to continue on his or her way, since nothing is wrong.
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question 8 (mandatory) (10 points) cystic medial necrosis of the aorta …
Marfan syndrome
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answer each question. please note: you can answer each question only on…
\( 50\)
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select the correct answer from each drop - down menu. when you look at …
sunspots
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question 4(multiple choice worth 4 points) (04.01 lc) which of the foll…
Sedimentary rocks only
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6: which is an example of danger? a eating plants and fruits b leaving …
C. playing football without a helmet
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newtons third law of motion states that for every action, there is an e…
For every action, there is an equal and opposite reaction.
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question drag the tiles to the correct boxes to complete the pairs. mat…
stars that go through mass ejections or flares → eruptive variables stars that go through explosive changes → cataclysmic variables stars that change in radii as part of the aging…
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read the excerpt from kennedys inaugural address. what is the main type…
an ethical appeal to demand that the communists help around the globe (This option is incorrect. The correct answer is that it is an ethical appeal emphasizing doing what is right…
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there are four types of physical hazards. which of the following is one…
Radiation
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women were recruited for jobs vital to the war effort on the home front…
Attitudes about the role of women in the workplace needed to change.
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read the paragraph about espionage. governments use spies to find out s…
Spying is a necessary but ethically uncertain practice that forces nations to balance security with trust.
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4. which layer of the atmosphere contains weather?
The troposphere.
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test your understanding of newtons second law of motion. imagine you ar…
The empty wheelbarrow will move faster.
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which structure is at work when the body deals with reflex actions? the…
the spinal cord
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question 8 the majority of plant proteins are complete protein sources.…
B. False
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question 9 sunflower seeds and oatmeal together make a complete protein…
True
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excess protein can put strain on the kidneys. true false
True
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the sympathetic and parasympathetic nervous systems are both part of wh…
the autonomic nervous system
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which vitamins are fat soluble? a, c, d and e a, c, d and k c, d, e and…
A, D, E and K