Física
Cinemática, análisis de fuerzas, electricidad y razonamiento con ecuaciones.
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calculate the kinetic energy of a 3kg ball with velocity of 4m/s 48 j 4…
\(54J\)
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calculate the kinetic energy when mass = 6kg and velocity = 5m/s 75 j 3…
75 J
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what is the kinetic energy when mass = 4kg and velocity = 3m/s? 12 j 18…
B. \(18\space J\)
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find the density of a block with mass = 150g and volume = 30cm³ 120 g/c…
$5g/cm^{3}$ (the fourth option)
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calculate the density when mass = 90g and volume = 15cm³ 6 g/cm³ 105 g/…
6 \( g/cm^{3} \) (First option)
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**instructions:** you are a disease detective working for the maryland …
1. Communicable. 2. Could be strep throat (symptoms and transmission via respiratory droplets at a party). Or COVID - 19 (symptoms, close contact, no masks). 3. Wearing masks, not…
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name the other ways that oxygen is removed from the air.
Respiration and combustion.
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what role did patrons play in the renaissance? they organized peasant l…
They funded artists and scholars.
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which of the following describes an outcome variable (dependent variabl…
a variable that changes in an experiment due to another factor
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三.判断题(共18题,共36分) 49.when the oven (drying box) is heated, the door can …
错误
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一.单选题(共20题,共40分) 48.the evacuation door for the safety exit of the expe…
B. Open outward
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47.general preparatory activities are mainly some body physical exercis…
A. Slow walk
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一.单选题(共20题,共40分) 46.which of the following meets the \four first and fo…
B. Light first, serious after
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a 1000 n person is standing on an ordinary bathroom scale in an elevato…
a. The scale should read approximately \(1102\space N\) b. The scale should read approximately \(898\space N\)
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一.单选题(共20题,共40分) 45.in the laboratory, (). (2分) ○a.using knife switches…
C. Fixed power outlets must not be disassembled and rerouted without permission
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一.单选题(共20题,共40分) 43.confirmation of the equipment or line without elect…
B. Check normal electroscopes
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三.判断题(共18题,共36分) 41.in the use of electromagnetic current transformers,…
Correct
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二.多选题 (共12题,共24分) 40.what regulations must be observed for work on high…
A. Fill in a work ticket or verbal call, B. At least two people should work together, C. Complete organizational measures and technical measures to ensure the safety of staff.
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三.判断题 (共18题,共36分) 38.when an electric appliance or line is on fire, it …
Correct
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3. upon reaching the top of the building, the elevator accelerates down…
The force the floor exerts on the passenger is \(578\space N\)
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三.判断题(共18题,共36分) 36.in the event of a poisoning accident, rescue worker…
错误
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一.单选题(共20题,共40分) 35.which of the following is correct when testing low …
B. One - hand operation is safer than two - hand operation
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三.判断题(共18题,共36分) 34.during the hot summer months, exposed toe shoes can…
错误
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laboratory entrance examination 2025 总共50题共100分 二.多选题(共12题,共24分) 帐号:姓名:…
A. Properly increase the humidity in the workplace, B. When carrying out special dangerous experiments, the operator should first touch the metal grounding bar installed in the sa…
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select the statement(s) that define an outcome variable. the variable t…
The variable that is measured in the experiment. The variable that responds to changes made by the test variable (independent variable).
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二.多选题(共12题,共24分) 32.what are the main factors affecting the degree of c…
A. The size of the current, B. The human body resistance, C. The length of the power - on time, D. The frequency of the current, F. The electric current through the human body.
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二.多选题(共12题,共24分) 31.what are the main sources of fire for electrical fi…
A. Electrical sparks, D. Electrothermal high temperature (high temperature caused by large current in the conductor, or magnetic loss in the electromagnetic mat erial, or electric…
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三.判断题(共18题,共36分)账号:姓名:考试时间:60分钟剩余时间:40分59秒总共50题共100分 30.one of the main…
Correct.
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drag and drop the words or phrases that accurately complete the paragra…
hypothesis
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一.单选题(共20题,共40分) 29.the basis of general biomedical laboratory zoning i…
C. Probability Partitioning of Experimental Factor Contamination
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一.单选题 (共20题,共40分) 27.if the wire socket is damaged, it will cause ( ). …
C. electric shock damage
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三.判断题(共18题,共36分) 26.sites for storage of hazardous wastes should be mad…
Correct
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keep the flashlight on the longest.\ the test variable (independent var…
Independent variable: brands of batteries. Dependent variable: number of hours.
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of snow cones. the different color snow cones are the variable. the var…
The first blank: constant (assuming other factors like size, initial amount of snow - cone are kept the same). The second blank: test (independent) (since the color is what is bei…
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23.the person with electric shock appeared mild coma and could acupunct…
A. Sanyinjiao
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三.判断题(共18题,共36分) 21.when burned, the correct first aid method should be…
Correct
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which of the following best defines test variable (independent variable…
The variable that is purposely changed in an experiment.
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三.判断题(共18题,共36分) 18.the purchase of laboratory radioactive isotopes and…
Correct
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the graphs below model two transverse waves that maya created with a ba…
The amplitude is greater for Wave 1. The wavelength is greater for Wave 1. The frequency is greater for Wave 2.
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which source would be most reliable for researching the most effective …
an article from a university that uses advanced statistics to determine the total calorie loss for 10 different physical activities
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which keywords would be most effective to find research on the developm…
aging AND research AND cure
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multiple choice question which statement best defines the term tension?…
the force that a string or rope exerts
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read this excerpt from \a visit from the goon squad.\ whatever the reas…
His confidence is transformed by the crowd's response.
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which benefit results from making informed healthcare decisions? every …
Individuals are empowered to take responsibility.
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read the following excerpt from jackie robinsons letter to president ei…
Governor Faubus's calling of the Arkansas National Guard to prevent nine African American students from entering Little Rock Central High School, despite the US Supreme Court's ru…
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which material is a common indoor air pollutant? smog natural gas vehic…
natural gas
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in what way did the sedition act impact american citizens? a it increas…
D. It limited their ability to criticize the government.
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1) what are the three types of muscles in the human body? 1 - 2 - 3 - 2…
1. Skeletal, Smooth, Cardiac 2. Contraction, Relaxation 3. Tendon, Ligament 4. Muscle fibers (Myofibers) 5. 1669 (approximate - context dependent), Luigi Galvani and Alessandro Vo…
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which benefit results from making informed healthcare decisions? every …
Individuals are empowered to take responsibility.
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hudson is shopping for a glucose monitor for his grandmother. where wil…
the health department
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tessas friend milo offers her a ride home. tessa does not like riding w…
Milo texts while driving.
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which shows the process of making informed healthcare decisions? awaren…
awareness—choices—results
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evander is competing in a bodybuilding competition and wants to gain ex…
Is the source credible?
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ratosha is thinking about getting a flu shot. which statement describes…
Her school nurse recommends the flu shot.
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isabellas current cardiologist is moving to a different state, so isabe…
The cardiologist is not recommended by her current cardiologist.
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sarahs doctor recommends that she get an mri to help diagnose the cause…
The facility accepts most health insurance policies but not Sarah's.
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choosing a healthcare provider miralees dentist is retiring and closing…
- What services do you provide? - What certifications do you hold? - What health insurance do you take? - How many years have you been practicing?
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what is the capacity for the container below? (assume a = 15 in. give a…
\(14.6\)
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mining is the extraction of minerals and metals from earth. while minin…
Lead
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the prefix kilo - means which of the following? one thousand one - thou…
one thousand
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the ability to estimate capacities is an important skill to develop. wi…
2 mL
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what factor determines the mining method chosen for mineral extraction?…
Geological characteristics of the area
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based on the text and the context of hays letter, how did hay want othe…
As a common - sense proposal urging imperial powers to work together to maintain peace in China so profits could keep flowing.
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precautions to take when hauling a trailer include all of the following…
letting some air out of the rear tires.
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according to the document, what is a \sphere of influence\? the area ar…
An area claimed to be reserved for investment by a certain imperial power, in China in this case.
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what primarily determines the properties of a mineral? the arrangement …
The arrangement of atoms within the mineral
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which of the following is not a characteristic of a motorcycle? being e…
being easily visible to other drivers
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evaluating health resour the doctor has just informed andreas that beca…
is up to date, explains sources of data, is an educational website, has articles written by experts
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comparing healthcare products and services ever since andreas was infor…
cost of monitor, quality of monitor, doctor’s recommendation, whether it meets his requirements
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what should you tell your mechanic before making a long - distance trip…
your expected mileage
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in the event of an unavoidable collision, the brake pedal should not be…
true
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which of the following driving habits help improve fuel efficiency? pro…
D. both A and B
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preventative maintenance may include all of the following except checki…
painting the vehicle.
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noticeable tread wear on the outside edges of a tire tread pattern is a…
underinflation.
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checking tire pressure should be performed once a month. annually. when…
D. both A and C
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what is the most precise geological term for a natural rock or sediment…
Ore
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how do these stage directions from the play provide meaning for readers…
They include details for readers about the setting of a scene.
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which system works to absorb the heat from the motor and release it thr…
coolant system
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a penny can be used in which part of vehicle maintenance? checking oil …
checking tire tread depth
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red fluid under your vehicle may be a sign of transmission fluid leakin…
True
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which of the following is true about driving on \bald\ tires? they are …
D. both A and B
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question 1 what criteria must geologists consider when deciding to extr…
Both quantity and market value
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which tool is used to check tire pressure? tire gauge speedometer wrenc…
tire gauge
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fluids that must be checked as part of your maintenance program include…
gasoline.
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how can you prevent injuries in crashes? by wearing safety belts by sit…
D. all of the above
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how do head restraints protect the driver in impacts? they protect the …
C. both A and B
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using safety belts is the only way to prevent injury in crashes. true f…
B. False
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people may get injured in crashes when they stop their vehicles too qui…
True
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what information is usually gathered during vehicle crash tests? the ca…
what happens during crashes
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how can air bags also cause injury? they can hit the driver with a huge…
They can hit the driver with a huge force.
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how do airbags prevent injury? they spread the crash forces over the up…
C. both A and B
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why should infants and young children be in rear seats? they can be sev…
They can be severely injured from airbag impact.
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how do safety belts prevent injury? they allow passengers to slow down …
all of the above
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question 7 (1 point) you are caring for a 50 year old client who is wea…
B. Clear fluids
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10 multiple choice 2 points which of the following is an example of a s…
Bald eagle
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1 multiple choice 2 points what does the term \poaching\ refer to in wi…
1. The illegal hunting or capturing of wildlife 2. It's too hot or too cold for them 3. Establishing protected areas and national parks
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question 1 (1 point) listen which of the following put an individual at…
A. B and C
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only multi - lane roadways are included in the hts. true false
B. false
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which of the following groups enforce traffic laws? local police depart…
D. all of the above
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6. which earth spheres interact when rain falls on a mountain and runs …
6. A. Geosphere and Hydrosphere 7. A. Biosphere and Atmosphere 8. A. Cryosphere and Hydrosphere 9. A. Geosphere and Atmosphere 10. A. Biosphere and Atmosphere