物理
运动学、受力分析、电学与方程推导。
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read the claim below. the most important medical advance of all time wa…
Penicillin, the first widely used antibiotic, has saved millions of lives around the world.
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read these sentences from a famous speech made by president roosevelt i…
the attack on Pearl Harbor
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which two statements explain reasons to use a computer program to encod…
A. Only authorized users can use these data. D. The encoding makes digital data more secure.
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question 9 of 10 what might happen to personal information when it is t…
C. It might be accessed by someone who was not the intended recipient.
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andrew likes to purchase his school supplies online. what are two advan…
A. Because the information is sent quickly, he can receive his order more quickly. B. All his personal information is sent digitally and does not change when transmitted.
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select the text that has a more objective tone. in an effort to relieve…
The first text (the one starting with "In an effort to relieve Union forces...") has a more objective tone.
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css is responsible for what in building a website? select the one choic…
1. Style
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blank are used to choose which html element to style and blank determin…
2: selectors, properties
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what animal was used to transport goods across the sahara desert? horse…
camel
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what are two reasons that digital storage of data is so reliable? a. co…
B. Memory chips do not break easily; D. Digital data can usually be recovered even if the storage device stops working.
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what is \the cloud\? a. the delivery of services and storage of data on…
A. The delivery of services and storage of data on multiple servers using the Internet
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which advantage of stored digital data could also be a disadvantage? a.…
A. Stored digital data can be copied perfectly time after time.
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which name is given to the operating system running on a virtual machin…
Guest
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when a file is moved or copied between file systems, it keeps the previ…
False
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compared to stored analog data, what is a disadvantage of stored digita…
B. They are vulnerable to hackers and viruses.
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which of these is a security feature of mobile devices? acceptable use …
Remote wipe
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cloud services allow users to store data and programs on which storage …
Remote servers
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why can a digital signal send a message over a very long distance more …
B. The digital signal is less vulnerable to noise and more likely to arrive intact.
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which pair of html tags are responsible for containing all visible cont…
4. `<body></body>`
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html is reponsible for what in a website? select the one choice that be…
1. Defining the structure and content
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which html tags are used to create sections of content? select the one …
1: `<div></div>`
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what is the proper way to create an html paragraph tag? select the one …
2.
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which pair of tags is responsible for containing information about an h…
1: `<head></head>`
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a mapped drive provides a shortcut to a network computer location, allo…
True
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which types of permissions combine to form the effective permissions of…
Explicit permissions, Inherited permissions
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the half - life of a certain isotope is 70 years. a. given an initial a…
a. \(A(t)=Ae^{-0.010t}\) b. \(160.940\)
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why are networks of cables not used to send information from a remote c…
D. The information needs to travel only a short distance.
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which two options are reasons that electromagnetic waves can be used ef…
A. They can travel through either air or other types of matter, D. They require no wires to carry information.
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which two statements describe how ultrasound technology produces an ima…
A. An image is created based on the amount of time it takes for a sound wave to return. C. Tissues in the baby’s body reflect high - frequency sound waves.
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what are two reasons why a home computer scanner requires electromagnet…
A. Visible light needs to reflect off an object and be captured by a charge - coupled device. D. The charge - coupled device contains a silicon chip that releases electrons by the…
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what is the difference between a markup language and a programming lang…
2 is wrong because programming languages are used to create apps. Answer 3 is wrong as some programming languages (e.g., JavaScript) can be used in browsers. Answer 4 is wrong as …
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what are some of the things you can do to slow down the physical and co…
Some things you can do to slow down the physical aging process are regular exercise and a balanced diet. Some things you can do to slow down the cognitive aging process are engagi…
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which of the following is the proper syntax for a css selector? answer …
1.
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which tag contains all the content to be loaded on the webpage that the…
1: `<body></body>`
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extra credit. if a dog has a momentum of 24 kgm/s as it chases a rabbit…
\( 2\space m/s \)
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wind is created when a low pressure system moves towards a high pressur…
False
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which tag contains information for the browser that doesnt appear on th…
3: `<head></head>`
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6. mrs. mcintosh has a minivan that she uses to drop her kids off from …
El camión tiene más momento.
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if you want to section off part of a web page, use the _ tag. answer 1 …
2: `<div></div>`
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what are a, b, c, & d, on this map called? tourist regions allegheny re…
Geographic Regions
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chapter 20 electricity match each material to the category of a conduct…
7. a. conductor 8. b. insulator 9. b. insulator 10. a. conductor 11. b. insulator 12. Electrons collide with atoms/ions in the conductor, increasing resistance. For constant volta…
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warm air creates a high pressure system. true false
False
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what type of climate does west virginia have? arctic humid continental …
Humid Continental
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in the photoelectric effect, an electric current forms when light strik…
D. Electrons are knocked off the surface when light strikes it because the light acts as particles.
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which area of west virginia tends to have the most rainfall? the easter…
The Allegheny Highlands because this is where clouds collide with the west side of the mountains.
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which three characteristics make a glowing piece of charcoal a blackbod…
A. The frequencies of EMR it emits depend on its temperature. C. It emits a range of wavelengths of EMR. D. It absorbs most of the EMR it receives.
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in which three ways does the pattern seen on the screen during a double…
A. There are bands of brighter light, B. The light bends around the edges of the slit, D. There are bands of dimmer light.
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which phrase describes blackbody radiation?a. light given off by an obj…
D. Light given off by an object based on its temperature
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when a piece of metal is heated to high temperatures, it begins to glow…
A. The particle model, because the metal is emitting packets of light at specific wavelengths
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which option is the best blackbody radiator? a. a red laser pointer b. …
C. The Sun
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scientific discoveries are often built on the previous findings of othe…
Atoms contain negatively charged particles. The electron has a specific mass.
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which statement correctly describes the relationship between a blackbod…
A. As the blackbody radiator becomes warmer, it emits light of shorter wavelengths.
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when light passes through a small opening in a barrier, it bends to spr…
C. It is the result of diffraction.
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beams of light undergo constructive interference when two different bea…
D. The wave model
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which of these statements is supported by the results of thomsons exper…
B. Cathode rays are made up of negatively charged particles; C. Atoms contain negatively charged particles.
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question what does css stand for? answer 1 collected style sheets answe…
B. Cascading Style Sheets
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which html tag is used to contain information that will not be displaye…
4: `<head></head>`
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what happens when electromagnetic waves cause a disturbance in electric…
D. The electromagnetic waves transfer energy.
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question in html, div stands for document _. answer 1 dividend answer 2…
3. division
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in css, what are used to create style rules for each selected html elem…
3: properties
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which type of electromagnetic wave has the lowest frequency? a. visible…
B. Microwaves
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what type of content gets created from this html tag?<img src=\http://e…
1. An image from the provided url inside the quotes.
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question what does html stand for? answer 1 hypertext markup language a…
1. Hypertext Markup Language
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what does it mean to say that an object is opaque? a. it absorbs all vi…
C. Light will not transmit through it.
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question which html tag is used to contain all content displayed on the…
3: `<body></body>`
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in css, what are used to select which html elements to style? answer 1 …
B. selectors
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a roller coaster starts from rest at point a. the mass of the cart with…
B. Point B
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content on a web page (i.e pictures, text, links) are referred to as wh…
3: elements
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question css is recognized in an html file by using which tags? answer …
1. `<style></style>`
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what does it mean to say that an object is opaque? a. it absorbs all vi…
C. Light will not transmit through it.
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question 8 of 10 which color of visible light has a higher frequency th…
A. Violet
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brown light is made up of the colors red and green. why does a tree tru…
A. It reflects red and green light.
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key terms: match the key terms from the box with the definitions on the…
1. Predict 2. Constellations 3. Geocentric 4. Movements 5. Heliocentric 6. Telescope 7. Epicycles 8. Sphere 9. Cartographer 10. Orbited Short - answer: - Ptolemy believed in the g…
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which correctly describes how the energy of a wave on the electromagnet…
A. Energy increases with decreasing wavelength and increasing frequency.
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analyzing ideas, structure, and purpose in machiavellis the prince anal…
- Those who did well under the previous leader become enemies. - The introduction of new rules and methods is hard for people to take. - Those who may do well under the new prince…
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which type of electromagnetic wave has more energy than ultraviolet wav…
B. X - rays
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as the frequency of a wave increases on the electromagnetic spectrum, w…
C. It increases.
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a brass rod is encased in aluminum. what happens to the speed of a soun…
A. Its speed increases.
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through which gas in the table will sound waves travel faster than they…
C. Methane
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two waves overlap producing a new wave that exhibits destructive interf…
C. It has a smaller amplitude than the waves that overlapped to produce it.
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which type of wave interaction is shown in the diagram? wave a wave b w…
B. Destructive interference
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a light wave traveling through air passes into a new medium. what can r…
A. The wave’s energy decreases.
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a sound wave traveling through dry air has a frequency of 16 hz, a wave…
D. \(448\space m/s\)
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which two options are examples of waves refracting? a. a voice echo b. …
C. An object appearing broken when partly seen through water, D. Light bending as it travels through glass
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which two options are examples of waves refracting? a. a voice echo b. …
C. An object appearing broken when partly seen through water, D. Light bending as it travels through glass
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summarizing a central idea there are fewer difficulties in holding here…
Hereditary principalities are easier for princes to keep and control.
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complete the following conversions. be sure to show your work. (you wil…
1. \(-45.6\) 2. \(227.55\) 3. \(100\) 4. \(212\) 5. \(41\) 6. \(278.15\) 7. \(35\) 8. \(308.15\) 9. \(-20\) 10. \(-4\) 11. \(68\) 12. \(293.15\)
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20. taking a megadose, or very large amount, of any supplement can be d…
20. True 21. Age, Gender, Activity Level 22. Fad diets are dangerous and ineffective because they often severely restrict food groups (causing nutrient deficiencies), are unsustai…
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being aware of what you share - quiz which of the following helps you a…
Privacy settings
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16. eating disorders are extreme, harmful eating behaviors that can cau…
16. True 17. True 18. False 19. True
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13. which of the following foods would all vegetarians refuse to eat? 2…
13. chicken 14. gluten 15. high blood pressure
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10. people who eat mostly or only plant based foods are called mark onl…
10. vegetarians 11. Binge eating disorder 12. herbal supplements
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a. people who think they need to lose weight should mark only one oval.…
7. consult a doctor 8. eating a large amount of food in a single sitting 9. break the cycle of binging and purging
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4. the process by which your body breaks down substances and gets energ…
4. metabolism 5. \(1/2 - 1\) lb/week
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select the best answer for each question. 1. the main reason for follow…
1. B. Ensure food safety, personal safety, and professionalism 2. B. Open - toe sandals 3. B. To keep it out of the way and prevent contamination 4. B. Apron 5. B. It can harbor b…
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1. email * jancarlo gonzalez banegas 2. what is a measure of body weigh…
2. BMI 3. body composition
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which type of rock are fossils found? igneous metamorphic sedimentary
Sedimentary
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extreme heat and pressure creates a ____________ rock. metamorphic mine…
Metamorphic
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rock that has been changed by heat and pressure
Metamorphic Rock
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30. empty disposable r134a refrigerant containers should be: disposed o…
Disposed of according to J2196