物理
运动学、受力分析、电学与方程推导。
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drag each tile to the correct box. match each description to a movement…
1. an artistic movement that emphasized the emotional rather than the rational side of humans → romanticism 2. a movement in which philosophers developed ideas of democratic princ…
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which best describes why heat pumps are reversible? they can heat and c…
They can heat and cool an indoor space.
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read each item. then click on the primary purpose of the item. 8. scien…
a. inform
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what are the applications of ai in code performance analysis? improving…
All of the options (Improving memory - efficient data structures, Monitoring compliance with coding standards, Suggesting algorithm enhancements, Analyzing runtime behavior and me…
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which refers to the process of going against the natural flow of heat a…
refrigeration
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select the true statements about the process of learning al. ai program…
A. AI programs need data to create output, C. AI relies heavily on algorithms to process data and create output.
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after the crank turns 3.5 times, what will be the position of the pisto…
C. at the bottom
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comparing systems what do heating systems, cooling systems, and heat en…
They transfer thermal energy.
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which of the following are popular college majors/emphasis areas for co…
B. computer science, C. statistics, D. data science
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in this diagram of a simple gearbox, the gear ratios for each pair of g…
B. \(20\) rpm
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describing refrigeration systems which statement describes refrigeratio…
Refrigeration systems move the thermal energy from the building to another place.
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9. according to the text, why is gravity an attractive force? * a. it p…
9. B. It pulls objects toward other objects 10. D. They would walk like they were on springs
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identifying thermal energy sources which energy sources can transfer th…
air, the ground, water
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7. what is the role of light in relation to black holes? * a. light can…
7. C. Light cannot escape black holes 8. A. Increased speed and distance
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describing thermostats in a thermostat, what property of the bimetallic…
The two metals absorb different amounts of thermal energy.
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5. how does the mass of an object influence its gravitational field? * …
5. C. Larger mass means a stronger field 6. D. It would be pulled toward the black hole
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37 how many circuits or loops does the human cardiovascular system have…
Two: one between heart/lungs and one between heart/body.
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read each item. then click on the primary purpose of the item 6. to red…
b. persuade
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who first demonstrated the computer mouse? microsoft alan turing dougla…
Douglas Engelbart
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a handheld router can be used to make a a dowel. b spindle. c miter joi…
D. rabbet joint.
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36 what is the outermost membrane surrounding the brain and spinal cord…
dura mater
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explaining the role of combustion why is combustion of fuel necessary f…
Combustion of fuel is necessary for heat engines to do work because it provides the thermal energy that creates a high - temperature reservoir. The heat engine utilizes the temper…
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3. what happens to gravity as objects get closer to a bla a. it decreas…
3. C. It increases 4. B. The area around an object where it can exert gravitational force
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what is the best way to protect computer equipment from damage caused b…
Plug equipment into a surge protector.
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what were the goals of the \paperless society\ ideal? ○ to more easily …
to more easily access and save information and to reduce waste
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1. what is a black hole primarily formed from? * a. collapsed stars b. …
1. A. Collapsed stars 2. A. They absorb all light
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which of these bits is used to bore holes in metal stock? a twist b spa…
A. twist
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how did napoleons loss in the battle of trafalgar affect europe? a. nap…
E. From that point onward, Napoleon and his forces no longer attempted to invade Britain
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alekseis family purchased a new water heater that is a heat pump. after…
Thermal energy from the air surrounding the water heater was transferred to the water.
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drag the missing word into place fossil fuels, like natural gas and, co…
oil
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which series represents the flow of thermal energy in a home with a ref…
Inside air → coolant in cooling system → outside air
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copper flashing is applied to roofs because it a prevents birds from ne…
C. is very durable.
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what is the formula for calculating the average velocity of a moving ob…
For the first question: average velocity = $\frac{\Delta d}{\Delta t}$ (the third option). For the second question: velocity (the first option).
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in the following graph, what is the objects average velocity? graph 1 5…
10 m/s
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drag the missing word into place oil in the ground, trees in the forest…
natural
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33 cerumen is another word for earwax. true or false true false
True
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32 the brain has a lot of fat in it. true or false true false
True
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which feature is the arrow pointing to? lake victoria congo river lake …
Lake Victoria
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the uppermost zone in lakes and ponds, which is close to the shore and …
D. littoral zone
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read each item. then click on the primary purpose of the item. 4. medic…
a. inform
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read the following scenario, and then answer the question. a graphic de…
the newest graphics cards, a fast processor, and a large monitor
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forests: conservation & management 4 of 5 most of the impact on forests…
Agricultural land
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in central and west africa there is a high demand for trees in the rain…
C. Deforestation
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which series represents the flow of thermal energy in a heat engine? fu…
Fuel → air inside piston chamber → piston movement
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describing the flow of energy in heat engines which series represents t…
# Brief Explanations: In a heat engine, fuel is burned. The thermal energy is first transferred to the air inside the piston chamber (due to combustion). Then, this thermal energy…
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which of the following is an example of software piracy? copying softwa…
A. copying software from work to use at home
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1 of 5 the introduction of______has caused an increase in endangered pl…
Invasive species
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which is the best definition of pan - african? people of african descen…
People of African descent have common interests and should be unified.
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it professionals have strict legal and ethical standards because of the…
the strategic role they play in an organization.
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fill the blank. in the figure of below, what distance has the object tr…
60
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which country is shaded? democratic republic of the congo egypt nigeria…
Democratic Republic of the Congo
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which devices typically generate computer output? monitor, printer, spe…
monitor, printer, speaker, projector, Braille embosser
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which region would deal with the issue of deforestation the most? sahel…
Tropical Rainforest
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fill the blank. to make a position - time graph, you plot position rela…
time
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fill the blank. the y - axis of a position - time graph represents ques…
position
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which forest type is the most undisturbed by human disruption? deciduou…
C. Boreal
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fill the blank. the x - axis of a position - time graph represents.
Time
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what is the annual rainfall per year in rainforests? 60 to 160 inches 4…
60 to 160 inches
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tropical forests can impact the weather. false true
B. True
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use the drop - down menus to complete the statement. refrigeration cool…
out of
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use the drop - down menus to complete the statement. refrigeration cool…
out of
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1. newtons second law states: force equals times acceleration velocity …
Mass
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how does information technology most benefit peoples personal and profe…
B. by making their lives more productive
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view this video which of the following is a limitation of the polygraph…
All of these are correct.
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a position-time graph shows the direction(s) the moving object has trav…
True # Question 8
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select the correct answer. which scientist is best known for presenting…
C. Francis Bacon
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what hardware temporarily stores information when software is being use…
RAM
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when the air temperature reaches the dew point, fog may form. this phen…
The altitude at which clouds will not form is below \(1.07\) mi.
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what submersible craft recovered the hydrogen bomb that fell into the m…
A. Alvin
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what was south africa like under the apartheid government? racial discr…
Racial discrimination was enforced by law.
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freshwater biomes have a. organisms adjusted to high salinity b. more d…
C. a salinity of less than 1%
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using refrigeration systems what happens to the thermal energy of the a…
Thermal energy in the building decreases.
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what happens to the thermal energy of the air inside a building when an…
Thermal energy in the building decreases.
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overfarming and overgrazing farmlands have been a major influence in wh…
desertification
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the steeper the line on a velocity - time graoh, the faster the objects…
- First statement: True - Question 5: velocity - Question 6: Yes
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what allows the bimetallic coil to turn on or off a heating or cooling …
The two metals expand differently.
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which major african river flows through egypt? congo river nile river n…
B. Nile River
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in the position - time graph, the y - axis represents a position relati…
1. True 2. True 3. True
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1. choose an issue affecting the home front such as the purchase of war…
One issue affecting the home front was Japanese internment. It led to the forced relocation of Japanese - Americans into internment camps, disrupting their lives, violating their …
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which feature is the arrow pointing to? sahara desert atlas mountains m…
Mt. Kilimanjaro
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in the free - body diagram shown above, which of the following is the g…
B. \(14700N\)
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identify each element as being part of fixed poetry or free verse poetr…
Fixed poetry: set number of lines, lines of equal length, a strict meter. Free verse: no pattern of line or stanza, structure follows emotions.
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a force that resists motion is called: a. motion. b. equilibrium. c. we…
d. friction
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which african region is shaded on the map? tropical rainforest savanna …
Tropical Rainforest
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the inertia of an object is related to its: a. mass and force. b. mass …
C. mass only.
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\it is very hard for me to farm here due to overgrazing and poor soil. …
Sahel
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how has earth changed over time? think about what you discovered when y…
The scientist might look for: - **Similar rock formations**: If the rock layers, types, and structures in Australia and Antarctica match, it could indicate they were once connecte…
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the term that means \all of the forces together on an object\ is: a. we…
d. net force.
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select the correct answer. which description indicates a problem with t…
B. Barbara exercises regularly and eats nutritious food. She is very shy and keeps to herself all the time.
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what is an apartheid system, such as the one that existed in south afri…
A. a system of laws that enforces racial segregation and discrimination
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the friction force that resists the motion between two surfaces that ar…
B. static friction.
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weight is a force that depends on mass and: a. energy conservation. b. …
B. gravity
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in general, phosphorus from animal foods is more bioavailable than phos…
True
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select the correct answer. which description shows the best balance of …
D. Terrence exercises for 30 minutes a day, eats well, and enjoys new challenges.
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what is another way to describe the process of food handling? select th…
purchasing, preparing, transporting
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select the correct answer. which list includes only lifestyle factors t…
C. knowledge of common risk factors, level of physical activity, ways of reacting to conflict
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the magnitude of the force of gravity acting on an object is a. mass. b…
d. weight
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which african region is shaded on the map? kalahari desert savanna trop…
Sahel
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which factors relate body composition to a healthy weight? select three…
age, gender, bone length
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which pair of terms are vectors? a. mass and weight b. acceleration and…
B. acceleration and force