物理
運動學、受力分析、電學與方程推導。
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a less massive object m and a more massive object m are interacting wit…
equal to
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object c and object d are interacting with each other. both objects are…
A. the force ($F$) from C on D and the force from D on C
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in the big bang model, which describes a universe that will stop expand…
closed
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which possible outcome for the universe is shown here?
flat
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question 7 of 10 why did welty choose to use short sentences and a quic…
A. To reflect Marian's emotional state as she gets away from the old women
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which would cause the universe to collapse in on itself to make a close…
force of gravity
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question 6 of 10 how does the use of complex and detailed sentences aff…
C. It slows down the pacing and forces the reader to pay more attention.
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lorena is a farm hand for the summer. her supervisor asked her to take …
Heat, Vibration, Noise
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what is the origin of cosmic background radiation? it is emitted by sta…
It is a remnant of the Big Bang.
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what is the temperature (in kelvin) at absolute zero?
\(0\) K
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which of the following is not evidence of the big bang? redshifted gala…
Observations of the beginning of the universe
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maxine uses her face to unlock her smartphone. what kind of technology …
artificial intelligence
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as a cold front passes a florida weather station, which changes will us…
Pressure rises and temperature falls.
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which type of weather front is shown? * cumulonimbus clouds cool, dry a…
cold front
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which type of front extends northwest from location y? * 20 points warm…
cold front
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a conveyor belt moves a 40 kg box at a velocity of 2 m/s. what is the k…
\(80\space J\) (the second option)
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the type of front represented at the boundary between the cold air mass…
occluded front
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if the front at ground level is moving toward city b. which type of wea…
warm front
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as sound moves through matter, if the density of the material increases…
decreases
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waves with longer wavelengths travel at greater speeds in a material th…
longer; refracts; shorter
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what do you need to do in order to increase or decrease your body fat p…
D. Strike the right balance between the calories you consume and the calories you burn.
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which of the following should you do if your accelerator is stuck? pump…
Shift to Neutral.
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what does bmi (body mass index) attempt to measure? a. body fat percent…
D. Weight
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a)une pharmacienne ajoute 50,0 ml deau distillée à 42,0 g dun médicamen…
39,6
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your bone structure, metabolism, and body fat distribution all contribu…
C. body type
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which of the following is a lifestyle practice that can improve your qu…
A. Managing stress effectively.
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how can you tell if your car is overheating? your temperature gauge is …
Your temperature gauge is moving into the red or "H" zone.
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what should you do if your brakes fail? put these tactics for stopping …
1. Try to rebuild fluid pressure by pumping the brakes. 2. Downshift into the lowest available gear. 3. Gradually apply the parking brake. 4. Carefully scrubs your wheels against …
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a skier with a potential energy of 137,200 j waits on top of a ski jump…
70 kg
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a roller coaster train with a mass of 500 kg stops at the top of a hill…
\(539,000\space J\) (the fourth option)
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question 6 listen what force pulls a car downhill when you are driving …
B. gravity
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consider the following scenario: the truck in front of you splashes mud…
D. windshield wiper
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what level of electric vehicle charger is what most electric car owners…
B. level 2
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explain why the graph below represents the relationship between the sta…
The graph shows a negative relationship. As the state of matter changes from solid to liquid (and potentially gas), the amount of thermal energy (required for the phase change in …
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the so - called indian wars were bloody conflicts between u.s. soldiers…
- Report on the Condition of the Indian Tribes: Congress decided to ask Native Americans to give up their ancestral lands and move to faraway reservations in return for peace. - B…
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excretory system show what you know... 1. what is the main function of …
The lungs excrete carbon dioxide.
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question 6 of 10 an effective plotline that moves the story forward sho…
D. Foreshadowing that hints at what's coming next
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excretory system show what you know... 1. what is the main function of …
3. Skin 4. Carbon dioxide
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what was significant about the battle of lexington? a. minutemen faced …
B. Minutemen opposed British troops for the first time.
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the colonists reacted angrily to the tea act because they thought it ○ …
D. was a way to make them accept British taxes.
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excretory system show what you know... 1. what is the main function of …
2. Urethra 3. Skin 4. Carbon dioxide
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what two countries were battling during the french and indian war? grea…
- **Question 1**: Great Britain, France - **Question 2**: Treaty of Paris of 1763 - **Question 3**: Treaty of Paris of 1763
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data analysis #8 (10 points) base your answers to questions 1 and 2 on …
| Location in the Stream | Distance from the Beginning of the Stream at Point A (km)| |---|---| | B | 25 | | C | 100 | | D | 150 | | E | 200 |
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data analysis 83 base your answers to questions 1 and 2 on the graph be…
| Location In the Stream | Distance from the Beginning of the Stream at Point A (km) | |----|----| | B | 25 | | C | 75 | | D | 125 | | E | 200 |
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analysis #8 (10 points) your answers to questions 1 and 2 on the graph …
- B: 25 km - C: 75 km - D: 125 km
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miko is blowing up balloons for her little sisters birthday party. one …
D. When the balloon pushes on the leaving air, the leaving air pushes back on the balloon, so the balloon experiences a net force.
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what kind of energy involves the flow of charged particles? thermal rad…
C. electrical
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arysha enjoys playing lacrosse on the school team. suppose arysha throw…
A. \(0.14\) kg
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jerome has a tow truck, and he is in charge of moving several vehicles …
B. The greater the vehicular mass, the more force the tow truck will use.
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a warm - up routine prepares the entire body for vigorous exercise, but…
B. muscles
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andrew plays trumpet in the concert band. he holds the trumpet still at…
C. The trumpet starts moving because a net force overcomes the trumpet's inertia.
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which of the following activities provides a good cardio - respiratory …
A. Swimming laps
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1 a consists of a period of non - strenuous activity that slowly prepar…
D. warm - up
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which statement best describes the work and energy in these examples? e…
The gas and food are examples of energy.
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introduction to energy quiz complete four people make observations reco…
They involve changes in energy.
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introduction to energy quiz complete how does work affect energy betwee…
Work transfers energy.
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if you pour equal amounts of scalding hot water into different metallic…
Warmest: \(750 - g\) aluminum cup, Middle: \(500 - g\) aluminum cup, Coolest: \(500 - g\) silver cup
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introduction to energy quiz complete which statement best defines the r…
Work can transfer energy between objects and cause a change in the form of energy.
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which term describes the energy an object has because of its motion? po…
kinetic
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introduction to energy quiz complete 1 2 gabriel is performing an exper…
They will both be recorded in joules.
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4 why is it a good idea to explore the health and fitness field in term…
D. All of the above.
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a yellow ball with a mass of 2 kg is rolling across the floor at 3 m/s.…
The red ball has greater kinetic energy, because it has a greater mass.
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all of the following could be considered health and fitness related car…
E. a financial consultant
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3. (highlight the correct answer) the u.s. workforce is made up of____p…
3. C. 150 million 4. A. Occupational Outlook Handbook 5. C. White - collar worker 6. D. All could be included in human resources.
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evaluating a bicycle going uphill bridget is riding her bicycle up a hi…
Bridget is transferring energy to the bicycle. The bicycle is using energy to do work. Bridget has kinetic energy. The bicycle has potential energy. The bicycle has mechanical ene…
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3. true or false. there are greater numbers of both younger and older e…
True
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classifying energy classify the forms of energy described in each scena…
kinetic; light (radiant)
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3. true or false. there are greater numbers of both younger and older e…
4. b. Flexplace 5. d. Inclusion
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which of the following actions will minimize air pollution? turning dow…
carpooling
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in a collision, the first thing you should check for is: broken glass d…
injuries
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a catapults lever holds a cannonball. the lever is attached to a tightl…
elastic
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the dumping of trash and waste on land and water is known as: recycling…
C. littering
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fill in the term that best completes the statement. work transfers betw…
energy
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which statement best defines energy? energy is the force applied over a…
Energy is the ability to do work.
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which of the following should be recycled and kept out of the water sup…
oil filters
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identifying kinetic energy which image best represents an animal exhibi…
The last image (the running animal)
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which one of the following is an example of someone demonstrating a dem…
Lisa places a sign of a current political candidate in her front yard.
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read the text. 1 although the use of wind energy has flourished in the …
the use of wind energy from ancient times to modern day
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why shouldnt discarded tires be stockpiled? they should be buried inste…
They're a fire hazard and breeding ground for mosquitos.
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8. if 335 g of water at 65.5 ^{circ}c loses 9750 j of heat, what is the…
\(58.5^{\circ}C\)
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review the first and second paragraphs. test anxiety 1 anxiety is a bas…
They describe a general phenomenon and then a specific version of it.
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process of clearing drugs or toxins from the body doxorubicin sensitiza…
excretion
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drug that alters sensory experiences and produces hallucinations methad…
hallucinogen
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practice it drug that activates the central nervous system, such as amp…
C. stimulant
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read the text. test anxiety anxiety is a basic human emotion characteri…
the main characteristics of test anxiety
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addictive drug that has pain - relieving and sleep - inducing propertie…
heroin
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1. what is a force? a. the direction of an objects state of motion b. s…
B. something that changes an object's state of motion
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drug, such as alcohol and barbiturates, that dampens central nervous sy…
depressant
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drug dependence accompanied by signs of physiological dependence like w…
drug addiction
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physical habituation to a drug where increased amounts are needed to ac…
tolerance
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practice it cluster of symptoms associated with abrupt withdrawal from …
withdrawal syndrome
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person who abuses more than one drug at a time polyabuser hidden observ…
polyabuser
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which layer of the epidermis is found in only a few areas of the body? …
C. stratum lucidum
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practice it sleep - wake disorder characterized by repeated episodes of…
sleepwalking disorder
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practice it temporary cessation of breathing during sleep caused by a s…
sleep apnea
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sleep - wake disorder characterized by sudden unexplained \sleep attack…
narcolepsy
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proposition that dreams represent the brains attempt to understand elec…
activation - synthesis hypothesis
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practice it pattern of fluctuations in bodily processes that occur regu…
circadian rhythm
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what happened to many jewish people living in arab countries after isra…
They faced violence and were forced to leave their homes.
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review the sixth and seventh paragraphs. 2 myopia typically begins in c…
They both discuss what researchers have been exploring and finding about myopia.