Physique
Cinématique, forces, électricité et raisonnement par équations.
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11. a radio telescope is used to study radio waves that come from stars…
Radio waves are a type of electromagnetic wave.
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10. how should the table be changed to distinguish between mechanical a…
A. Sound waves and light waves need to change places.
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9. which statement correctly distinguishes between mechanical and elect…
C. Mechanical waves carry energy through matter; electromagnetic waves carry energy through space. (Assuming the third option is labeled C; adjust the label based on the original …
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part a which statement about electrons is true? - some electrons have a…
Electrons are much lighter than neutrons.
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to get to net zero, we must change how we obtain and use energy. in par…
Hydropower (the checkbox next to "Hydropower" should be selected) ### Question 3
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which statements are true? check all that apply. the radius of the cone…
- The radius of the cone is 9 units. - The height of the cone is 12 units. - The volume of the cone is represented by the expression $\frac{1}{3}\pi(9)^2(12)$.
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9 1.333/2 points multiple answer what does it mean if your position vs.…
- The object is moving in the negative x - direction. - The object has a negative velocity.
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8. what causes a disturbance that results in a wave?
A vibration (or oscillation) of a source (such as an object, field, etc.) that disturbs a medium (or space) and transfers energy, resulting in a wave.
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7. complete the sentence to describe what a wave is and what it does. f…
A wave is a \boxed{disturbance} that carries \boxed{energy} from one place to another.
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revised explanation now that you have learned more about types of energ…
In a chain - reaction machine, energy is transferred through a sequence of energy - form conversions and transfers. A triggering event (e.g., a falling object) imparts kinetic ene…
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reflect on the student question board at the beginning of this concept,…
Exploring energy transformations in the chain - reaction machine helps answer questions in several ways: 1. **Hands - on Observation**: Building and observing the machine shows ho…
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or low it is. the higher the frequency of a sound wave is, the higher p…
1. Top graph (2 wave cycles) 2. Second graph (3 wave cycles) 3. Bottom graph (3 wave cycles) 4. Third graph (4 wave cycles) Ordered from lowest to highest pitch.
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a hose fills a hot tub at a rate of 3.53 gallons per minute. how many h…
1.24
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affect the person listening to other peoples trauma stories? choose an …
all of these
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the exterros accessdata known file filter (kff) database can be used fo…
a. Filter known program files from view. c. Compare hash values of known files with evidence files. d. Filter out evidence that doesn't relate to your investigation.
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which of the following methods are used for digital watermarking? a. im…
b. Invisible modification of the LSBs in the file
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a commuter train travels 66 miles in 35 minutes. what is its speed in m…
113.1
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many digital picture formats use data compression to accomplish which o…
c. Eliminate redundant data.
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answer in complete sentences. 1. why cant humans travel to the earths c…
Humans can't travel to the Earth’s core because the pressure and temperature increase to extreme levels with depth (the core has millions of times atmospheric pressure and thousan…
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5. complete the passage to differentiate between longitudinal and trans…
First blank: parallel Second blank: perpendicular
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what best describes the rock cycle? a. a one - time process b. a cycle …
1. C. A continuous process that changes rocks over time 2. C. Heat and pressure
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review it! enhanced geothermal systems (egs) actively inject cool or co…
EGS have a small land footprint. EGS requires less water than a hydroelectric plant. EGS have a small emissions output.
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practice it! which of the following is a disadvantage of wind power? wi…
The infrastructure required to transport electricity is not always available in ideal windy locations.
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what is the first step when initiating a digital forensics examination?…
a. Identify needs of the examination.
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about 90% of u.s. students between kindergarten and twelfth grade atten…
1. Public schools are usually managed by local governments.: True 2. Most students go to private schools rather than public schools.: False 3. All funding for public education com…
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the national software reference library (nsrl) provides what type of re…
b. A list of MD5 and SHA1 hash values for all known OSs and applications
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steganography is used for which of the following purposes? a. validatin…
b. Hiding data
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the process of converting raw images to another format is called which …
a. Data conversion
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review it! select the statement(s) that accurately matches the word to …
Catagenesis - process triggered by an increase in heat and pressure. Coalification - process triggered by an increase in heat and pressure.
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review it! select the statement(s) that are true about crude oil. petro…
- Oil is the top source of transportation energy. - Crude oil is interchangeably referred to as petroleum. - Some oil reserves can be found in deposits near or at the surface.
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a jpeg file uses which type of compression? a. winzip b. lossy c. lzip …
b. Lossy
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in steganalysis, cover-media is which of the following? a. the content …
c. The file a steganography tool used to host a hidden message, such as a JPEG or an MP3 file
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if an application uses salting when creating passwords, what factors sh…
b. Salting can make password recovery extremely difficult and time consuming.
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when you carve a graphics file, recovering the image depends on which o…
c. Recognizing the pattern of the file header content
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review it! select the statement(s) that are true about natural resource…
- Harvesting seasons are only applicable to renewable resources. - The goal of NRM is to prevent resource depletion. - Some finite resources can be used several times.
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practice it! which of the following correctly describes why soil is con…
Soil is being depleted faster than it can naturally replenish.
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which of the following methods would likely be most successful when att…
d. Use a tool to build a password profile of the suspect to attack the password-protected file.
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portable network graphic (.png) files use which of the following types …
d. Lossless
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rainbow tables serve what purpose for digital forensics examinations? a…
a. Contain computed hashes of possible passwords that some password-recovery programs can use to crack passwords.
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in the derivation of the formula for the volume of a cone, the volume o…
B. It is the ratio of the area of the circle to the area of the square from a cross section.
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block-wise hashing has which of the following benefits for forensics ex…
d. Provides a method for hashing sectors of a known good file that can be used to search for data remnants
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review it! select the statement(s) that accurately describes renewable …
- Renewable resources can replenish at a higher rate or equal to rate of consumption. - Renewable resources can also be called a flow resource. - Renewable resources can be harves…
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which would be the most appropriate resource for identifying an unknown…
b. The NSRL
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magma, metamorphic rock, sediment, sedimentary rock, igneous rock; weat…
Left box (weathering/erosion output): \(\boldsymbol{\text{igneous rock}}\) Right box (sedimentation output): \(\boldsymbol{\text{sedimentary rock}}\)
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question 3. we have many experiences of electrostatic interaction in ou…
One example where I experienced static electricity was when I rubbed a balloon against my hair and then the balloon stuck to a wall. In order to cause what I saw, the subatomic pa…
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comparing waves complete the graphic organizer to compare sound waves a…
### Sound Waves (Left): - Require a medium to travel. - Are mechanical waves. - Longitudinal wave motion. ### Both (Overlap): - Transfer energy. - Have frequency, wavelength, ampl…
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how is sleep studied? * 1 point electroencephalograph (eeg) mri scans c…
1. Electroencephalograph (EEG) 2. MEG
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republican policies in agriculture, however, faced mounting criticism, …
10. The leading cause was the loss of foreign markets for U.S. farm products, exacerbated by American tariff policy and global excess farm production. 11. 1. Purchasing the first …
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what are \illuminated\ objects? objects that produce and give off light…
objects that REFLECT or ABSORB light
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dr. briseida wants to study the behavioral effects of a depressant type…
1. D. An Alcoholic 2. C. Jonathan had to increase the dosage of his pain medication when the old dosage was no longer effectively controlling the pain
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are luminous objects sources or receivers of light? receivers sources
B. SOURCES (assuming the options are labeled with "RECEIVERS" as one and "SOURCES" as the correct one; if the options were A. RECEIVERS, B. SOURCES, then the answer is B. SOURCES)
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the articles of confederation gave the united states a strong central g…
False ### Second Question:
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excited to see the new exhibits at the art museum, neil walked 0.5 kilo…
0.5 kilometers
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which ocean is highlighted? world map image the southern ocean the indi…
the Southern Ocean
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select the correct answer. which statement correctly describes protons?…
D. They have a positive charge and are present in the nucleus of an atom along with the neutrons
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cole was staying in a hotel with some friends. he walked 0.2 kilometers…
0.8 kilometers
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question 15 make a claim about whether or not this planet could support…
This planet could support Earth - like life if it possesses a stable atmosphere, a temperature range enabling liquid water, and a gravitational pull that can retain essential life…
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select the correct answer. which statement is true with respect to an a…
C. The atomic number of an atom is equal to the number of protons.
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2.01 guided notes - therapeutic services introduction started: feb 2 at…
A therapeutic services professional is a healthcare professional who is directly responsible for changing the health **status** of a patient over **time**.
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select the correct answer. what happens when an electron absorbs energy…
A. The electron moves from a lower energy orbital to a higher energy orbital.
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with his surfboard in hand, jim walked 260 feet in a straight line from…
260 260
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use the information given to predict the most likely consequence of ris…
B. The amount of dissolved oxygen in the ocean will decrease, potentially stressing aquatic organisms.
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orld: test 5. patrice knows that investing her own money in a start - u…
5. A. take a risk. 6. D. technology. 7. E. competitor 8. A. legal/regulatory/political
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question 18 8 points why do scientists use models like the star life cy…
Scientists use models like the star life cycle diagram or Big Bang model to simplify complex cosmic systems and processes. The universe is vast and its processes (like star evolut…
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almost 97% of all water on earth is in oceans, seas, and bays. together…
$1.338 \times 10^9$
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lesson 1.2 review know and understand 1. give one example of a risk fac…
Risk factor example: Smoking (increases lung cancer risk). Protective factor example: Regular exercise (decreases heart disease risk). ### Question 2
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francesca started biking from her house to work, covering 1.5 miles, be…
What distance did Francesca bike? 3.0 miles What was Francesca's displacement? 0 miles
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question 13 3 points how does redshift support the big bang theory? - a…
Redshift reveals that most galaxies are moving away from Earth (with farther galaxies receding faster), suggesting the universe is expanding from an initial dense, hot state, thus…
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justification for declaring war! in your own words, write three reasons…
1. **Reason 1**: Britain impressed (forcibly recruited) American sailors into their navy, violating U.S. rights and harming its maritime labor force. *Evidence*: (Example excerpt)…
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question 12 4 points drag each element into the category that describes…
- Formed by Fusion in Stars: Hydrogen, Iron - Formed by Supernova Explosions: Uranium, Gold
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match each feature of the solar system to its correct description. answ…
- Terrestrial Planets: Rocky, close to the Sun - Gas Giants: Made of gas, far from the Sun - Solar Nebula: Rotating cloud of gas and dust - Orbit: Path an object follows around an…
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why does the moon have more visible craters than earth? \ earth has mor…
A. Earth has more erosion and plate tectonics that erase old craters ### Second Question (Star's life end):
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question 7 what force keeps planets in orbit around the sun? ○ gravity …
A. Gravity ### Question 8
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according to keplers first law, the orbit of a planet around the sun is…
A. An ellipse with the Sun at one focus ### Question 6 (How did Earth likely form?):
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scenario 4: one positive charge and one negative charge is shown. make …
## Observations: - There is one positive charge (\(+\)) and one negative charge (\(-\)) separated by a vertical distance on a grid. - The charges form an electric dipole (assuming…
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question 3 which of the following elements is most likely formed during…
C. Gold ### Question 4
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what evidence supports the idea that the universe is expanding? stars a…
C. Redshift shows galaxies are moving away from us ### Question 2:
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february 2nd - february 3rd, 2025 unit 4 : my world instructions: fill …
1. Civil Rights Act 2. Industrialization 3. Digitalization
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select the correct answer from each drop - down menu. which words best …
quarrel (or other appropriate synonym like dispute, argument depending on the available options in the drop - down. If we assume a common option, "quarrel" is a strong candidate)
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write at least two complete sentences: one sentence should explain some…
After this lesson, I understand that Earth formed around 4.6 billion years ago through the accretion of cosmic dust and gas, with smaller particles clumping together to form large…
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example problem 2: how many neutrons are in 2.5 kg of neutrons? given: …
The number of neutrons is approximately \( \boldsymbol{1.5\times 10^{27}} \) (or more precisely \( \approx1.49\times 10^{27} \))
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scenario 3: two positive charges are shown. make observations and sketc…
## Observations: - The two positive charges repel each other. - Electric field lines start from positive charges and point outward. - Between the two charges, field lines curve aw…
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independent practice which statement best describes why “an episode of …
B. It portrays life as it really is.
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how does radiometric dating help scientists estimate the age of the ear…
Radiometric dating analyzes the decay of radioactive isotopes in rocks. By determining the ratio of parent to daughter isotopes, scientists can calculate the time elapsed since th…
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question 5 what does the 5/20 rule help you determine? the grams of sug…
C. Whether a food is nutrient - dense
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what is one reason scientists believe earth experienced the heavy bomba…
C. Earth and the Moon formed in the same part of the solar system ### Second Question (Explanation)
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question 1 which process allowed earths surface to cool and form a crus…
A. Heat loss through radiation and volcanic activity ### Question 2
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why is bmi an imperfect tool for measuring body composition? check all …
- It does not take into account level of fitness. - It may underestimate body fat in some individuals.
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1. what is the fastest growing animal - based food - producing sector, …
1. Aquaculture (fish farming) 2. When harvesting rates exceed the reproductive capacity of the target species population 4. It firstly affects the large, older, and reproductively…
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which of the following are true statements? choose 2 answers: a the tem…
B. The final temperature of the quartz will be equal to the final temperature of the water. C. Thermal energy is transferred from the quartz to the water until thermal equilibrium…
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the screen of a surveying device is 0.0026 m wide and is 0.1 m away fro…
The triangles on either side of the lens are similar because the angles are **vertical** angles, and both triangles are isosceles, so that the corresponding sides adjacent to thes…
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which best describes a possible negative impact of irrigation of farmla…
B. Increased runoff can pollute bodies of water.
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what would happen if there were no condensation stage in the water cycl…
A. Water could not convert from a gas to a liquid.
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correctly models how the temperatures of the two subsystems will change…
B. A graph where curve A (red) decreases in temperature over time approaching a stable value, and curve B (blue) increases in temperature over time approaching the same stable val…
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which process allows water to enter the atmosphere? evaporation condens…
A. evaporation
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specific heat capacity of water this problem requires multiple steps, c…
A. 1,421.2 J
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a set of copper pans what is the primary reason the larger pan takes lo…
B. It has the same specific heat capacity, but contains more atoms. More thermal energy is required to raise their average kinetic energy.
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a drop of mercury being pressed by a needle which of the following are …
A. The temperature of the mercury will decrease, and the temperature of the water will increase. C. The thermal energy lost by the mercury is gained by the water.
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a wooden bowl is at room temperature. a student pours some hot soup int…
- Before the hot soup is poured into the bowl, there is no net flow of thermal energy (between the bowl and the surroundings). - Just after the hot soup is poured into the bowl, t…
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question 15 1 point the client is prescribed flovent 250 mcg metered do…
25