物理
运动学、受力分析、电学与方程推导。
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which of the following is true about the relationship between the brake…
D) All of the above.
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which of the following describes static friction? a) friction between m…
D) Friction between non - moving parts.
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which of the following describes kinetic friction? a) friction between …
A) Friction between moving parts.
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which of the following is used by the brake system to multiply force an…
D) All of the above
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4 fill in the blank 1 point find the average acceleration of northbound…
\( -3 \) ### Question 6
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select the correct answer. which statement best reflects the united sta…
A. The United States was concerned about communist influence from Cuban forces in Angola
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which of the following defines hydraulics? a) force pushing the piston …
C) Science of using liquids to perform work.
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which of the following applies to brake fluid? a) incompressible. b) mu…
D) All of the above.
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chapter 1 test multiple choice identify the choice that best completes …
d. economic interdependence ### Question 2
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homework 3 begin date: 8/17/2025 11:59:00 pm due date: 9/9/2025 11:59:0…
\( \boldsymbol{\frac{m_2 g - m_1 g \sin\theta}{m_1 + m_2}} \) (or equivalent factored form \( g\frac{m_2 - m_1\sin\theta}{m_1 + m_2} \))
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fossil fuels and climate change quick check how does the burning of fos…
Burning fossil fuels adds greenhouse gases, like carbon dioxide, to the atmosphere.
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which of the following best defines braking ratio? a) the comparison of…
A) The comparison of front and rear wheel braking effort.
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which statement best explains the biggest advantage satellites have ove…
2. Satellites can collect data over large areas while rain gauges only collect data in certain locations.
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class management | help homework 3 begin date: 8/17/2025 11:59:00 pm du…
$F_{r}\approx2.24\space N$ (or more precisely, using a calculator for $\sin(11^{\circ})$: $\sin(11^{\circ})\approx0.19080899537$, so $F_{r}=1.2\times9.8\times0.19080899537 = 1.2\t…
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fossil fuels and climate change quick check which best describes the re…
B. Climate change includes global warming as well as other factors.
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4 fill in the blank 1 point find the average acceleration of northbound…
\(-3\) ### Question 6
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homework 3 begin date: 8/17/2025 11:59:00 pm due date: 9/9/2025 11:59:0…
$\sum F_x = mg\sin\theta - F_r$
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homework 3 begin date: 8/17/2025 11:59:00 pm due date: 9/9/2025 11:59:0…
$0$
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homework 3 begin date: 8/17/2025 11:59:00 pm due date: 9/9/2025 11:59:0…
\( 0 \)
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5 multiple choice 1 point which box has the most kinetic energy? a b c …
A
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homework 3 begin date: 8/17/2025 11:59:00 pm due date: 9/9/2025 11:59:0…
\( \approx 0.30 \, \text{(or more precise } 0.295 \text{)} \)
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7. if you can measure the time that mars takes to travel around the sun…
Using Kepler's 3rd law, if we know the orbital period (time for Mars to travel around the Sun), we can calculate the average distance (semi - major axis) of Mars from the Sun.
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21 9 object s of mass 0.16 kg is moving forward at a speed of 0.50 m s⁻…
\( 0.31 \, \text{m/s} \) (corresponding to option C)
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draft for soapstone analysis for the unnamed them by ursula le guin thi…
To complete this rhetorical analysis (likely for "The Unnaming of the Animals" by Ursula Le Guin), here's how to fill each section: ### **Speaker** The speaker talking in the piec…
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question 10 (4 points) (01.07 mc) every time the world gathers for the …
The average speed is approximately \( 7.19 \) m/s.
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4. the planet takes one month to travel from x to y and one month to tr…
According to Kepler’s 2nd law, the areas of the two triangles (formed by the Sun and the planet's paths from A to B and from X to Y respectively) are equal, as the time taken to t…
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6. directions choose the correct answer for each row: match the social …
- Passage of Chinese Exclusion Act: Nativism - Overcrowding with unhealthy living conditions: Urbanization - Forced assimilation and threat of poverty: Immigration (Note: Each row…
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select the correct answer. which statement summarizes muhammad ali’s op…
A. He argued that the country's leaders should focus on correcting injustices at home.
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q9. powered up aircraft create a condition known as ________ that can c…
C. Jet blast, D. Propeller wash
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spend a few minutes exploring the model (feel free to play a bit!) payi…
- neutrons - electrons - protons ### Question 2
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which of the following are considered input devices? (select three.) pr…
C. Scanner, D. Microphone, E. Keyboard
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jameel’s therapist uses the cognitive triangle to help him talk through…
When you strike out in baseball, you think you have failed, you feel disappointed and angry, so you throw your bat.
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assessment - exploring careers: human services 2 of 15 which of the fol…
D. Caring for the psychological, physical and intellectual development of children
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draft an argument that convinces an audience to experience your favorit…
**Thesis Statement**: "The Lord of the Rings: The Fellowship of the Ring" is a must - experience film that offers a rich blend of storytelling, technical brilliance, and emotional…
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question 4 a monsoon is the pattern of seasonal wind and rainfall. a tr…
A. True
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kiara is a six-year-old girl who lives in a country with widespread acc…
Mario will not have early intervention for potential health issues.
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which sphere is made up of the parts of earth where life exists? geosph…
D. Biosphere
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do the binary numbers 0011 and 000011 have the same value or different …
The binary numbers '0011' and '000011' have the same value. ### Second Sub - Question: Would two bits be enough to assign a unique binary number to each vowel in the English langu…
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drag each computer function on the left with its associated hardware co…
- Input: Keyboard, Microphone - Processing: CPU, RAM - Long - term storage: Hard disk, DVD - RW - Output: Printer, Speakers
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diagram 1 (arrow from 35°c box to 105°c box) diagram 2 (arrow from 105°…
Diagram 2
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keyboard instructions drag fiber patch panel ethernet router server eth…
A. Ethernet router B. Ethernet switch C. Ethernet patch panel D. Fiber patch panel E. Server
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diagram 1 diagram 2 212°c 543°c 212°c 543°c which of the following depi…
Diagram 2
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you are in the process of setting up an ethernet network for a new buil…
A. Ethernet patch panel
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all other things being equal, the larger a wind turbine’s rotor diamete…
C. Most turbines installed in 2011 had rotor diameters of less than 100 meters, whereas most turbines installed in 2021 had rotor diameters of at least 115 meters.
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which of the following are considered computer hardware? (select two.) …
A. Printer, D. Motherboard
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your local area experiences brownouts or blackouts during frequent elec…
B. UPS
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rank the states of matter from most compressible to least □ solid, liqu…
B. gas, liquid, solid
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what is the climate of the fertile crescent? ○ hot and dry ○ wet and co…
A. hot and dry
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you are assembling components in a network and each device is related t…
C. Ethernet switch
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battle of yorktown in 1781, the continental army marched to yorktown, v…
C. Benjamin Franklin (assuming the options are labeled A, B, C as Thomas Jefferson, James Madison, Benjamin Franklin respectively)
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which state has a definite volume but not definite shape (it takes the …
A. liquid
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6. madya and ainsley are shopping for laptops. they find the same compu…
Madya got the better deal.
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how did the victory at the battle of trenton affect the continental tro…
It gave them hope.
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the continental army - around 32,000 british forces captured new york c…
B. New Jersey and Pennsylvania (assuming the middle option is labeled B, as per typical multiple - choice formatting where the correct option is the one with "New Jersey and Penns…
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uniform circular motion purpose: the purpose of this activity is to exp…
The magnitude of the object's velocity (its speed) remains constant during uniform circular motion. The direction of the object's velocity is tangential to the circular path it fo…
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which statement correctly describes the mesosphere? (1 point) ○ the nor…
D. Meteors burn up in this layer to create shooting stars.
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4. what two things can energy do? (pick 2 answers) be work transfer as …
The two correct options are: - transfer as heat - Be work
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atmospheric layers quick check why is it harder to breathe when climbin…
The air is thinner.
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assessment - exploring careers: human services 1 of 15 which of the fol…
Overseeing the finances of individuals and companies of all sizes
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5 select the correct answer. if a stone dropped into a well reaches the…
B. 44 meters (Note: The formula for free - fall distance is \(d=\frac{1}{2}gt^{2}\), where \(g = 9.8\ m/s^{2}\) and \(t = 3.0\ s\). Then \(d=\frac{1}{2}\times9.8\times(3.0)^{2}=44…
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what change, if any, is necessary in the underlined portion in the foll…
correct as is
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true or false? select all the statements that are true based on what wa…
The true statements (based on manufacturing principles) are: - A printed copper part is not yet as strong as a machined copper part. (If the video confirmed the 5 - year claim, in…
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homework 3 begin date: 8/17/2025 11:59:00 pm due date: 9/9/2025 11:59:0…
\( \approx 6.52 \times 10^{-3}\ m/s^2 \) (or \( 0.0065\ m/s^2 \))
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parts of speech review part 1: draw a line to match each part of speech…
### Part 1: Matching Parts of Speech with Definitions To solve this, we recall the definitions of each part of speech: - **Noun**: A person, place, thing, or idea. - **Pronoun**: …
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select the correct answer. if a ball dropped from a tower reaches the g…
C. 62.08 meters To find the height of the tower, we use the equation for free - fall motion \(h = v_0t+\frac{1}{2}gt^{2}\). Since the ball is dropped, the initial velocity \(v_0 =…
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from boston to new york dorchester heights - following the colonial vic…
A. made an agreement with the British
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multiple-choice question 3. the amount of energy in the universe is ___…
constant (the option labeled "constant")
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how may large - scale deforestation affect the amount of carbon dioxide…
C. by increasing the amount of carbon dioxide and decreasing the amount of oxygen
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select the correct answer. a ball at rest starts rolling down a hill wi…
D. 19 meters/second (Note: Using the kinematic equation \( v = u + at \), where initial velocity \( u = 0 \) (at rest), acceleration \( a = 3.2 \, \text{m/s}^2 \), time \( t = 6.0…
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true or false? select all the statements that are true based on what wa…
- Glue is injected into copper powder (True) - A printed copper part is not yet as strong as a machined copper part (True) - Tiny pockets of air in the copper part increase perfor…
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select the correct answer. a motorcyclist changes the velocity of his b…
C. 3.75 seconds
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2. energy of position is called ______ energy. kinetic potential
Potential (the option with "Potential" as the text, assuming the checkbox next to it is the correct choice here, so the answer is the option: Potential)
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what effect has breast cancer research had on society? ○ people who hav…
A. People who have gene mutations have more treatment options.
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multiple-choice question 1. all moving things have ______ energy. poten…
B. kinetic (assuming the options are labeled with the second option as B; if the first was A and second B, then the answer is B. kinetic)
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match the following definitions to the correct terms. keyboard help the…
To solve this matching problem, we analyze each definition and match it to the correct scientific term: ### 1. "The factor that is changed or manipulated during an investigation."…
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how did the french differ from the english and spanish when interacting…
A. They often got along with the Native Americans.
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true or false? select all the statements that are true based on what wa…
(Assuming the first two are True based on typical copper manufacturing via additive processes): - Glue is injected into copper powder (True) - A printed copper part is not yet as …
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one type of treatment for extreme depression includes sending electrica…
T
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multiple choice questions: choose the correct answer from the choices f…
c) An object at rest stays at rest unless acted on by a force.
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part three: post-reading questions: answer the following questions afte…
To answer these post - reading questions, we need the content of the article that was read. Since the article is not provided, we can't give specific answers based on the text evi…
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what happened to indentured servants in the southern colonies during th…
C. They worked for several years in exchange for transportation to the Americas, food, and lodging.
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q4 6. which of the following statements are true about thomsons discove…
(Assuming the options are labeled, e.g., if the second option is B and another, but with the given, the two correct are likely the option with "His experiment showed all atoms hav…
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homework 3 begin date: 8/17/2025 11:59:00 pm due date: 9/9/2025 11:59:0…
\(\frac{\sqrt{F_{\text{EM}}^2 + F_{\text{SM}}^2}}{m}\)
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patience lay a store of quiet strength from some pilgrim father or moth…
Vivian’s belief in her move was strong enough to overcome her usual reserve.
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5. in rutherford’s gold foil experiment, he used alpha particles to bom…
C. nucleus (assuming the option with "nucleus" is labeled as C, if the original options had labels like A, B, C, D, and the "nucleus" option is, say, the third one, we would prese…
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clear communication select which of the strategies were used in the hyd…
- Providing a detailed description of the problem (checked) - Using visuals to communicate the creative solution (checked)
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the british surrender at saratoga - the saratoga campaign relied on bri…
an American
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3. if you push a skateboard and it rolls forward, which law explains wh…
b) Newton's Second Law #### Question 4
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match the following definitions to the correct terms. keyboard help the…
- "The branch of science that studies matter and energy and their relationships" → Physics - "The patterns of investigation procedures" → Scientific Method - "A possible explanati…
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section 2 3. describe the earth’s layers. 4. what produced some of eart…
The Earth has four main layers: 1. **Crust**: Outermost, thin (5 - 70 km thick), solid. Continental crust (thicker, less dense, granite - rich); oceanic crust (thinner, denser, ba…
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great communication read the following bulletin that was sent to the ma…
B. Context: How and when this happened
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period: ______ date: ______ laws of motion and forces: velocity, accele…
### Fill in the Blank Answers: 1. The rate at which an object changes its velocity is called **acceleration**. (Explanation: Acceleration is defined as the rate of change of veloc…
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2 multiple answer 1 point fingerprints lifted from a knife found at the…
A. Individual
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of landforms found on earth? section 2 3. describe the earth’s layers. …
The Earth has a crust (outermost, solid, thin: continental thicker, oceanic thinner), a mantle (semi - molten, large volume: more solid near crust, more fluid in asthenosphere), a…
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how do the sister’s words in paragraphs 9–15 help move the plot toward …
C. Her confessions to her brother help him realize why his presence is important to her.
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3. describe the earth’s layers. 4. what produced some of earth’s larges…
The Earth has four main layers: - **Crust**: Outermost, thin (5–70 km thick), solid rock (continental: granite - rich; oceanic: basalt - rich). - **Mantle**: Below crust, ~2900 km…
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from ideas to reality on - site or supplier? choose whether the followi…
10 control panel covers: On - site 30,000 fasteners: Supplier Six circuit boards and four replacement beams: On - site
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21. give one reason why turning off equipment is important. 22. explain…
One reason is to save energy (or to prevent equipment damage, or to avoid safety hazards like electrical fires). ### Question 22
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select all that apply what are the long-term effects of meditation on t…
A. fewer negative emotions, B. reduced anxiety, D. increased activation in the left hemisphere, E. better immune system response to a flu vaccine
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activity: plantation system - fill in the blanks fill in the blanks wit…
Owner #### 2.