物理
运动学、受力分析、电学与方程推导。
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multiple choice question which of the following is the is a condition w…
C. Akinetopsia
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keplers third law of planetary motion describes the relationship betwee…
C. semi - major axis
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which of the following describes an economic effect of european imperia…
Many Africans were forced to work in factories that were little more than sweatshops.
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water pressure the water pressure at different depths in a swimming poo…
Part A: 20.46 psi Part B: 21.46 ft
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5. what is the frequency in hz (s⁻¹) of a 486 nm light? 6. a local radi…
5. $6.17\times 10^{14}\ Hz$ 6. $3.04\ m$ 7. $2.82\times 10^{-24}\ J$ 8. $3.05\times 10^{-22}\ J$
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in (figure 1), the total resistance is 20.0 kω, and the batterys emf is…
$t = 8.46\ \mu s$
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order the planets from nearest to farthest from the sun. earth saturn n…
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
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what is a virtual private network? a global system of networks a networ…
C. a secure network within a larger network
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what is troubleshooting? eliminating any data collision protecting your…
C. addressing a technical problem
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in (figure 1), the total resistance is 20.0 kω, and the batterys emf is…
Part A: $C = 0.700\ nF$ Part B: $t = 5.97\ \mu s$
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question 17 which statement is true about all forces? only one force ca…
# Breve explicación: Según la tercera ley de Newton, para toda fuerza de acción hay una fuerza de reacción igual y opuesta. Esto significa que las fuerzas siempre actúan en pares.…
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what is a command - line program? graphical interface direct interface …
C. text interface
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unit 1 lesson 3 11. commercial jets fly between 30,000 ft and 36,000 ft…
If the beanstalk grows at 10 feet per hour, it could take between 3000 hours and 3600 hours for the beanstalk to interfere with commercial aircraft. The time is calculated using t…
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question 19 - multiple choice 1. what does \de\ mean in the lever image…
The distance from the fulcrum to the point where the input force (effort) is applied.
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which of the following arguments decided the debate over using the atom…
Using the bomb would shorten the war and avoid heavy casualties among invading troops.
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which of the following best describes the difference between a scientif…
A. A hypothesis is a guess, a theory explains why/how, and a law explains what.
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which is not an abundant natural resource found in africa? diamonds pal…
A. Farm land
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question 20 - multiple choice what does \dr\ mean in the lever image sh…
The distance between the fulcrum (pivot point) and the resistance force (the load) being moved or overcome by the lever.
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what does the background theme control? ○ the sound and contrast ○ the …
the wallpaper and color of borders
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find the time it takes for a rocket following the path, $h(x)=-2x^{2}+1…
# Explicación: ## Paso 1: Establecer la altura en cero Cuando el cohete toca el suelo, $h(x) = 0$. Entonces, $- 2x^{2}+18 = 0$. ## Paso 2: Reorganizar la ecuación Sumamos $2x^{2}$…
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mr krabs wants to make a nicer place to live. he has created a new sauc…
- Variable independiente: el tipo de salsa - Variable dependiente: la cantidad de problemas de gases - Grupo experimental: grupo A - Grupo de control: grupo B
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select the various types of user accounts available on a windows 7 oper…
A. Administrator C. Standard E. Guest
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which statement correctly shows the relationship between an independent…
# Breve explicación: La variable dependiente es aquella que se mide y se espera que cambie en respuesta a la manipulación de la variable independiente. La variable independiente e…
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question 11 - multiple choice 1. what does \fe\ mean in the lever image…
This is the force that is applied to the lever to move it and its load.
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question 1 of 25 in a physics experiment, students found the relationsh…
$F = 2m + 0.5; 2$ es la tasa, $0.5$ es fuerza inicial
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value: 1 what emotion does the intertwined american flag and noose symb…
B. liberty is for some but not all
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10. osteoclasts = part f - joints match the joint type to its descripti…
- Part F: - Immovable (example: skull sutures): a. Fibrous - Slightly moveable (example: intervertebral discs): b. Cartilaginous - Freely moveable, most common: c. Synovial - Part…
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10. osteoclasts = part f - joints match the joint type to its descripti…
Part F: Immovable (example: skull sutures) - a. Fibrous Slightly moveable (example: intervertebral discs) - b. Cartilaginous Freely moveable, most common - c. Synovial Part G: 12.…
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1. evan wanted to find out what tooth - paste made teeth the cleanest. …
Independiente Variable: Tipo de pasta de dientes Dependiente Variable: ¿Cuánta placa hay?
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what is the force on an 800 kg airplane flying with an acceleration of …
### Explicación paso a paso: #### Paso 1: Identificar la fórmula Utilizamos la segunda ley de Newton $F = m\times a$, donde $F$ es la fuerza, $m$ es la masa y $a$ es la aceleració…
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golf ball hit w/ velocity of 60.0m/s at angle of 35.0 degree above hori…
A. Maximum height: approximately 60.6 m B. Horizontal distance: approximately 345 m C. Resultant velocity: approximately 51.2 m/s at an angle of approximately $-16.4^{\circ}$ (bel…
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step 2 & 3: plan the steps & identify decisions do this: - decompose th…
1. Smaller steps: Gather student - interest data, check student available time. 2. Decision points: Does the activity align with student interests? Does the activity fit within st…
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1. step 1: understanding the problem answer the questions below: 1. wha…
1. Without the algorithm details, it's unclear. But it could be to recommend activities. 2. Difficulty in understanding individual preferences, insufficient data, large variety of…
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match the units to the words they go with. mass choose acceleration cho…
# Explicación breve: En física, la fuerza se mide en newtons (N), la aceleración en metros por segundo al cuadrado (m/s²) y la masa en kilogramos (kg). Estas son las unidades está…
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direct stimulation of the motor cortex would be most likely to result i…
1. C. movement of the mouth and lips 2. B. temporal lobes
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what is one advantage of a local area network? it guarantees secure com…
The organization running the network can use all its own equipment.
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what law is this an example of? newtons 1st law newtons 2nd law newtons…
C. Newton's 3rd Law
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what is token passing? ○ the ability to reconfigure or update hardware …
a network access method that avoids the possibility of data collisions
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the table shows the approximate height of an object x seconds after the…
A. -2.75
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ghost: list, list, o list! if thou didst ever thy dear father love— ham…
It sets the main conflict in motion.
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which statement is true about all forces? forces do not exist in space.…
# Explicación detallada: ## Paso 1: Recordar la tercera ley de Newton La tercera ley de Newton establece que para toda acción, hay una reacción igual y opuesta. Esto significa que…
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select the physical components that enable data to travel across a netw…
B. circuit boards, C. cable, E. connector, F. server
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one railroad car rolls toward another. describe the properties of the f…
# Explicación: ## Paso 1: Definición de momento El momento ($p$) de un objeto se define como el producto de su masa ($m$) y su velocidad ($v$), es decir, $p = m\times v$. La masa …
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what is the function of the command prompt? ○ to type in a command ○ to…
to type in a command
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a 230 kg steel crate is being pushed along a cement floor. the force of…
# Explicación: ## Paso 1: Calcular la fuerza neta La fuerza aplicada es $F_{aplicada}=1860\ N$ (hacia la derecha) y la fuerza de fricción es $F_{friccion}=480\ N$ (hacia la izquie…
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a 230 kg steel crate is being pushed along a cement floor. the force of…
2300 N up
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integrated civics geography name one of the two longest rivers in the u…
Mississippi River
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a 230 kg steel crate is being pushed along a cement floor. the force of…
A. unbalanced
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11. use plancks constant, (h = 6.63\times10^{-34} jcdot s) to determine…
$3.78\times 10^{-19}\ J$ (corresponding to the second - option in the multiple - choice list you provided, assuming the options are in order as shown in the image)
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creative mindset explain how taking risks can lead you to success. then…
# Brief Explanations: Taking risks can lead to success as it often exposes one to new opportunities, experiences, and challenges that can foster growth and learning. For example, …
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integrated civics geography what ocean is on the east coast of the unit…
D. Atlantic
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once you have read the article, take this practice quiz and see how wel…
B. All of these are true
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if an object were released in space far away from planets or stars and …
# Breve explicación: Según la primera ley de Newton (ley de la inercia), un objeto en movimiento permanecerá en movimiento con una velocidad constante y en una dirección rectilíne…
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always use significant figure rules. remember that these rules apply to…
2
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questions 21 through 24 refer to the following. the preservation of the…
A. The autonomy of colonial legislatures from Great Britain
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always use significant figure rules. remember that these rules apply to…
$1.2\times10^{5}$ N·s
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always use significant figure rules. remember that these rules apply to…
# Explicación: ## Paso 1: Identificar la fórmula de la fuerza La fuerza se define como $F = \frac{\Delta p}{\Delta t}$, donde $\Delta p$ es el cambio en momento lineal y $\Delta t…
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always use significant figure rules. remember that these rules apply to…
$-1.2\times 10^{5}$
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if a racket strikes a ball (m = 100 g) with a force of 2000 n for 0.3 s…
6000 m/s
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each plate of a parallel - plate capacitor is a square with side length…
$I=\frac{\epsilon_0Vr^2(1 - K)}{d\Delta t}$
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match the following. match the items in the left column to the items in…
1. mass 2. Newton's First Law 3. impulse 4. momentum 5. velocity 6. Newton's Second Law
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question 6 (1 point) listen which of the following statements is true a…
Question 6: d Question 7: d
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the vice president is the head of all the armed forces. true false
False
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juan analyzes the amount of radioactive material remaining in a medical…
C. 8.2 units
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mark the statement that is not true. the \beltway mentality\ is a desir…
# Breve explicación: La "mentalidad del Beltway" se refiere a una actitud en la que los funcionarios y expertos políticos se centran demasiado en los asuntos internos de Washingto…
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select the correct answer. read the following excerpt from walt whitman…
B. The repetition illustrates the joy that the working class finds in their various trades.
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ii.sketch on the diagram the average resultant force acting on the bloc…
ii. Sketch an arrow starting from the center - of - mass of the block in the direction of the net acceleration (upward or downward depending on the motion of the block). iii. \(F_…
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what is the meaning of the word dissemble as used in the passage? waiti…
"conceal"
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read the passage. then, select the synonym of the word in bold. waiting…
disguise
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questions 17 through 20 refer to the following. the united states under…
B. The United States was not empowered to raise sufficient money for the government.
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5. an elastic climbing rope is tested by fixing one end of the rope to …
a. $34.3\ m/s$ b. i. $3615\ N$
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questions 14 through 16 refer to the following. the declaration of inde…
C. The ratification of a constitution that established a stronger central government
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sy23 - 24 semester 1 sgh environmental science interim assessment 1. wh…
C. Trees are a major carbon sink, and their removal releases stored carbon dioxide and reduces the rate of its absorption
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the graph shows an increase in global temperatures and atmospheric co2 …
C. The graph shows a correlation, but correlation does not necessarily prove causation.
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5. a plane flies 100 km north, then 75 km east. find the resultant disp…
Magnitude: 125 km, Direction: $53.13^{\circ}$ north of east ### 6.
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2 who was the person that was a strong advocate of the geocentric model…
2. c. Ptolomeo 3. b. Mark Celestial Events (Such as Solstices or Conjunctions)
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select the correct answer: read the following excerpt from walt whitman…
B. Whitman wants to highlight how diverse Americans are by using workers from different backgrounds.
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sleep researchers who are interested in brain wave activity are likely …
1. D. EEG 2. C. PET scan
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1. what is the bench press? 2. what muscles are activated during the be…
1. A weight - training exercise where a person lies on a bench and lifts a barbell or dumbbells from chest level to full arm extension. 2. Pectoralis major, triceps, anterior delt…
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a class of students is investigating the health of a local river. which…
B. pH and dissolved oxygen levels
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what do the following areas of scientific understanding have in common?…
C. The scientific knowledge related to these areas has changed over time.
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questions 1 through 3 refer to the following. \today, two hundred and f…
D. The British government attempted to restrict western settlement to reduce tensions between colonists and Native Americans
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based on the data in the graph, which of the following is the most poss…
C. The current period of warming will likely be followed by a period of cooling, as Earth's climate tends to follow natural cycles
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12 select the correct answer. which pair of sentences accurately compar…
C. Thomas Paine's purpose is to persuade his audience to persist in their course of action. Patrick Henry's purpose is to exhort his audience to follow a new course of action.
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problem 19.45 part a what is the ratio of the voltage v1 across capacit…
18
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which of the following is the best reason to protect a section of an oa…
D. to maintain the diversity of the living environment
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what are the 6 essential nutrients? 1 3 foods that are a good source of…
1. Carbohydrates; Bread, Rice, Pasta 2. Proteins; Chicken, Beef, Beans 3. Fats; Avocados, Olive Oil, Nuts 4. Vitamins; Oranges, Carrots, Spinach 5. Minerals; Milk, Bananas, Red Me…
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case study 21 germ theory of disease background information for centuri…
1. Miasma o desequilibrios en los líquidos corporales. 2. Microscopios y evidencias de que los microbios causan enfermedades. 3. Los microorganismos (gérmenes) son la causa de muc…
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4. a train carriage a of mass 500 kg is moving horizontally at 6.0ms⁻¹.…
1. **Explanation**: - **Step 1: Recall the principle of conservation of momentum** - The law of conservation of momentum states that the total initial - momentum \(p_i\) of a syst…
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elie wiesel most likely wrote all rivers run to the sea to lessen publi…
lessen public awareness of the events of the Holocaust.
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scientific knowledge is based on evidence. where do scientists acquire …
A. from observations or experiments
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24. constructed response: name at least one exercise that is an example…
Planking is an example of an isometric contraction because the core muscles contract to maintain the body's position without changing the length of the muscles significantly.
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six 7.5 - μf capacitors are connected in parallel. part b what is their…
Part A: Value: 45 Units: $\mu F$ Part B: Value: 1.3 Units: $\mu F$
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open - ended questions to guide discussion: 1. in “the danger of a sing…
The effects of prejudice include emotional distress, limited social and economic opportunities, and the creation of social barriers. For example, a person from a certain ethnic ba…
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a hypothesis is a statement that can be tested through a scientific inv…
A. Hypotheses suggest new questions for further investigations.
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attraction is shown in * 1 point option 1 option 2
Option 3, Option 4
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question 10 of 10 match each property with the benefit it provides to p…
carbon dioxide - retains heat energy from the sun in the atmosphere water in oceans, lakes, rivers and streams - moderates changes in temperature on the surface ozone - filters ca…
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when developing a question for a scientific inquiry, the question will …
D. all of these
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why did the women of seneca falls choose to echo the language of the de…
- to show that the Declaration of Independence applies to everyone - to appeal to the patriotism and emotions of the public
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greg wants to build a tree house. he wants the house to last for a long…
A. Build several models of his tree house out of different materials, and see which model holds up best to wind, water, and ice.