物理
運動學、受力分析、電學與方程推導。
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the opening through the vocal cords is called the: a glottis. b adenoid…
A. glottis
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at 10. °c, 20. g of oxygen gas exerts a pressure of 2.1 atm in a rigid,…
B. 2.3 atm, because the pressure $P$ increases by the proportion $\frac{313}{293}$
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10. a 40 g sample of water absorbs 500 joules of energy. how much did t…
$3^{\circ}C$
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multiple choice question the number of animals that can be supported in…
C. carrying capacity
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a gaseous air - fuel mixture in a sealed car engine cylinder has an ini…
B. About 12, because the volume of the gas mixture decreased by a factor of 12.
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which arteries carry deoxygenated blood to the lungs? a systemic b aort…
C. pulmonary
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question 1 acne ______ is the common form of acne seen in teenagers. a …
C. vulgaris
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9. 45 grams of an unknown substance undergoes a temperature increase of…
$2.44$ J/(g·°C)
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2) a golf ball is initially at rest sitting on a tee. once hit, it acce…
a) $10\ s$ b) $0\ m/s^{2}$. There is no net vertical force acting on the ball immediately after it is hit (neglecting air - resistance and other vertical forces), so according to …
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survey participant comfort rating preferred temperature adjustment 20 -…
C. but participant 20 reported feeling significantly colder than the other two participants did.
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a beaker is calibrated to 100 ml, meaning it can be estimated to the ne…
It is not very precise.
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at 2:00 pm the temperature is 18°f. at 10:00 pm the temperature is - 9°…
$-27$
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2) a golf ball is initially at rest sitting on a tee. once hit, it acce…
a) $10\ s$ b) The golf ball's acceleration in the vertical direction is $0\ m/s^2$. We know this because the net vertical force on the ball while it is accelerating horizontally o…
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what is the calibration of this graduated cylinder? calibration = \\fra…
2 mL
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to what place value can you estimate the volume in a beaker having a ca…
the tenths place
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8. copper has a specific heat of 0.385 j/(g×°c). a piece of copper abso…
$129.9g$
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define variables for the problem situation. the amount owed on a monthl…
B. $d =$ amount owed in dollars and $K =$ kilowatt - hours used
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what connections are there between star life cycles and the rate of nuc…
1. Main - sequence stage. There is a balance between gravitational force and outward pressure from nuclear fusion. 2. Main - sequence stage. They have a large supply of hydrogen f…
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1) a car is sitting at a stop light. when the light turns green, the ca…
$5.36\ m/s^{2}$
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making measurements thermometer consider the following thermometer, and…
10
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which informs us to record the temperature measurement to the tenths pl…
D. 31.0°C
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what place value should the temperature be recorded to? 0.1 °c 0.01 °c …
0.1°C
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making measurements there is a difference of 10 between marked values. …
1 °C
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making measurements calibration = number of spaces between marked value…
10
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calibration = \\frac{10}{number of spaces between marked values} what v…
5
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what value would you put in the denominator of this calibration? 5 2 1 …
1
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making measurements calibration = difference between 2 marked values / …
10
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inferences: foundations google classroom microsoft teams microbes that …
C. the presence of some kinds of underwater plants like watermilfoil helps prevent methane from escaping shallow lakes and ponds.
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human - made structures such as roads, buildings, and other infrastruct…
A. The relatively high temperatures of urban heat islands lead to increased energy consumption and pollution, so many urban communities are considering natural cooling solutions.
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i. directions: read each statement carefully. if the statement is true,…
1. False. Skeletal muscles are attached to bone and are under voluntary control. 2. False. Tendonitis is the inflammation of a tendon. 3. False. Smooth muscles line passageways an…
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why is monitoring pests so important when using integrated pest managem…
to make informed decisions and minimize unnecessary pesticide use
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how did women use their positions in the workforce to demand rights? ch…
They joined unions. They changed the rules where they worked. They got separate restrooms from men. They formed women's suffrage organizations. They won property rights.
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how was william wilberforce, a member of parliament, able to affect the…
In 1807, he achieved a ban on British slave trade.
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answer each question. please note: you can answer each question only on…
A. A pressure higher than atmospheric pressure. B. A pressure lower than atmospheric pressure. C. A pressure equal to atmospheric pressure.
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read the excerpt from roosevelts state of the union address and the pos…
A. conserving resources at home so troops can have more
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in \aint i a woman?\ why does truth repeat the phrase \aint i a woman?\…
to reinforce that she is strong, resilient and female
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question 3 of 10 which example from the conclusion of \the perils of in…
A. The reminder that Wiesel is a Holocaust survivor
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challenge the temperatures at sunrise and sunset are shown in the table…
The temperature change on Day 1 was 30.34°C. The temperature change on Day 2 was 34.07°C. The temperature change was most on Day 2.
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ingrid is participating in a relay race. while jogging at 9 km/h, she t…
C. 16 km/h
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the depressing tale of the st. louis is a case in point. sixty years ag…
D. He gives a specific example of a tragedy caused by indifference.
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always use significant figure rules. remember that these rules apply to…
39
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the passage below describes a process of scientific inquiry. select the…
She measured the pressure of each tire on her dad's car before he drove it to work. When he came home, she measured the pressure again.
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question 8 (4 points) answer the following questions using the image be…
Blank 1: 37 Blank 2: 2 Blank 3: 36.9 Blank 4: 37.1
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drag each label to the correct location. classify each material as an a…
Alloy: bronze, brass, steel Ceramic: brick, tile, glass
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question 5 (multiple choice worth 3 points) (06.03r mc) when a pot fill…
The student's claim is incorrect because the water transfers heat within itself from the bottom to the top by convection.
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read the excerpt from martin luther king jr.s i have a dream speech. we…
C. plea for peaceful action
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determine whether the conclusion is valid based on the given informatio…
Valid
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one of these representations is not like the others. tap on the one tha…
The representation with arrows representing force vectors.
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rewrite the following statement using a number in scientific notation. …
$7.6\times10^{-10}$ meters
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binder jetting: sand. use the information below to answer the question.…
The file directs the machine where to spray the binding agent.
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what is the main force that is in action in the following picture. * sp…
Applied
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1. how many significant figures are in each of the following? a) 3.405 …
a) 4 b) 3 c) 3 d) 5 e) 5 f) 3 g) 3
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question 5(multiple choice worth 3 points) (04.05 lc) where is the last…
B. Ocean
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which attachment helps make carrying cattle panels on the lift, easier?…
B. Forklift Extensions
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a group of people are in a sweat lodge for a ceremony. the temperature …
1. $25^{\circ}C$ 2. Decrease of $25^{\circ}C$
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a 50 kg boy runs and jumps with a forward velocity of 1.5 m/s into a 12…
0.43 m/s, forward
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a box is pulled to the right with a force of 65 n at an angle of 58 deg…
34 N
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the chart shows data for a moving object. which conclusion is best supp…
The object is not accelerating.
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a train car has a mass of 10,000 kg and is moving at +3.0 m/s. it strik…
1.5 m/s
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a velocity vs. time graph for an object is shown. which parts of the gr…
W and X
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question 9 of 10 which source would offer the most credible information…
D. An online article written in December 2012
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20. what should you do before putting a car up on the hoist? a. check t…
(20) c. Put the car in park (21) d. Neither A nor B (22) c. Using a scan tool or code reader (23) b. 12.6 volts (24) c. Hydrogen (25) b. Inform the instructor (26) b. Inverter (27…
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which formula is used to calculate the mass of an object if the force a…
B. $m=\frac{F}{a}$
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question 7 of 10 which person has the best qualifications to write a cr…
C. A pediatrician at a children's hospital who conducted several studies on childhood obesity
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a bucket of water experiencing a gravitational force of 525 n is pulled…
570
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the free body diagram shows a box being pulled to the left up a 25 - de…
20
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question 12 (mandatory) (2 points) a childs social and emotional develo…
D. all of these
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the free body diagram shows a box being pulled to the left up a 25 - de…
1. **Explanation**: - **Step 1: Analyze forces perpendicular to the incline** - Assume the incline - plane is the \(x - y\) plane with the \(y\) - axis perpendicular to the inclin…
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review the water quality report and then answer the question. springtow…
# Breve explicación: El texto menciona la fuente del agua potable de Springtown (río Olson) y detalles sobre su contenido, como la cantidad de flúor naturalmente presente y cómo s…
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question 9 (mandatory) (2 points) all of the following are ways to ebui…
D. Always jump in when the child needs help
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students perform an experiment in which they drop two eggs with equal m…
The impulse was the same in both experiments because the egg came to a stop.
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which formula is used to find an objects acceleration? o a = δt - δv o …
C. $a = \Delta v/\Delta t$
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newtons third law of motion says that for every action there is a(n) an…
equal
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a sports car and a minivan run out of gas and are pushed to the side of…
the sports car, because it has less mass and therefore less inertia
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the record high in california was 124 degrees f. the record low in cali…
167°F
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question 4 (mandatory) (2 points) which of the following would be consi…
Writing your name
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the free - body diagrams of four objects are shown. which object has a …
W
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motion of a round trip. a ski lift carried maria up a slope at the rate…
She skied for $0.075$ hours (or $4.5$ minutes) and skied a distance of $2.55$ km.
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true/false: select a for \true\ and b for \false\ mark your scantron! 1…
23a. Approximately $352.7\ m/s$ 23b. Approximately $2627\ m$ 24a. $0.6\ m/s$ 24b. $510\ m$ 24c. Approximately $1.8\ m/s$
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osha standards for electrical equipment and systems cover what elements…
Anything a worker could touch
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a client is undergoing therapy in a whirlpool unit that has been plugge…
Using Extension or Flexible Cords Improperly
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yesterday, the japanese government also launched an attack against mala…
# Breve explicación: Al enumerar múltiples ataques de Japón en diferentes ubicaciones, Roosevelt enfatiza la extensión y la gravedad de las agresiones, mostrando que el peligro es…
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a worker standing on a freshly mopped floor is adjusting products on a …
B. Contacting Energized Sources
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i have but one lamp by which my feet are guided; and that is the lamp o…
Henry uses metaphors (experience as a lamp), rhetorical questions (about fleets and armies for love - reconciliation), and imagery (insidious smile) in his speech.
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i have but one lamp by which my feet are guided; and that is the lamp o…
A. "It is only in this way that we can hope to arrive at truth, and fulfil the great responsibility which we hold to God and our country." (Paragraph 1)
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yesterday, the japanese government also launched an attack against mala…
# Breve explicación: En el texto en negrita, Franklin Delano Roosevelt repite la frase "Last night, Japanese forces attacked" (Anoche, las fuerzas japonesas atacaron) en varias oc…
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i have but one lamp by which my feet are guided, and that is the lamp o…
D. people willing to fight, allies, and a just cause
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fill-in-the-blanks summary paragraph_ use terms below to complete pa ep…
The knight emerged as the central Military force in the Feudal Middle Ages due to the constant need for a professional, mounted military. Knights were given land (feudal grants) f…
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yesterday, the japanese government also launched an attack against mala…
# Breve explicación: En el discurso, Roosevelt enumera los ataques japoneses no provocados y pide a Congress que declare el estado de guerra. Esto indica que su objetivo es conven…
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i have but one lamp by which my feet are guided; and that is the lamp o…
C. Henry uses rhetorical questions and answers to argue how futile trusting the British and continuing to try to make peace.
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question 2 of 5 why did fast - food companies start marketing their pro…
D. To create an early sense of brand loyalty in their customer base
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the atmosphere is a thin layer of that surrounds earth. * your answer i…
1. Gases 2. Traps heat, protects from radiation, provides oxygen 3. The Sun 4. Clouds form high in the atmosphere; fog is in contact with the ground 5. Water vapor, condensation n…
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8. sketch a graph to help you answer the question. then, write your ans…
6
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13. a cannonball is fired at some upward angle diagonal to the ground. …
13. a. Downward only. 14. c. 10 m/s. 15. a. I 16. d. 29 cm 17. A
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earthquakes are represented by the gray dots. according to the map, whi…
D. West of Charlotte
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question 1 - 2 in passage 1, how does the authors presentation of sam c…
Sam Clark is introduced as a friendly character whom Carol immediately likes and trusts, indicating that she feels hatred for her husband, Kennicott.
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impact of volcanic gases on acid rain formation which of the following …
C. Sulfur Dioxide
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match the weather with the front it is associated with. * cold front wa…
Fair, clear weather: None (not directly associated with a single front in an exclusive way) Rain/Snow for many days: Warm Front, Stationary Front Rain and strong winds: Cold Front…
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in order to be classified as a hurricane, what speed must the wind exce…
1. First question: 119 km/hr (74 mph) 2. Second question: - Wispy clouds: cirrus - Puffy clouds: cumulus - Sheet - like clouds: stratus
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which step from the water cycle is driven by gravity? * condensation pr…
1. precipitation 2. condensation 3. evaporation