物理
運動學、受力分析、電學與方程推導。
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i was offered and rejected command of the union forces at the start of …
C. Robert E. Lee
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u.s. foreign policies the policy of containment involved taking a dispu…
C. stopping the spread of Communism beyond its 1947 borders.
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question 5 of 10 why was it possible that lincoln would not be reelecte…
B. The North was discouraged by bad war news.
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neil armstrong spoke these words when he took his first steps on the mo…
C. the Apollo Program
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true or false question true or false: an executive agreement made by th…
True
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question 1 not yet answered marked out of 1.00 flag question if the cra…
B. Bent
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question 7 of 10 who were the copperheads? a. a native american tribe t…
C. Northern Democrats opposed to the war
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an attractive force that exists between all objects that have the same …
A. gravity
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14/35 decreases friction more force noncontact force lubricants contact…
C. lubricants
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fluid friction between an object and air is called motion gravity air r…
C. air resistance
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air and water are examples of what type of friction? force sliding fric…
C. fluid friction
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opposes the motion of surfaces sliding past each other sliding friction…
sliding friction
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the goal of the union in this battle was to end the war quickly. it res…
A. The First Battle of Bull Run
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crop rotation improved harvest yields by: reducing the amount of land u…
Maintaining soil fertility through varied planting
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prevents surfaces from sliding past each other sliding friction force f…
static friction
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never take measurements from the very end of a damaged steel rule, as d…
A. True
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bj: post - processing use the information below to answer the question …
A. A dye can be added
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the dial bore gauge can measure a bore directly by using telescoping pi…
True
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the dial bore gauge can measure a bore directly by using telescoping pi…
True
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bj: post - processing use the information below to answer the question.…
a more mechanical structure
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steel rulers most commonly come in all of the following lengths except:…
D. 48"
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a force that resists the motion of two surfaces touching force mass ine…
D. friction
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a ______ is a flexible type of ruler and is a common measuring tool. se…
C. Measuring tape
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a dial bore gauge determines if the diameter is ______ according to the…
d. All of the above
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the weight of an object on earth __________ when the object moves a gre…
C. decreases
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1-4 practice problems solve each of the following problems as directed.…
1. 0.83 m 2. 459000 mL 3. 1.123 ng 4. 32 L 5. 2500 $\mu$m 6. 1351 ps 7. 232.1 kPa 8. 23.78 dg 9. 175.6 mm 10. a. $7.824\times10^{-4}$ g b. $3.45\times10^{-4}$ g c. 3.78 g d. 0.034…
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the gravitational force exerted on an object mass force weight friction
weight
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what does the law of conservation of energy say? energy can disappear e…
energy can only change forms
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when the distance between two objects increase, the attraction between …
decrease
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the three most common shapes of flares include all of the following exc…
c. High - pressure flare
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stainless steel rivets should be used for riveting stainless steel, and…
A. True
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when materials are too awkward to grip vertically in a plain vice, it m…
A. Offset vice
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a tubing cutter is more ____ and neater than a saw when cutting pipes a…
A. Convenient
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multiple choice question andrew jackson was the first president to forc…
the president rather than Congress should take the lead on national policy issues
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when evaluating the speed of an olympic sprinter, we only need to know …
A. a scalar calculated as distance divided by time.
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a baseball and a bowling ball roll off a table at the same time. which …
They both hit at the same time
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mary weighed two colored metal balls during a science class. the purple…
9.6 pounds
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which is not an example of how velocity could change. (1 point) continu…
Continue at a constant speed in a constant direction
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a marker is rolled horizontally off the top of a table. after 5 seconds…
A. $\vec{v}=\vec{v}_0+\vec{a}\Delta t$
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a car accelerates from 5 m/s to 15 m/s in 2 s. what is its acceleration…
C. 5 m/s²
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a toy race car zooms across the ground with an acceleration of 1.8 m/s^…
B. 6.8 m/s
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which line on the graph represents the greatest positive acceleration? …
B.
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question 8 of 10 cortes and pizarro are known as leaders who a. defeate…
A. Defeated empires in the New World for Spain
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you ride your bike at a constant speed of 12 m/s for 100 s from your ho…
0 m/s²
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multi - step conversions chain conversion factors: start × factor1 × fa…
11. 56.8 L 12. 8.45 fl oz 13. 42.2 km 14. 70.0 L 15. 29.1 m/s 16. 110 $m^{3}$
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____ is an example of a vector quantity. (1 point) distance speed mass …
D. Velocity
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a soccer ball is kicked 6 m north. then a teammate kicks it 3 m east in…
D. 6.7 m Northeast
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a basketball gets thrown 7 meters vertically into the air and then come…
Displacement is 0m, Distance is 14 m
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take quiz figure 11.3 use the diagram above to answer the following que…
- For the first question: D - For the second question: extrinsic or intrinsic.
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what effect does increasing the launch angle of a projectile launched f…
Increasing the launch angle increases the range if the initial angle is less than 45 degrees, but decreases the range if the initial angle is more than 45 degrees.
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a football is thrown into the air at an upward angle, and it eventually…
B. In the vertical direction it moves up quickly, slows down, reverses direction, then speeds up until it hits the ground. In the horizontal direction it moves at the same speed.
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in a movie, a car drives forward off a cliff, crashing into the ocean. …
The horizontal velocity remains constant, and the vertical velocity changes.
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logic of science and the scientific method using the numbers 1 - 6, ind…
Order of scientific method events: Identify the problem to be studied - 1 Perform background research on the problem - 2 Make a hypothesis and an experimental prediction - 3 Make …
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question 27 1 pts a muscle with fascicles that insert into the tendon f…
Question 27: B. bipedal Question 28: A. parallel
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use the image to answer the question. a stunt motorcyclist jumps off a …
19.2 m
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a patient started a new diet that requires each meal to have 460 calori…
Fruit: 2 servings, Cottage cheese: 2 servings, Toast: 1 serving
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compare and contrast the effects of the following changes in motion. - …
The first increases the speed of the object in the direction of motion. The second does not change the object’s speed but will cause it to turn along a circular path.
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suppose you are looking at two graphs of position vs time. the first gr…
C. Both graphs increase with time, but the first graph is linear with a positive slope while the second graph curves upward, becoming steeper and steeper.
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a car has an initial velocity of 55 m/s. when brakes are applied, it ac…
$-7.6\frac{m}{s^{2}}$
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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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question 24 1 pts the long axes of the fascicles run parallel to the lo…
parallel
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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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how long should you delay your start at an intersection? 3 seconds 12 -…
A. 3 seconds
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questions 14 through 16 refer to the following. \the declaration of ind…
D. The inability of the central government to carry out many laws
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question 22 1 pts the biceps brachii has this fascicle arrangement, whi…
Question 22: parallel Question 23: circular
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question 20 1 pts in addition to the pectoralis major, another muscle t…
C. convergent
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explain the patterns you see in the graph and how it helps you understa…
Patterns in velocity - time graph show speed - building and final speeds of training plans. Patterns in acceleration - time graph show intensity of training over time.
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can you remember the three major elements of u.s. foreign policy during…
brinkmanship, containment, domino theory
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question 17 1 pts an example of a muscle with this type of fascicle arr…
Question 17: circular Question 18: agonist Question 19: serratus anterior
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perform the following operations and give the answers in the correct nu…
1. $325.2$ 2. $18020$ 3. $0.01745$ 4. $0.790$ 5. $2.8908\times 10^{7}$ 6. $27.2$ 7. $4.9\times 10^{12}$ 8. $1.86\times 10^{5}$
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can you remember the three major elements of u.s. foreign policy during…
Use a superior show of force to bluff the enemy into backing down. If one nation succumbs to Communism, it will set off a chain reaction in the region. The main U.S. goal was to p…
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question 15 1 pts muscles with this type of muscle fascicle arrangement…
A. parallel
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questions 1 through 3 refer to the following. \today, two hundred and f…
C. The British government increased taxation of colonial goods to help pay off the debt created by the war.
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muscles that move the forearm include which of the following? brachiora…
Question 12: D. All of these are correct. Question 13: D. fascia Question 14: B. calcaneal tendon
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the graph represents the motion of an object over an interval of time i…
39.0
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why is it important to have health insurance? x - rays and other scans …
All of the above
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a muscle with fascicles that insert into only one side of the tendon is…
unipennate.
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vibrations send waves into the air. our brains intereperet this as rhyt…
1. B. sound 2. D. fundamental
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what message does bradbury convey about technology through the story? a…
C. Technology can suppress individuality and human interaction.
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in which reflex is there a quick contraction of flexor muscles in respo…
A. Flexor
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what is the central theme of \the pedestrian\? a the importance of law …
C. The loss of individuality in a conformist society
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the diagram below shows the different phase transitions that occur in m…
4
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which burn extends into muscle and bone? first degree fourth degree sec…
B. Fourth degree
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question 2 1 pts the individual muscle fibers are covered by a connecti…
Question 2: B. endomysium Question 3: D. origin
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as sherri pitches her new product to a local business, she uses languag…
C. vivid words
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1. use the space next to the graph to analyze each graph for patterns a…
Training Plan A starts slow and accelerates, Plan B has a steady progress, and Plan C starts fast and levels off. This helps in understanding the rate of progress in each plan.
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the cold war atmosphere identify the term that matches each definition …
1. Arms - race 2. Mutual assured destruction (MAD) 3. Deterrence 4. Brinkmanship
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what are the three main types of plate boundaries described in the vide…
B. Divergent - Mid - Atlantic Ridge; Convergent - Andes Mountains; Transform - San Andreas Fault
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how does paleomagnetism provide evidence for seafloor spreading? earthq…
D. Magnetic stripes on the ocean floor show reversals in Earth's magnetic field
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harry hess compared seafloor spreading to what everyday object, and why…
D. A conveyor belt, because new crust formed and pushed old crust away
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9. spi 0807.12.5 (gravity - mass and distance). which of these affects …
B. the distance between Earth and the sun
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what important discovery did marie tharp and bruce heezen make when map…
The Mid - Atlantic Ridge with fracture lines
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the solar system illustration shown above. gravity from the sun affects…
c. Pluto will be the least affected
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alfred wegener proposed the idea of continental drift in 1912. what mai…
Fossil distribution, rock types, and mountain ranges
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6. spi 0807.12.5 (gravity - mass and distance) diagram 01 the sun plane…
c. Mercury is closer to the sun than planet Venus
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7. are massive spheres of extremely hot gas in space that give off ligh…
7. Stars 8. Energy 9. Apparent magnitude 10. Gravity 11. Visible portion of the Moon (or illuminated face of the Moon) 12. Atmosphere
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· write a 1 in front of the larger unit · determine the power of 10 for…
1 Mm = 1e8 cm
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10/25, 9:34 am which of these celestial objects has the greatest amount…
a. when they are 1 meter apart
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name science unit 1 vocabulary hw shadow axis rotates illuminated orbit…
1. constellation 2. illuminated 3. rotates 4. orbits 5. shadow 6. axis
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why did loyalists oppose separation from england? select the two correc…
They feared a loss of property. They were worried about mob rule.