物理
力学、受力分析、電気、式を使った解法。
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which of the following is not seen in crohns disease?produces \skip les…
The mucosa shows the development of caseous granulomatous lesions
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the infection of the intestine that produces its effects due to product…
A. Cholera
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an infant who is being weaned is crying incessantly and is also vomitin…
Intussusception
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which of the following is usually associated with a benign ulcer of the…
C. Lesser curvature of the stomach
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the disease that is produced by an organism that invades into the intes…
B. Amoebic dysentery
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which of the following produces reflux esophagitis? sliding hiatus hern…
A. Sliding hiatus hernia
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the most common form of emphysema in a smoker would be: centriacinar pa…
A. Centriacinar
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which of the following is a bacterial infection that is characterized b…
C. Actinomycosis
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technology and economic growth quick check what does an increase in lab…
an increase in GDP with labor hours held constant
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which of the following could explain why the bulb did not light up? a t…
(1) A and B only
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extended response 8.1 linear momentum, force, and impulse 44. can a lig…
44. C. Yes, if the lighter object's velocity is considerably high. 45. A. The softer surface increases the duration of the impact, thereby reducing the effect of the force. 46. D.…
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a positively charged sphere with a charge of 2.6 x 10^-12 c and a mass …
a. \( 1.9\times 10^{3}\space m/s \)
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41. what is the difference between momentum and impulse? a. momentum is…
C. Momentum is the product of mass and velocity. Impulse is the change in momentum.
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34. how can you express impulse in terms of mass and velocity when neit…
34. a. $\Delta\mathbf{p}=\Delta(m\mathbf{v})$ 35. a. $\Delta\mathbf{p}=m(\mathbf{v}_f - \mathbf{v}_i)$
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8.1 linear momentum, force, and impulse 31. if an objects velocity is c…
- 31. B. Its mass - 32. B. Its impulse would be zero - 33. C. It is nonzero, because the net force is equal to the rate of change of the momentum
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26 you are in the emergency room as a student nurse for observation whe…
C. Tell the instructor who tells the charge nurse that you know how to reach the patient's spouse and offer the information that is needed. ### Question 27
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24. for how long should a force of 50 n be applied to change the moment…
A. \(0.24\space s\)
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current attempt in progress water is flowing down through the pipe show…
\(P_C, P_B, P_A\)
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21. what kind of quantity is momentum? a. scalar b. vector 22. when doe…
- 21. B. Vector - 22. C. When \( \Delta t \) decreases - 23. C. Mass
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current attempt in progress water flows from a wide section of a pipe t…
The narrow section.
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current attempt in progress in the drawing, water flows from a wide sec…
The volume flow rate is the same in both sections of the pipe.
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a hollow pipe is submerged in a stream of water so that the length of t…
The volume flow rate increases by a factor of 6.
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8.3 elastic and inelastic collisions 18. if a man with mass 70 kg, stan…
A. \(-3.6\space m/s\)
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a fluid flowing in a pipe with a uniform cross - sectional area changes…
The pressure in the fluid in section 1 is greater than in section 2.
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to answer this question, first click here to view the associated video.…
The pressure in the fluid in section 2 is greater than in section 1.
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17. for how long should a force of 130 n be applied to an object of mas…
C. \(15.4\space s\)
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8.3 elastic and inelastic collisions 15. two people, who have the same …
a. The first person will gain more velocity as a result of recoil.
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13. a ball rolling on the floor with momentum $\\boldsymbol{p_1}$ colli…
C. The magnitude of \(p_1\) is greater than that of \(p_2'\) ### Question 14
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11. how much force would be needed to cause a 17 kg·m/s change in the m…
A. \( 3.4\space N\)
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critical thinking items 8.1 linear momentum, force, and impulse 9. cons…
9. B. The second object will acquire more momentum. 10. A. It reduces injury to the passengers by increasing the time of impact.
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critical thinking items 8.1 linear momentum, force, and impulse 9. cons…
B. The second object will acquire more momentum.
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\james watt died in heathfield, near birmingham, on _______________.\
B. August 25, 1819
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\in addition to the railways, it was above all large steam ______ which…
A. ships
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\in ______, richard trevithick built a steam engine that could travel o…
1804
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1. what is impulse? a. change in velocity b. change in momentum c. rate…
1. b. Change in momentum 2. a. \(F = ma\) 3. c. \(kg\cdot m/s\) 4. a. \(p = mv\)
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3. what is the si unit of momentum? a. n b. kg·m c. kg·m/s d. kg·m/s² 4…
C. \( kg\cdot m/s \) ### Question 4
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\watts determined that 1 horsepower was the amount of work needed to ra…
75 (the option with 75, so the correct choice is the one with 75, e.g., if the first option is 75, then A. 75)
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conservation of momentum in an inelastic collision $m_1v_1 + m_2v_2 = (…
1. B. Change in momentum 2. A. \(F = ma\)
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multiple - choice question \if the speed of the steam engine increases,…
A. centrifugal
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\bolton immediately recognized the importance of watts steam engine. sh…
A. factory for manufacturing
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\for many years, steam engines were used primarily for operating ______…
B. pumps
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chapter 8 key equations (page 272) write the following equations accord…
- Impulse - Momentum Theorem: $\Delta p = F_{net}\Delta t$, where $\Delta p$ is the change in momentum, $F_{net}$ is the net force, and $\Delta t$ is the time interval. - Linear M…
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the graph represents the function where electricity usage in kilowatts …
0.25 kWh per day
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chapter 8 key equations (page 272) write the following equations accord…
- Impulse - Momentum Theorem: $\Delta p=F\Delta t$, where $\Delta p$ is the change in momentum, $F$ is the force, and $\Delta t$ is the time interval. - Linear Momentum: $p = mv$,…
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13. this graph shows the velocity of a 30.0 kg dog running to catch a f…
\(120\space kg\cdot m/s\)
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12. refer to the force versus time graph of an object with a mass of 14…
a. The impulse (change in momentum) from \(0\) to \(8\) seconds is \(14.5N\cdot s\). b. The object’s change in velocity from \(5\) to \(8\) seconds is approximately \(0.213m/s\). …
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10. a baseball of mass 0.15 kg is pitched at 40 m/s and is hit by a bat…
The average force exerted by the bat on the ball is \(1500\ N\).
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a specification lists a tolerance of ±0.005 inches. what is this in mil…
0.127 mm
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a weld joint requires 0.75 gallons of coolant. how many liters of coola…
First question: 2.84 L Second question: 6.35 mm
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question 18 traditionally, health and fitness professional activities h…
worksite, commercial, clinical, community
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you are cutting a sheet that measures 1200 mm by 900 mm. what are its a…
47 in × 35 in 177°C
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which of the following best describes how aircraft changed during the c…
B. Aircraft became faster and were used to carry heavier loads.
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leaving ones country of origin being made to move from one place to ano…
- emigration: leaving one's country of origin - forced migration: being made to move from one place to another by someone else - immigration: moving to another country to live the…
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table of contents > week 1: the writing process > lesson 2: proper mech…
A. Coordinating
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you need to weld a steel plate that is 3 feet long. how many centimeter…
91.44 cm 0.236 in
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6. give an example of a system whose mass is not constant? a. a spinnin…
C. A rocket launched from Earth ### Question 7
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question 6 what types of landforms are present at the great rift valley…
A. rift valleys, B. volcanic mountains, C. large lakes
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a welding blueprint lists a pipe diameter as 2 inches. what is this dia…
B. 50.8 mm
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3. write the equation for the impulse - momentum theorem and define all…
The equation for the Impulse - Momentum Theorem is \(J=\Delta p\), where \(J\) (impulse) \(=F\Delta t\) (\(F\): average force, \(\Delta t\): time interval), and \(\Delta p\) (chan…
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3. write the equation for the impulse-momentum theorem and define all t…
The change in momentum of the ball is \(5\ kg\cdot m/s\)
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question 25 4 points save answer a ball attached to a string starts at …
4.5 m/s²
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test information description instructions from the list of choices, sel…
15 m/s²
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problem reference 8 - 4 a wheel of radius 0.5 m rotates with a constant…
zero m/s²
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question 22 problem reference 8 - 4 a wheel of radius 0.5 m rotates wit…
3 m/s
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question 21 problem reference 8 - 4 a wheel of radius 0.5 m rotates wit…
B. 10 rad/s
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question completion status: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1…
20 rad/s²
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lead blocks the actions of which mineral? a. calcium b. copper c. selen…
a. Calcium
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fiona has been diagnosed with iron - deficiency anemia and is eating a …
b. Orange
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a force ( f ) that varies with time ( t ) is exerted on an object. the …
C. \(\frac{F_{0}}{b}\)
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which of the following is not a symptom of hypokalemia? a. irregular he…
d. Glucose intolerance
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if caterina uses a teaspoon of salt on each of her three meals a day, r…
c. 7000 mg
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which statement is true regarding the absorption of minerals from food?…
d. Calcium is excreted when sodium intake is high.
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which is a trace mineral? o a. iron o b. calcium o c. sulfur o d. chlor…
a. Iron
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mary has been in an accident and is losing blood. what hormone will the…
d. Antidiuretic hormone
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which fluid is the most basic (alkaline)? a. blood b. urine c gastric j…
a. Blood
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question 16 (2.5 points) which of the following is not found in formal …
B. Slang words ### Question 17
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sienna is to start taking warfarin, a blood thinner. which piece of die…
b. If she eats a salad every day, she should continue to eat a salad every day.
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vitamin a supplementation and food fortification cut the risk of dying …
a. Measles
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8. a 0.120 m long copper wire has a mass of 9.02 g and is carrying a cu…
The magnetic field strength is approximately \(\boldsymbol{0.144\ T}\) (or depending on the number of significant figures, if we consider the given values: \(m = 9.02\ g\) (3 sig …
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if amelia wants to improve the absorption of iron from her diet, which …
a. Red peppers
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what is the name of the niacin - deficiency disease? o a. anemia o b. b…
c. Pellagra
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which b vitamin can be made from the amino acid tryptophan after protei…
b. Niacin
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the peripheral nervous system is responsible for both sending and recei…
T
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a goniometer may be used to measure the range of motion of a joint. in …
The angle is classified as an obtuse angle, with \(90^\circ < \theta < 180^\circ\). So the blanks are: obtuse, \(90\), \(180\).
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a patient is diagnosed with a degenerative disease of the nervous syste…
A. multiple sclerosis
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how often does the body need b vitamins and vitamin c to be consumed? a…
a. Every one to three days
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this hard but flexible structure is found in the nose and ears. a. tend…
D. cartilage
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which statement accurately describes water - soluble vitamins? o a. the…
a. They are absorbed quickly into the blood.
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in the skeletal system, these structures are responsible for connecting…
A. ligaments and tendons
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which b vitamin can be destroyed by uv or fluorescent lights? o a. fola…
d. Riboflavin
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an individual having a history of migraine headaches would most likely …
A. a common issue of the central nervous system
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if you have a muscle that has atrophied, the muscle would be a. broken …
B. shrunken
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the main purpose of the selective service act of 1917 was to increase t…
A. increase the size of the armed forces by using the draft.
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based on the scenario below, select the statement that accurately finis…
A. damaged her peripheral nervous system because the information regarding taste cannot be transmitted back to her brain
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fill in the blank question a permeable underground layer through with g…
aquifer
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multiple choice question which is the region below earths surface where…
zone of saturation
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a signal from the nervous system that is sent from the brain to the han…
T
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bones provide both structure and protection for the body. please select…
T
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an individual visits the doctor because they notice that, over time, th…
C. The individual could have muscular dystrophy.
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fix the two plural or possessive errors. most childrens interest in sta…
Most children's interest in stars wanes as they get older. But one child's fascination led him to study physics at Harvard and astrophysics at Columbia University. That child, Nei…