物理
運動學、受力分析、電學與方程推導。
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an object is oscillating in simple harmonic motion with an amplitude a …
Decrease \(A\) by \(10\%\) and increase \(\omega\) by \(10\%\)
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consider the following fallacy. explain why the fallacy applies to the …
The example shows the slippery - slope fallacy because there is no evidence that sending troops to three countries will necessarily lead to having troops everywhere. The correct a…
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a ball is dropped from some height onto an unstrained vertical spring (…
B. Gravitational, kinetic, and elastic
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a concave refracting surface of a medium with index of refraction n pro…
never.
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34.1 images and plane mirrors two plane mirrors make an angle of 90° wi…
three.
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read the excerpt from the odyssey. at this he gave a mighty sob and rum…
He is trying to regain his sight and avenge himself upon Odysseus.
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an object is placed 30.0 cm in front of a mirror. if it produces an ima…
-37.5 cm
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read the passage from beowulf he joyed in the night - work, in repute f…
Beowulf is planning to continue being a warrior.
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how did the ottoman empires millet system impact its diverse population…
It helped maintain peace and stability by allowing various groups to practice their faiths.
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read the passage about grendel from beowulf. for no cause whatever woul…
From Beowulf’s perspective, Grendel is a villain, but from Grendel’s perspective, Hrothgar and the Danes are the villains.
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5. the world record pole vaulter had 4,942 j of energy when he achieved…
\(6.15\ m\)
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7. one of the tallest radio towers is in fargo, north dakota. the tower…
\(5.0\ kg\)
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6. a bowling ball has a mass of about 2.85 kg. suppose the ball is roll…
$51.3\space J$
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18 multiple choice 4 points which group was most at risk during the spa…
soldiers
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5. the world record pole vaulter had 4.942 j of energy when he achieved…
\(6.15\space m\)
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read the lab report conclusion and then answer the question. based on t…
a high school science teacher
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in the video loaded onto canvas about the experiment run by mark raser,…
C. a powder called Glow Germ
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individuals who are the most at risk to contract a disease and have mor…
elderly and immunocompromised
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question 18 1 pts the \portal of entry\ for a blood borne infectious pa…
a cut on the skin
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a 50.00 g sample of an unknown metal is heated to 45.00°c. it is then p…
\(C_{p,metal}=\frac{-m_{cal}C_{p,cal}\Delta T_{cal}}{m_{metal}\Delta T_{metal}}\) (the second option in the given choices)
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question 17 the \portal of entry\ for an airborne pathogen is: ◯ a need…
the nose or mouth
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question 16 a \preprocedural mouth rinse\ is: having patients use act f…
Having patients rinse with an oral disinfectant prior to their appointment to reduce the number of microorganisms present in the oral cavity.
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question 15 which is not true about examination gloves: they can also b…
The option “hands are washed before putting them on” is a correct practice (not the wrong one, but we are looking for the NOT true. Wait, no - re - check. The question is “Which i…
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question 14 protective clothing: should be either disposable or left to…
should be either disposable or left to wash at the office
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question 13 there is a possibility that diseases can be transmitted: al…
all of the answers here would be correct
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how did the blend of native religions with islamic teachings impact afr…
It created unique cultural traditions that combined elements of both belief systems.
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question 7 1 pts glove, eyeware, gowning attire, and masks are consider…
Personal Protective Equipment
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the concept that all patients should be treated as if they could have a…
Universal Precautions
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question 5 a container used for the disposal of needles and broken glas…
sharps container
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20. a high tide occurred at 6:00 a.m. at a beach on long island. the ne…
A. 6:30 p.m. on the same day
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question 4 the dental procedure that involves removing infected pulp ti…
root canal therapy
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when a patient has decay in his/her tooth, the process of removing the …
restoration
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question 2 1 pts when thinking about the \chain of infection\, during t…
mode of transmission
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55. the diagram below represents a total solar eclipse as seen from ear…
C.
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54. the diagram below represents the moon in its orbit, as viewed from …
A. Option Text
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53. base your answer to the following question on the diagram below and…
A. 1
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52. the diagram below shows the position of the sun, the moon, and eart…
B. Sun behind Moon
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49. base your answer to the following question on the diagram below, wh…
D. increase, then decrease
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41. base your answer to the following question on the graph below and o…
D. perigee and a full - Moon phase
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39. the graph below shows the change in tide heights of the hudson rive…
C. 6 hours ### 40.
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read the text. then answer the question. mud was deposited at the botto…
From oldest to youngest: shale, limestone, sandstone, conglomerate.
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read the text. then answer the question. sand, mud, and boulders were d…
younger: sandstone, shale, conglomerate : older
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read the text. then answer the question. clams, crustaceans, and fish l…
limestone (oldest), sandstone, siltstone (youngest)
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read the text. then answer the question. mud was deposited at the botto…
The first rock sequence (with shale at the bottom, then sandstone, then shale on top) is the correct one.
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analyze this: a rightward force of 56.1 n is applied to a 7.87 - kg obj…
\(F_{norm}=77.126\ N\), \(F_{grav}=77.126\ N\), \(m = 7.87\ kg\), \(a = 4.47\ m/s^{2}\), \(F_{net}=35.1789\ N\), \(F_{frict}=20.9211\ N\), \(\mu\approx0.271\), \(F_{app}=56.1\ N\)
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read the text. then answer the question. ocean sediment was deposited b…
The rock sequence with sandstone (younger) on top of limestone (older) is the correct one.
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but on the spot i told them: back, and quickly! out to sea again! my me…
They want to eat, drink, and enjoy themselves before setting off on their journey.
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base your answers to questions 29 and 30 on the diagram below and on yo…
A. \(C\) and \(A\) ### Question 30
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read the text. then answer the question. a valley was covered by a glac…
The rock sequence with conglomerate (older) at the bottom and shale (younger) on top (the second option in the image).
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analyze this: a rightward force of 339 n is applied to a 22.8 - kg obje…
\(F_{norm}=223.44\space N\), \(F_{frict}=122.22\space N\), \(F_{app}=339\space N\), \(\mu = 0.547\), \(F_{grav}=223.44\space N\), \(m = 22.8\space kg\), \(a = 9.51\space m/s^{2}\)…
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read the text. then answer the question. wind deposited sand in a deser…
The first option (conglomerate on top of sandstone) is correct.
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multiple choice question the coefficient of kinetic friction is the slo…
the frictional force to the normal force.
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multiple choice question the force exerted on one surface by a second s…
static friction.
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the text below describes how an areas environment changed over time. re…
The rock has two layers: an older layer made of shale and a younger layer made of limestone.
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analyze this: a rightward force is applied to a 6.8 - kg object to acce…
- \(m = 6.8\space kg\) - \(a = 19.6\space m/s^{2}\) - \(\mu=0.591\) - \(F_{grav}=66.64\space N\) - \(F_{norm}=66.64\space N\) - \(F_{frict}\approx39.38\space N\) - \(F_{net}=133.2…
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21. the diagram below shows the relative positions of the sun, the moon…
B. A solar eclipse was observed from position A # 22.
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the text below describes how an areas environment changed over time. re…
First, a layer of mud was deposited. Later, a layer of sediment made up of the shells of marine organisms was deposited.
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select all that apply which everyday scenarios are examples of friction…
- sliding a book across a desk - tires gripping the pavement of a road
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kinetic friction force v. normal force ordering question click and drag…
highly polished table, rough table, sandpaper
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15. which arrangement of the sun, the moon, and earth results in the hi…
A.
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the text below describes how an areas environment changed over time. re…
an older... a younger
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analyze this: a rightward force is applied to a 6.11 - kg object to acc…
\(m = 6.11\space kg\) \(a = 15.1\space m/s^{2}\) \(F_{grav}=59.878\space N\) \(F_{norm}=59.878\space N\) \(F_{net}=92.261\space N\) \(F_{app}=120.861\space N\) \(F_{frict}=28.6\sp…
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select all that apply which are factors that affect the frictional forc…
- B. the materials that make up the surfaces - C. the texture of the surfaces in contact with each other - D. the magnitude of the normal force acting between the two surfaces
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12. the diagram below represents earth and the moon as viewed from abov…
D. high tides at \(A\) and \(C\); low tides at \(B\) and \(D\) 13.
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the text below describes how an areas environment changed over time. re…
First, a layer of sand and pebbles was deposited. Later, a layer of sand was deposited.
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in the following argument, identify the premise and conclusion, explain…
The premise is "prison overcrowding is a crisis". The conclusion is "capital punishment must be used to reduce the overcrowding". The argument is deceptive because it artificially…
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9. the diagram below shows a model of the moons orbit around earth. let…
B. 15 days
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8. which sequence of moon phases could be observed from earth during a …
C.
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in the following argument, identify the premise and conclusion, explain…
B. The argument attempts to evoke an emotional response instead of using evidence to support the conclusion.
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analyze this: a rightward force of 81.1 n is applied to a 5.5 - kg obje…
\(F_{norm}=53.9\ N\), \(F_{frict}=28.1\ N\), \(F_{app}=81.1\ N\), \(F_{grav}=53.9\ N\), \(m = 5.5\ kg\), \(a\approx9.64\ m/s^{2}\), \(F_{net}=53\ N\)
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analyze this: a frictional force acts upon a 30.1 kg rightward - moving…
\(m = 30.1\space kg\) \(a = 6.88\space m/s^{2}\) \(F_{grav}=294.98\space N\) \(F_{norm}=294.98\space N\) \(F_{frict}=207.088\space N\) \(F_{net}=207.088\space N\)
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fill in the blank question the dimensionless constant, depending on the…
coefficient, static, friction
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fill in the blank question the force exerted on one surface by a second…
static friction
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analyze this: a frictional force of 115.5 n acts upon a 14.05 kg rightw…
The values in the diagram are consistent with the calculations. The frictional force \(F_{frict}\) (which is the net force \(F_{net}\)) is \(115.5\space N\), the mass \(m = 14.05\…
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multiple select question select all that apply which of these are types…
static friction, kinetic friction, dynamic friction
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true or false question true or false: friction always opposes motion. o…
False
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the trailing brake shoe, used in the leading - trailing drum brake syst…
B. False
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multiple choice question kinetic friction is the force exerted on one s…
are moving.
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multiple choice question the coefficient of static friction is a dimens…
before motion begins.
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what are the two types of drum brake assemblies? a) duo - servo b) fixe…
A. Duo - servo, C. Leading - trailing
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analyze this: a frictional force of 115.5 n acts upon a 14.05 kg rightw…
\(F_{norm}=137.69\space N\), \(F_{grav}=137.69\space N\), \(m = 14.05\space kg\), \(a\approx - 8.22\space m/s^{2}\), \(F_{net}=115.5\space N\)
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technician a says the leading - trailing adjuster is activated when the…
B. Technician B
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technician a says on the leading - trailing drum brake system the brake…
B. Technician B
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technician a says the primary shoe of the duo - servo drum brake system…
C) Both Technician A and B
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technician a says that a fixed caliper design doesnt use anti - rattle …
A. Technician A
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rear disc brake assemblies typically include a built - in parking brake…
A. True
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what are the two types of disc brake rotors? a) floating b) solid c) fi…
B. Solid, D. Vented
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technician a says rear disc brake calipers may include a built in parki…
C) Both Technician A and B
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what are the two types of disc brake calipers? a) fixed b) solid c) sus…
A. Fixed, D. Floating
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a 100 kg crate is lifted vertically by a crane. the crane applies an up…
net force \(= 20\space N\) acceleration \(=0.2\space m/s^{2}\) gravitational potential energy \(=9800\space J\)
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average temperature in bangor, maine average precipitation in bangor, m…
On average, the summer months are hotter and drier than the winter months.
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in the following argument, identify the premise and conclusion, explain…
A. The premise and conclusion essentially say the same thing.
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question 13 (2.5 points) requesting to amend a medical record was a fea…
E. both B and C.
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laurie throws a tennis ball toward her dog from a height of 4.5 ft. the…
The system of equations is \(h=-16t^{2}+18t + 4.5\) and \(h=-16t^{2}+21t + 1.5\). The \(t\) - coordinate of the solution represents the time when the height of the tennis ball is …
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laurie throws a tennis ball toward her dog from a height of 4.5 ft. the…
\(h=-16t^{2}+18t + 4.5\) and \(h=-16t^{2}+21t + 1.5\)
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average temperature in little rock, arkansas average precipitation in l…
Summers have higher temperatures and slightly less precipitation than winters.
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average temperature in cape town, south africa average precipitation in…
Summers have higher temperatures and less precipitation than winters on average.
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a 60 n force acts on a 15 kg object. find the acceleration. equation: f…
The acceleration is \(4m/s^{2}\). For the fill - in - the - blanks: 1. According to \(F = ma\) (\(m\) constant), \(a=\frac{F}{m}\), so as \(F\) increases, \(a\) increases. 2. Acco…
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which statement best describes the climate of london? hint: summers in …
Summers have higher temperatures and less precipitation than winters on average.
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part b: calculating net force (5 points - 1 point each) instructions: c…
Diagram 1: \(10\space N\) Diagram 2: \(30\space N\) Diagram 3: \(6\space N\) Diagram 4: \(10\space N\) Diagram 5: \(18\space N\)