物理
運動學、受力分析、電學與方程推導。
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if a scientists theory is predicated on a colleagues experimental findi…
the theory is based on the colleague's findings
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given the equation, a = f/m, describe how the changing mass would affec…
Increasing the mass of the object would decrease its acceleration.
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who might want his electronic devices to come preprogrammed? someone wh…
someone who doesn't have time to set up his own electronics
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which box (20 kg or 5 kg) would experience a higher rate of accelerate …
5 kg box
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which box (a or b) would experience a greater acceleration based on the…
C. B
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what is the purpose of a preoperative procedure? to help a patient reco…
to ready a patient for surgery
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1) if the balance was not tared to display 0.00 g prior to adding the c…
C. The mass of the cube can be calculated. The mass displayed on the balance before the cube was added will need to be subtracted from the mass displayed on the balance with the c…
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below is a diagram showing a person pushing a box across a realistic fl…
Tension
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what should new employees ask their manager during the first few days o…
Request guidance on workplace expectations
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what did the nile leave behind when it flooded? loess sand rich soil la…
rich soil
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prompt cancer is a disease that impacts many americans. there are diffe…
Adopt a healthy diet, engage in regular physical activity, avoid tobacco, limit alcohol, protect skin, get vaccinated, undergo screenings, manage weight, and reduce environmental …
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2. what strengthens factual evidence? a. emotional connection b. person…
d. Verification
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a box with a mass of m is placed on a frictionless table, as shown belo…
For Trial 1, the net force is \(10N\). For Trial 2, the net force is \(30N\)
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7. a caterer charges $120 to cater a party for 15 people and $200 for 2…
The linear equation is \(y = 2.5x+20\). The revenue for 15 videos rented is \(\$57.50\). The number of videos rented when the payment is \(\$67.50\) is \(19\).
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the person in orange pushes the box to the right with 50 n of applied f…
$50N$
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yoko: i think the ball has no energy because it is not moving. caleb: i…
Kawasi. Because gravitational potential energy \(U = mgh\), and as the ball is farther away from the Earth's surface (\(h\) increases), its gravitational potential energy (a form …
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which statement best supports militarization? o “our top priority shoul…
"We must strengthen the armed forces and build strong defenses against invasion."
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when a swimmer pushes water backward with her arms, the water exerts an…
Newton's Third Law.
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a construction worker pushes a 200 kg wheelbarrow with a net force of 5…
Newton's Second Law of Motion.
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note - the \monthly costs\ total will vary each month. electricity cons…
(a) Gere: Monthly costs \(\$394.37\), Money left over \(\$400.63\) (b) Smith: Monthly costs \(\$434.48\), Money left over \(\$521.52\) (c) Brown: Monthly costs \(\$381.22\), Money…
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a satellite is coasting through deep space at a constant velocity of 7,…
Newton's First Law of Motion.
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if the box is moving towards the right, how will its mot change? 25 n 1…
It will slow down
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if an object is acted upon by balanced forces, what is the resulting st…
The object will either remain at rest (if it was initially at rest) or move with a constant velocity (if it was already in motion).
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what is the magnitude of the net force acting on the box? 25 n 15 n 25 …
\(10N\)
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a boats engine provides a forward thrust of 2000 n, and the water resis…
\(500\ N\)
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two children push a toy car in opposite directions along a straight lin…
The magnitude of the net force is $5N$ and the direction is East.
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suppose that a new temperature scale has been devised on which the melt…
\(71.7\)
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an airplane is flying at a constant speed. the force exerted by the air…
Drag
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identify each scenario as having balanced or unbalanced forces. the sum…
1. Balanced forces 2. Balanced forces 3. Unbalanced forces 4. Unbalanced forces 5. Balanced forces
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a bucket is being lifted straight up at a constant velocity by a single…
Tension
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a block rests on a horizontal table. the force exerted by the table on …
Normal force
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a 20 kg bicycle is pushed with a net force of 10 n. what is the resulti…
\(0.5\space m/s^{2}\)
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a net force of 100 n is applied to an object, causing it to accelerate …
\(25\space kg\)
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a 5.0 kg bowling ball is accelerating at a rate of 2.5 m/s2. what is th…
\(12.5\space N\)
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the principle that forces always occur in pairs, and that for every act…
Newton's third law
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what force is shown by the arrow? o tension o normal o air resistance o…
normal
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which of newtons laws describes the quantitative relationship between a…
Newton's Second Law of Motion.
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which of newtons laws of motion states that an object at rest stays at …
Newton's First Law of Motion.
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which statement describes a major drawback of the bohr model that cause…
It contradicted the Heisenberg uncertainty principle.
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chapter 3 linear motion acceleration of free fall a rock thrown from th…
1. \( 10\), aceleración. 2. tiempo. 3. \( 70\), \( 245\), \( 10\).
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the emission spectrum of hydrogen shows discrete, bright, colored lines…
Electrons cannot exist in locations other than in specific orbits.
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light of a certain energy shines on a metal and causes electrons to be …
the use of light that has a lower frequency
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which statement about niels bohrs atomic model is true? higher orbits h…
Each orbit has a specific energy level.
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this flow chart shows the amount of energy that is emitted by each type…
C. bright red light
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3. what can you determine about the speed of the blue car? a the blue c…
A. The blue car's speed is the same as the red car's speed.
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4) high - intensity movements like climbing some stairs * support heart…
A. support heart health
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1) to lower your risk of cardiovascular problems it is suggested you ex…
1. 1 min 30 sec to 4 minutes 2. Both 3. Walking on up a hill
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aiden collected canned goods for a neighborhood service project. he pul…
B. When the speed tripled, the kinetic energy increased by a factor of 9.
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a change in which property of light will have no effect on whether or n…
intensity
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in the given example, what is the speed of ultrasound in water? 1480 me…
1480 meters per second
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this position requires calculating the requirements for the amount of m…
Computer Systems Analyst
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what is a website option that allows the site to emember\ users. url co…
Cookie
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a medical student is writing a report on the official five neglected pa…
1. Prevalence 2. Prevalence 3. Transmission 4. Treatment
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you want to measure billies brain activity from the visual cortex, whic…
ElectroEncephaloGraphy (EEG)
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3/5 how is the distance from the ship to the sea floor calculated us ec…
By using the formula: distance = speed x time
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name: date: read the story of the ebola epidemic and determine the chai…
Susceptible Host
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plan an investigation: question: imagine you want to test how much forc…
1. How much force does it take to break a rubber band? 2. I think that as I apply more force, the rubber band will stretch. But once the force exceeds a certain value, it will bre…
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all layers have the same fossils different fossils appear in different …
different fossils appear in different layers
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multiple - choice question what is the purpose of the tympanic membrane…
It is the eardrum.
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which of the following lists the three types of muscles in the human bo…
Skeletal, smooth, cardiac
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drug that activates the central nervous system, such as amphetamines an…
stimulant
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practice it temporary cessation of breathing during sleep caused by a s…
sleep apnea
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for each statement about quality control processes, select true or fals…
1. It is important for both digital and physical products to have a quality control process: True 2. Government regulations should be considered when determining quality control s…
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practice it physical habituation to a drug where increased amounts are …
tolerance
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practice it drug, such as alcohol and barbiturates, that dampens centra…
depressant
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proposition that dreams represent the brains attempt to understand elec…
activation - synthesis hypothesis
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name 3 problems of the gilded age and what would be a possible governme…
1. Monopolies; enforce antitrust laws. 2. Labor exploitation; pass labor laws. 3. Political corruption; implement civil service reforms.
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17. which of the following contains a correction that is needed in sent…
No correction needed (the original sentence is correct). ### Question 18
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by the associated press to ric, che, september, twenty - northwest in f…
The Germans began to retreat or move backwards on the Western Front.
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practice it addictive drug that has pain - relieving and sleep - induci…
narcotic
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what franchise in russia was forced to close its doors when it was disc…
None of the above
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color by number life cycle of a star name: date: per: directions: answe…
1. C. nebulas 2. C. mass 3. B. nuclear fusion 4. A. main sequence 5. C. red giant 6. A. supernova 7. B. black hole 8. A. white dwarf 9. B. white dwarf 10. B. red, orange, yellow, …
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question 1-13 what is empathy? ○ ignoring the other persons emotions. ○…
Understanding and sharing the feelings of another person.
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which of the following materials are used to grab and/or push material …
forceps
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question 15 what is the name of the position that requires designing of…
Web Developer
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what occupation did john adams father have during the spring and summer…
farmer
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multiple - choice question which of the following materials are used to…
scissors
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what is an electronic community online similar to a place where you han…
All of the above
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1. explain the difference between gravitational potential energy, elast…
Gravitational potential energy depends on position (book on shelf), elastic on shape (stretched rubber band), kinetic on motion (moving car).
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what is the process called when ships use ultrasound to find the depth …
Sonar
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the force of the water broke the main mast off at the deck. patricias f…
1. A. Patricia and nature. 2. C. because the storm had damaged it. 3. B. Patricia's relationship with her father. 4. B. It creates concern about the characters' welfare.
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what is the primary purpose of using ultrasound in ships? to locate obj…
To locate objects beneath the water surface
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do hikers have special nutritional needs? indeed! complex carbohydrates…
D. The hiker's diet is geared towards certain set of people. It is created for people who are interested in increasing muscle mass, burning calories, and losing weight.
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whats so special about a bunch of green beans called edamame? its not j…
1. C. Soy products contain isoflavone. This anti - cancer element can help reduce the risk of cancer. 2. C. Edamame is another name given to soybeans—a seed that promotes overall …
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my assignments should never near speaking to them again. they saw her o…
C. depressed and lonely
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6. choose a real - world system (for example, a pendulum, bungee jump, …
A pendulum: At the highest point, potential energy is maximum (\(PE = mgh\)) and kinetic energy is zero. At the lowest point, kinetic energy is maximum (\(KE=\frac{1}{2}mv^{2}\)) …
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ashley wants the water heater to provide enough hot water for all four …
EinsteinSolar
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match the energy type to the correct description. clean but limited by …
1. clean but limited by the night and weather - solar power 2. renewable but noisy and harms birds - wind power 3. efficient but produces radioactive waste - nuclear power 4. rene…
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17. which of the following contains a correction that is needed in sent…
17. D. wearing colorful traditional Mexican clothing. 18. C. Frida painted approximately two hundred works in her career. 19. B. Many of her paintings show her interpretation 20. …
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looking at the dam picture below, which of the following is a negative …
It can disrupt river habitats and force people and animals to relocate.
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5. (4 points) a constant force is applied to a crate resting on the flo…
a. \(20.0\ m/s^{2}\) b. \(2.5\ m/s^{2}\) c. \(20.0\ m/s^{2}\) d. \(10.0\ m/s^{2}\)
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multiple - choice question increase and decrease list level buttons are…
Home, Paragraph
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13. if a revision is needed, which of the following is a correct revisi…
D. no revision needed 14.
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a 5.0 ft person weighs 159 lb. express this persons height in meters an…
Height: \(1.5\ m\), Weight: \(72.1\ kg\)
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use the pie graph to answer the question. united states energy consumpt…
oil, natural gas, and coal
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which country has the largest oil reserves according to the oil map? un…
Venezuela
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after mining most of the chocolate chips, the cookie surface became cru…
Soil erosion and habitat destruction caused by mining
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what was the ultimate result of the final solution? large numbers of pe…
Millions of Jewish people were murdered.
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timber use (by percent) which percent of timber is specifically used fo…
43%
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4. (9 points) an apple crate of mass 23 kg accelerates along a surface …
- (a) Draw four forces as described above (gravitational, normal, applied, frictional) on the free - body diagram. - (b) \(225.4\ N\) - (c) \(13.727\ N\)