物理
力学、受力分析、電気、式を使った解法。
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how can a food handler prevent food - to - food cross - contamination? …
B. Proper separation and storage of potentially hazardous/high - risk foods, C. Availability of multiple clean utensils or frequent cleaning and sanitizing of the same utensil
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how can a food handler prevent food - to - food cross - contamination? …
B. Proper separation and storage of potentially hazardous/high - risk foods, C. Availability of multiple clean utensils or frequent cleaning and sanitizing of the same utensil
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2. a vibrating source with a frequency of 50.0 hz produces water waves …
\(150\space m/s\)
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if a force of 250 n acts on a 50 kg object for 10 seconds, and the obje…
\(52\space m/s\)
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which of the following is an example of indirect contamination: the acc…
The transfer of pathogenic bacteria from a knife used to cut raw poultry to salad greens
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1. a vibrating source with a frequency of 30.0 hz produces water waves …
The speed of the waves is \(1.5\space m/s\)
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true or false: indirect contamination is the most common form of cross …
False
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true or false: the three components of the cycle of transmission are: f…
False
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true or false: direct contamination results from raw meats or their jui…
True
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you have just sliced a raw whole beef cut on a meat slicer. now youre g…
cross - contamination
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a 25 kg object experiences a force of 50 n for 4 seconds. if it starts …
\(8\ m/s\)
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a 0.145 kg baseball is thrown with an acceleration of 25 m/s². what for…
\(3.625\space N\)
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a 1250 kg car traveling at 15 m/s comes to a complete stop in 5 seconds…
\(3750\ N\)
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the particles in both solids and liquids are arranged close together. b…
| | Solid | Liquid | |--|--|--| | Particles always stay near other particles | ✔️ | ✔️ | | Particles move around one another | ❌ | ✔️ | | The substance's shape does not depend on …
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a 75 kg hockey player is skating at 4 m/s and increases to 7 m/s over 3…
$75\ N$
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if a 1200 kg car accelerates from 0 m/s to 25 m/s in 8 seconds, what is…
The net force on the car is \(3750\space N\). The force on the hockey - player is \(75\space N\)
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when an f - 14 airplane takes off an aircraft carrier, it is catapulted…
\(1115365\ N\)
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a sports car accelerates from rest to 27 m/s in 6.3 seconds. the car ex…
\(958\ kg\)
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a weightlifter can lift a set of 91 kg barbells above his head with an …
364 N
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a weightlifter can lift a set of 91 kg barbells above his head with an …
\(1255.8\space N\)
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a comet is a meteoroid that travels through earths atmosphere and hits …
small object made of ice and dust that orbits the Sun and forms a coma as it approaches the Sun.
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a sports car accelerates from rest to 27 m/s in 6.3 seconds. the car ex…
\(958\space kg\)
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a scientist discovers a new body between the orbit of neptune and the k…
The object is a moon, not a dwarf planet.
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mischka is an amateur astronomer. using her telescope, she looks out pa…
a comet
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a net force of 16 n causes a mass to accelerate from rest to 10 m/s in …
For the first problem: \(3.2\space kg\) For the second problem: \(1255.8\space N\)
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a scientist discovers a deep bowl - like divot under the ocean off the …
a meteorite
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abdel is an astronomer who has been observing objects that orbit the su…
a new dwarf planet
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multiple choice 1 point read these sentences: \when you put an ice tray…
a fluid, or something that flows
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which terms describe space objects that are small chunks of rock and de…
meteoroids, meteors, meteorites
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4 the electricity is out all over town this morning and your friends ca…
1. dormir _X_ 2. envoyer des e - mails 3. écouter la radio 4. regarder la télévision 5. dessiner _X_ 6. lire un roman _X_ 7. parler avec des amis _X_ 8. regarder un film 9. surfer…
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a snowmobile with mass 175 kg exerts a force of 85 n in 12 s. the final…
The initial velocity of the snowmobile is \(24.17\space m/s\)
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where is the oort cloud located? in the innermost region of the solar s…
In the outermost region of the solar system, beyond Neptune.
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aurora observes a streak of light in the sky and says she is seeing a s…
A. a falling star
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a snowmobile with mass 175 kg exerts a force of 85 n in 12 s. the final…
\(24.17\space m/s\)
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10. a negative charge of - 7.0 x 10^{-11} c and a positive charge of 1.…
The force between the two charges is \(4.76\times 10^{-15}\ N\)
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which statement describes the oort cloud? it is shaped like a donut. it…
It contains huge icy objects.
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10. which of the following is a potential consequence of eating disorde…
severe physical disabilities
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where is the oort cloud located? o between the orbit of mars and the or…
beyond the Kuiper belt, at the farthest end of the solar system
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a sled with mass 50 kg has a starting velocity of 8 m/s. it exerts a fo…
\(9.2m/s\) ---
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instructions read each question carefully and choose the one best answe…
Sun → Producers → Consumers → Decomposers
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use the information from the article to answer the question. neos when …
near - Earth objects
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8. which of the following is not a common eating disorder? * anorexia r…
Orthorexia
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7. what is the most effective way to measure body composition? * body m…
Underwater Weighing
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7 nominal (nômə-nəl) -adjective • except for a nominal registration fee…
7. B. very little. 8. B. main. 9. A. a requirement. 10. C. an economic setback. Matching: 1. constitute 2. default 3. predominant 4. prerequisite 5. confiscate 6. decipher 7. nomi…
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6. a high percentage of body fat can lead to * longer life elimination …
health risks
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a racecar increases its speed from 35 m/s to 45 m/s in 10 s. it has a m…
\(500\ N\)
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adapted from humboldt in the new world by anna marıa gillis alexander v…
C. There were many misconceptions about Latin America in other parts of the world at the time.
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9. two charges that are both - 3.0 c push each other apart from 2 meter…
For problem 9: $2.025\times10^{10}\ N$ For problem 10: $-4.76\times10^{-15}\ N$
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which statement describes how geologists use data from seismographs to …
They often compare information from all over the world.
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a racecar increases its speed from 35 m/s to 45 m/s in 10 s. it has a m…
The force used by the racecar is \(500\ N\). The time taken by the runner is \(6\ s\).
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how do geologists study direct evidence of earths interior? by collecti…
A. by collecting drill core samples of Earth's crust
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4. why is it important to maintain a healthy body composition? * o to i…
to reduce the risk of diseases
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what may occur when convergent boundaries interact? formation of island…
formation of island chains
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which is one type of evidence that geologists usually study? location o…
B. waves that move through Earth
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a skateboarder uses a force of 17 n to increase his speed from 4 m/s to…
\(20.4\ kg\)
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mica and calcite are good examples of earth minerals true false
True
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a truck with a mass of 870 kg increases its speed from 20 m/s to 32 m/s…
\(652.5\ N\)
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true or false a lot of fossils are found in sedimentary rocks true fals…
1. True 2. False
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which statement describes one of wegeners ideas that contributed to the…
The continents were once connected as one landmass.
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24. during an earthquake in japan, seismic waves travel through: only a…
The solid rock and soil of Earth.
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2. which of the following is not a method to measure body composition? …
Blood pressure measurement
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what does the presence of new rock near an oceanic ridge indicate? ther…
B. There is evidence of seafloor spreading.
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which equation represents newtons second law of motion? a $a = \\frac{f…
A. \(a = \frac{F}{m}\)
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a hummingbirds wings beat 80 times per second, while an eagles wings be…
The hummingbird, because its wings vibrate faster.
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which of these is not a type of rock igneous metamorphic sedimentary fo…
fortified
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which statement describes the damage that results from earthquakes? amo…
A. Amount of damage can be used to determine intensity.
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22. which type of wave can travel through empty space? seismic wave sou…
Electromagnetic wave.
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which equation correctly represents newtons second law of motion? a net…
B. acceleration = net force / mass
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what causes the force that pushes magma from the magma chamber through …
C. expanding gases
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21. what does the cochlea do? transmit sound vibration to the ear drum …
convert soundwaves into electrical signals
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which statement describes one event that happens at deep - ocean trench…
D. Denser plates slide under lighter plates
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if the two forces shown in the diagram below are applied to the 2 kg ba…
d \(5.0\,\text{m/s}^2\) to the right
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20. which of the following is the correct relationship between the prop…
As wavelength decreases, frequency increases.
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1. body composition is * the makeup of body tissues including muscle, b…
the makeup of body tissues including muscle, bone, fat, and other tissues
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tony has a mass of 50 kg and his friend sam has a mass of 45 kg. if bot…
A. Sam will have greater acceleration for a given amount of force.
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the image shows the great rift valley in africa, an example of a rift v…
The rift valley formed when the crust pulled apart.
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if the two forces shown in the diagram below are applied to the 2 kg bl…
\(d\). \(3.0m/s^{2}\) to the right
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19. why do sound and heat travel faster through a solid than they do th…
The atoms in the solid object are closer together than the atoms in the air.
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if a 0.5 kg basketball accelerates at 2 m/s², then what is the net forc…
C. \(1\space N\)
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use the information from the article to answer the question. asteroids …
- formed of ice, rock, and dust - develop tails near the Sun
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newtons second law states that the acceleration of an object equals the…
mass
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18. use the illustration above. what parts of the wave are labeled x an…
\(X\) represents the wavelength; \(Y\) represents the rarefactions.
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according to newtons second law of motion, if the net force acting on a…
acceleration
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which is one piece of evidence of seafloor spreading? fossil material c…
C. drilled core samples
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17. when sound waves hit the eardrum, what happens next in the hearing …
The eardrum vibrates and passes the vibrations to the tiny bones in the middle ear.
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if a net force of 55 n is applied to an object with a mass of 11 kg, th…
C. \(5\space m/s^{2}\)
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which statement explains something that the fossil record indicates? ea…
Mass extinctions have occurred several times on Earth.
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if a net force of 24 n is applied to an object with a mass of 6 kg, the…
D. \(4\space m/s^{2}\)
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how do organisms form carbon films? organisms turn into rock. residue i…
Residue is left on rocks when organisms decay.
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which feature of earth is created at mid - ocean ridges? new island cha…
new ocean floor
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coulombs law quiz review (quiz will be 10/27) 1. two charges that each …
\(8.1\times 10^{4}\ N\)
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which statement best describes the theory of plate tectonics? plates so…
Sections of Earth's continents are in slow, constant movement.
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in which layer of the earth does the motion of the convection currents …
mantle
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use the following graphic organizer to answer the question.which of the…
C. Register and vote
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which statement describes seismic waves? they carry energy. they move i…
They carry energy.
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who should you contact first if you witness or are involved in a needle…
Head nurse
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identify the choice that best completes the statement or answers the qu…
Never put your hand into a sharps container.
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review the details below. • skiers and snowboarders can check current w…
Skiers and snowboarders must be aware of snow conditions before going into avalanche terrain.
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reporting a needlestick injury: is not necessary if first aid is render…
ensures the injured party is tested and treated appropriately.
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6. a hiker shouts toward a cliff that is a distance of 685 meters away.…
a) The speed of sound is \(342.5\space m/s\) b) The frequency is approximately \(456.7\space Hz\) c) The period is approximately \(0.0022\space s\)