物理
运动学、受力分析、电学与方程推导。
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the loudness, l, measured in decibels (db), of a sound intensity, i, me…
90 times louder
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16. 3. a(n)____is a graphic recording of the contraction of a muscle as…
EMG
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15. the ___ is the sheath of connective tissue that surrounds bundles o…
perimysium
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14. the ability of a skeletal muscle to receive and respond to a nerve …
excitability
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match the following terms and identifying phrases. myositis sarcopenia …
1. hypotonia 2. adhesion 3. tetany 4. myositis 5. atrophy 6. sarcopenia 7. hypertrophy 8. myoparesis
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11. the ribs that attach to the cartilage of the ribs above them are ca…
false ribs
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10. the ___ bones are the cheekbones. (1 point) palatine maxillary zygo…
zygomatic
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7. the ____ is an area of cartilage tissue that is consistently replace…
epiphyseal plate
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6. the vertebral column is made up of 12 bone segments. true false clea…
False
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5. in synovial joints, lubricating fluid is contained in a bursa sac.
B. False
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select the correct text in the passage. which sentence conveys the main…
I am writing regarding a problem with my electric bill.
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4. bone is a dense connective tissue composed of collagen fibers and mi…
True
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overusing resources like forests, water, or fish can cause them to run …
Depletion
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a sudden, destructive, an violent change in the environment caused by n…
Natural Disaster
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select the correct answer. which sentence is likely to be the opening o…
B. My sincere congratulations on your promotion.
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which of these occurs when an organism absorbs a toxic substance at a r…
bioaccumulation
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when substances bioaccumulate in a living organism, in what part of the…
liver
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ddt lasts a long time in the environment when an animal continues to ea…
Bioaccumulation
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ddt lasts a long time in the environment. it can magnify up the food ch…
Biomagnification
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prefix that means within or into combining form that means arm suffix t…
A. intra -: prefix that means within or into B. meta -: prefix that means change or beyond C. supra -: prefix that means above D. brachi/o: combining form that means arm E. chondr…
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cue column: 11. complete the passage. notes section: ______ and ______ …
Mass, charge, has positive values (or is non - negative), be positive, be negative
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select yes for the conditions that promote the process of fossilization…
Desert with high Winds: No Anoxic Swamp: Yes Low Energy Environment: Yes Dry Environments: No Rushing River: No
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determine whether the method listed is an absolute or relative dating m…
- Law of Superposition: Relative - Uranium - Lead Dating: Absolute - Speciation: Relative - Fossilization: Relative - Stratigraphy: Relative
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determine whether the method listed is an absolute or relative dating m…
- Law of Superposition: Relative - Uranium - Lead Dating: Absolute - Speciation: Relative - Fossilization: Relative
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question 3. the average lead for a mechanical pencil is 6.0 cm long whe…
\(\frac{1\mathrm{in.}}{2.54\mathrm{cm}}\)
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20. which of the following best defines an index fossil? the fossilized…
The fossilized remains of an organism that is useful for dating and correlating the strata in which it is found due to its wide geographic distribution and short existence in geol…
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19. the principle of faunal succession is the foundational concept that…
Faunal succession describes the specific, predictable order in which fossil species appear and disappear in the rock record, and a biozone is a formal ordering of the fossils defi…
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18. what is the primary function of relative and absolute dating in cre…
A. Relative dating establishes the chronological sequence of events, while absolute dating provides specific numerical ages for those events, together creating the organized frame…
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14. by applying the principles of faunal succession and the law of supe…
The relative age of the layers and how the types of environments changed over time
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select yes for the conditions that promote the process of fossilization…
- Desert with high Winds: No - Anoxic Swamp: Yes - Low Energy Environment: Yes - Dry Environments: No - Rushing River: No - Coarse Sediment: No
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how is coulombs law related to newtons law of gravitation?
Both are inverse - square laws. Coulomb's Law (\(F = k\frac{q_1q_2}{r^{2}}\)) for electrostatic force and Newton's Law of Gravitation (\(F = G\frac{m_1m_2}{r^{2}}\)) for gravitati…
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determine whether the method listed is an absolute or relative dating m…
- Law of Superposition: Relative - Uranium - Lead Dating: Absolute - Speciation: Relative - Fossilization: Relative - Stratigraphy: Relative - Faunal Succession: Relative
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determine whether the method listed is an absolute or relative dating m…
- Law of Superposition: Relative - Uranium - Lead Dating: Absolute - Speciation: Relative - Fossillization: Relative - Stratigraphy: Relative
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10. which statement is true? a. room temperature is approximately 23 °k…
The final temperature of the system is approximately \(24.3^{\circ}C\)
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8. what is the equation for coulombs law? 9. how many electrons is one …
8. The equation for Coulomb's Law is \( F = k\frac{q_1q_2}{r^{2}}\). 9. One Coulomb is equal to \( 6.25\times 10^{18}\) electrons.
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match the relative dating principle with its description law of superpo…
- Sediment is layed down in a continuous layer until it tapers off or cut off by a barrier: Law of Lateral Continuity - Sediment is deposited in flat, horizontal sheets. If they a…
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8. how is radiometric dating used in the relative dating of different s…
It provides the dates for specific rock layers which can then be used to correlate and calibrate relative dating principles like the Law of Superposition.
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7. radiometric dating is used in relative dating methods. true false cl…
False
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5. what is the definition of half - life the time it takes for a substa…
The time it takes for a substance to reduce to half of its original amount
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4. in the radiometric dating method of potassium - argon dating, which …
Argon
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3. in the radiometric dating method of potassium - argon dating, which …
Potassium
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2. which radiometric dating method is used to date the oldest rocks? ti…
Uranium - Lead
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1. radiometric dating provides scientists with an accurate dating metho…
None of the above
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describe the relationship between magnitude of charge and distance betw…
The electrostatic force between charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between t…
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read the two passages from the novel the queens gambit. in passage 1, t…
Explanation Format
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which inference about the relationship between pilots and residents is …
C. Pilots felt residents were silly for protesting jet noise.
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explain how gravitational force is affected if the mass of both objects…
The gravitational force remains the same.
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force on m1 by m2 = 0.000 000 166 852 n force on m2 by m1 = 0.000 000 1…
The force between the two objects will be ten times larger.
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thermal energy (heat) always flows in multiple directions. from lower t…
from a higher temperature to a lower temperature.
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in the simulation, adjust both mass and distance and observe the result…
# Explanation: ## Step1: Recall the formula for gravitational force The formula for gravitational force is \( F = G\frac{m_1m_2}{r^2} \), where \( G \) is the gravitational consta…
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in the simulation, explore how gravitational force varies with changes …
A. Gravitational force is directly proportional to mass and inversely proportional to the square of the distance.
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in the simulation, experiment with the gravitational force when the dis…
C. The gravitational force becomes very weak.
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force on m1 by m2 = 0.000 000 166 852 n force on m2 by m1 = 0.000 000 1…
A. Large masses and small distance.
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in the simulation, adjust the distance and observe the effect on the gr…
B) The gravitational force decreases by a factor of 4.
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in the simulation, change the mass of the two objects and observe the g…
B. The gravitational force increases by a factor of 9.
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1. explain electrostatic charge regarding attraction and repulsion. 2. …
1. Opposite charges attract, like charges repel. 2. Coulomb (with Coulomb's Law).
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which statement best explains how the location of sullys childhood home…
B. He lived near an Air Force base and was able to see and hear jets up close.
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fill - in - the - blank: electric force becomes (stronger / weaker) whe…
stronger; weaker
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modified true/false indicate whether the statement is true or false. if…
1. True 2. True 3. e. \(\frac{N\cdot m}{s}\) 4. c. Doubled 5. c. The amount of energy required to apply one Newton of force for one meter. 6. d. Some gravitational potential energ…
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pregunta 3. una roca tiene una masa de 240 gramos y ocupa un volumen de…
$3$ g/cm³
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pregunta 2. una muestra de un metal tiene una densidad de 7.5 g/cm³ y u…
$20$
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galena is a mineral that creates smooth, flat surfaces when it breaks. …
A. has cleavage and is soft
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mohs scale is used to measure which property of minerals? choose one op…
B. hardness
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all of the following words can describe a minerals luster except_______…
B. brittle
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a minerals streak is _________. choose one option a always the same as …
D. the color of its powder
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quiz question 6 of 10 immersive reader cleavage and fracture describe _…
C. how minerals break
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question 3. a rock has a mass of 240 grams and occupies a volume of 80 …
\(3\)
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read the description below. use the definition of minerals to choose th…
C. Portland is not a mineral because minerals are not man - made.
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do now 3 (module 1 - lesson 3) question 1. a container holds 15 ml of o…
\(13.8\space g\)
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read the description below. use the definition of minerals to choose th…
C. Ivory is not a mineral because minerals don't come from living things.
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pumice is a rock that forms during volcanic eruptions from lava that co…
A. igneous
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quartzite is a rock that can form at the boundaries of tectonic plates.…
C. metamorphic
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diorite is a rock with crystals. it can form when molten lava cools dow…
A. igneous
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coquina is a rock made of small pieces of broken shells. ocean waves br…
B. sedimentary
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read the excerpt from \harrison bergeron.\ \thats all right-\ hazel sai…
A. They illustrate the absurdity of trying to make everyone the same
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which of the following would be a clue that a rock is metamorphic? choo…
D. It has ribbon - like layers, or bands.
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immersive reader which of the following would be a clue that a rock is …
B. It has small particles stuck together.
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read the excerpt from \harrison bergeron\ harriet had a perfectly avera…
by implying that forced uniformity interferes with individuals' intellectual development
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which of the following would be a clue that a rock is igneous? choose o…
A. It has crystals.
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which type of rock forms through weathering, erosion and deposition? ch…
B. sedimentary
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12. what is the kinetic energy of a 2,000 kg car moving at 10 m/s? 100,…
100,000 J
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which type of rock forms when an existing rock changes under extreme pr…
C. metamorphic
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11. if a cars kinetic energy is 100,000 j at 10 m/s, what will it be at…
\(400000\space J\)
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which type of rock was the first to exist on the planet? choose one opt…
A. igneous
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metamorphic rocks are a bit harder to identify because they can share t…
B. The rock has ribbon - like layers of bands.
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9. a 4 kg ball is rolling at 3 m/s. what is its kinetic energy? 10. an …
For problem 9: 18 J. For problem 10: 40 J (but if following the multiple - choice in the image for problem 9, the answer is 18 J).
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8. a 0.5 kg apple falls from a tree branch 8 meters high. what is its p…
39.2 J
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use the text below to answer the question. how can you tell if a rock i…
C. The rock crumbles easily in your hand.
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7. a person climbs a 5 m ladder. their mass is 60 kg. what is their pot…
2940 J
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we identify types of rocks by how the rocks form. if youre not sure wha…
A. The magma cooled too quickly for gas to escape.
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how have changes in the sahel impacted people living in the region? o i…
Desertification has reduced usable land and threatened traditional herding.
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6. a 0.1 kg tennis ball is moving at 20 m/s. what is its kinetic energy…
20 J
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what is a major challenge for agriculture in the congo basin despite it…
The region's soil has low fertility, limiting crop yields.
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the rock cycle describes the formation, breakdown and reformation of ro…
D. All of the above.
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5. what happens to kinetic energy when an object slows down?
The kinetic energy of the object decreases.
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4. a 60 kg skier stands 50 meters above the base of a slope. what is he…
29,400 J
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based on the map shown, what makes the climate patterns in africa uniqu…
Climate patterns within the continent are symmetrical north and south of the Equator.
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rocks change because of intense heat and/or pressure. the deeper a rock…
B. An igneous rock deep in the Earth is exposed to hot material.
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3. a 1,200 kg car is moving at 20 m/s. what is its kinetic energy? 12,0…
240,000 J
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question 5. oil and water are added to a beaker. the beaker in the figu…
B. Oil is less dense than water. # Question 6