物理
運動學、受力分析、電學與方程推導。
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a guitar string is plucked. what best describes the formation and trans…
The string vibrates the surrounding air, which produces a longitudinal wave.
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select the correct answer. what is the ideal duration of one complete m…
C. 28 days
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select the correct answer. martha has been having difficulty swallowing…
A. endoscopy
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how many wavelengths are seen in this image of a sound wave? three four…
four
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question 36 lactose intolerance is caused by an immune response. true f…
False
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type the correct answer in the box. spell all words correctly joanne ha…
breast reconstruction
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type the correct answer in the box. spell all words correctly which par…
kidneys
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question 35 which of the following is correct regarding physical hazard…
Bones in food come from the food product.
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type the correct answer in the box. spell all words correctly. rita gav…
contraceptive pills
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select the correct answer. what part of the excretory system excretes c…
B. lungs
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select the correct answer. ten - year - old myles has started growing m…
D. gigantism
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which of the following foods is not typically fortified? milk cereal pr…
Produce
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two wave pulses move toward each other along a rope. which diagram show…
Third option (the one with a flat - topped rectangular - like shape)
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select the correct answer. on top of which organ is an adrenal gland lo…
C. kidney
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study the image below. the straw appears to \bend\ because of absorptio…
refraction
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type the correct answer in the box. spell all words correctly which hor…
Progesterone
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question 33 allergies always occur in the first two years of life. true…
B. False
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select the correct answer. marrisa is experiencing symptoms such as swe…
B. hyperthyroidism
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question 32 which food additive is used to prevent rancidity? saccharin…
C. BHA/BHT
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a transverse wave is shown. what is the amplitude of this wave? 1.3 cm …
2.1 cm
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what interaction causes the water to spread as they pass through the ro…
B. diffraction
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which organ is damaged by gluten in people with celiac disease? liver s…
Small intestine
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a student is performing an experiment comparing sound and light waves. …
Tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
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consider the intensities of the sounds listed below. which lists the am…
chainsaw, diesel truck, rustling leaves
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study the diagram. which correctly identifies the parts of a transverse…
A: crest B: amplitude C: trough D: wavelength
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what is the name of the perceived change in a sound waves frequency due…
B. Doppler effect
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which best describes the energy of a sound wave as it travels through a…
It decreases.
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drag each label to the correct location. match each model with its name…
| Image | Name of Model | Scientist who Proposed Model | | --- | --- | --- | | First image (Earth - centered) | geocentric system | Ptolemy | | Second image (Sun - centered) | hel…
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question 28 which of the following is the food that can prevent blindne…
Golden rice
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which voice can produce a pitch that has a speed of 343 m/s and a wavel…
bass, baritone, tenor, contralto
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ten students stand in a circle and are told to make a transverse wave. …
D. One at a time, each student lifts his or her hands up and then down.
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a hot metal bar is put into a cup of cool water. what are the signs of …
- \( q_{\text{water}} \) is \(+\), \( q_{\text{bar}} \) is \(-\) - \( w_{\text{water}} \) is \(-\), \( w_{\text{factory}} \) is \(+\) - \( q_{\text{steam}} \) is \(+\), \( w_{\tex…
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which best describes pitch? the amount of time taken for a longitudinal…
the number of cycles per second perceived by the human ear
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question 23 which of the following is true concerning gm crops? ○ a. gm…
D. A and B
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question 22 2 pts there are three vaccines that were made using gmo tec…
Pfizer covid vaccine
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add a comma, semicolon, or colon if needed. otherwise, submit the text …
I think some of the creepiest looking freshwater animals are: piranhas, electric eels, the goliath tiger fish, anacondas, and vampire fish.
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what is the average kinetic energy in joules (j) of an electron (mass 9…
\(8.0\times 10^{-18}\) (corresponding to the option \(8.0\times10^{-18}\))
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what is the wavelength of electromagnetic radiation which has a frequen…
671.6 nm
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add a comma, semicolon, or colon if needed. otherwise, submit the text …
Symptoms of Lyme disease, a bacterial infection transmitted by a certain type of tick, include: a skin rash around the area of the bite, fatigue, chills, fever, and muscle ache.
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which of the following kinds of electromagnetic radiation has the highe…
ultraviolet light
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the given number and type of solution(s). 29. ( a x^{2}+4 x+c = 0 ); tw…
A. two real solutions
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question 20 which of the following is not true regarding pesticide regu…
The Rotterdam convention requires the US to provide hazardous properties of pesticides prior to exportation.
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another property of longitudinal waves is wave speed. it is the distanc…
Eli creates a wave in the spring toy. The wave has a frequency of 2 hertz (cycles per second), a wavelength of 15 centimeters, and a wave speed of 30 centimeters per second.
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question 20 2 pts which of the following is not true regarding pesticid…
The Rotterdam convention requires the US to provide hazardous properties of pesticides prior to exportation.
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amoeba sisters: homeostasis & human body syste heather brown multiple-c…
enough insulin
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eli creates longitudinal waves in the spring toy. select the true state…
- If a longitudinal wave's frequency increases, the energy carried by the wave increases. - The matter that a longitudinal wave travels through is called the medium. - In a longit…
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does the following text have an inappropriate shift in verb tense? if s…
Dogs learn from the consequences of their actions, so rewarding a dog for good behavior reinforces that behavior.
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a photon strikes the surface of a block of metal and an electron is eje…
\(2.3\times10^{-15}\space J\) (Assuming there is a small error in the problem - solving process of the question - setter, and if we consider the formula \(E=\frac{hc}{\lambda}\) w…
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4) eli moves his hand back and forth slowly, creating a longitudinal wa…
The wavelength of the wave decreases and the frequency of the wave increases. As a result, the energy of the wave increases.
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amoeba sisters: homeostasis & human body syste heather brown multiple -…
"brings the body back to the set point (ex. a stable temperature)" is the correct answer.
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eli moves his hand back and forth, creating a longitudinal wave in the …
The amplitude of the wave increases. As a result, the energy of the wave increases.
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amoeba sisters: homeostasis & human body syste heather brown negative f…
True
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what is the wavelength, in nm, of radiation which has an energy of 3.37…
A. \(589.3\space nm\)
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question 19 1 pts an x - ray has a wavelength of 2.64 nm. what is the e…
\(7.52\times 10^{-17}\ J\)
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wave 1 wave 2 assuming the waves are traveling at the same speed, compa…
The amplitude is equal for both waves. The wavelength is greater for Wave 1. The frequency is greater for Wave 2.
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question 17 the fda establishes which pesticides can be used for which …
False
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question 16 some pesticides may harm non - target species such as bees …
True
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question 15 which of the following is a disease - prevention method whi…
Bednets
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another property of longitudinal waves is wave speed. it is the distanc…
Ell creates a wave in the spring toy. The wave has a frequency of 3 hertz (cycles per second), a wavelength of 10 centimeters, and a wave speed of 30 centimeters per second.
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does the following text have an inappropriate shift in verb tense? if s…
On July 26, 1948, President Truman signed Executive Order 9981; with this legally binding document, he desegregated the United States Armed Forces.
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question 14 2 pts which of the following is true regarding pesticides? …
E. A and C
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question 13 2 pts which of the following terms refers to the extent to …
A. Persistence
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which of the following measurements for pesticides refers to the amount…
ADI
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which of the following is a pesticide? o a. herbicides o b. insecticide…
E. A, B, and C
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550 nm electromagnetic radiation is in what region of the electromagnet…
Visible
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325 nm electromagnetic radiation is in what region of the electromagnet…
Ultraviolet
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question 10 which of the following is incorrect regarding environmental…
Alkyl - lead is a fuel additive that is not banned for use in passenger automobiles.
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13. for a periodic wave, the displacement from the equilibrium point to…
B. Amplitude
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13. a space probe traveling in space has no air around it. which type o…
Radiation is the type of heat transfer that allows the space probe's surface to get hot from the Sun. Conduction does not work because there is no direct physical contact (the Sun…
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question 8 ciguatera poisoning is the result of bioaccumulation of a to…
True
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question 7 which of the of the following resulted in beach closures in …
Saxotoxin
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question 6 which of the following statements is incorrect? ○ histamine …
Algae requires warm water to produce toxins.
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question #1 lydia recently opened her own dog walking business. to jump…
Traditional Tools
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12. a string with a mass per unit length of 1.5 g/m is put under a tens…
A. \(0.26\ m\)
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question 4 which of the following is incorrect regarding scombroid? cau…
C. Can be destroyed by cooking
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question 3 2 pts which of the following is incorrect regarding algae to…
Ciguatera toxin is linked to consumption of contaminated shellfish.
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question 2 which of the following dangerous toxins results from microbi…
Methylmercury
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question 1 2 pts which of the following statements is true regarding to…
Claviceps purpureae produces a toxin that results in hallucinations.
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12. a string with a mass per unit length of 1.5 g/m is put under a tens…
A. \(132\space Hz,264\space Hz\) and \(396\space Hz\)
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excerpt from chapter 2 in the secret of the yellow death by suzanne jur…
- Bacillus icteroides - C. Yellow fever is caused by a particular bacteria, Bacillus icteroides. - Contaminated material - B. Yellow fever spreads through items used by patients. …
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9. a person sits by a campfire and feels warm. what type of heat transf…
Radiation. # 10.
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10. a string of mass m is under tension, and the speed of a wave in the…
C. \(\frac{v}{\sqrt{2}}\) ### Question 11
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question 8 of 10 which of the following was an outcome of the enlighten…
D. The study of behavioral patterns in society
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by rearranging newtons second law, we find that the net force acting on…
A. the net force acting on each object \((\sum\vec{F})\), B. the amount of time that each object experiences a force \((\Delta t)\), C. the change in each object's momentum \((\De…
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4. why does metal feel colder than wood, even though both are at room t…
- **Question 4**: b) Metal conducts heat away from your hand faster. - **Question 5**: c) Radiation - **Question 6**: Heat is the transfer of thermal energy, while temperature is …
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a system consists of object x and object y. the two objects interact wi…
B. \(X\) and \(Y\) experience forces from each other. \(X\) and/or \(Y\) also experience forces from at least one other object. D. \(X\) and \(Y\) transfer momentum to and from ea…
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part a - vocabulary term definition 1. heat a. heat transfer by electro…
## Part A 1. c 2. e 3. d 4. b 5. a ## Part B 1. a) Conduction 2. b) Convection 3. c) Radiation
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before data is entered into the regression calculator, some data may be…
The data pair \((0,100)\) is an outlier. It represents a person scoring \(100\) with \(0\) hours of sleep. If included, the trend line would not describe the data well.
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drag and match each equation to the step that produces it. step resulti…
- Multiply both sides by \(m\): \( \sum\vec{F}=m\frac{\Delta\vec{v}}{\Delta t}\) - Substitute using \( \vec{a}=\frac{\Delta\vec{v}}{\Delta t}\): \( \sum\vec{F}=m\vec{a}\) - Move t…
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this equation can be rearranged to a different form which includes mome…
The momentum of the object is changing.
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part 4 - paragraph comprehension instructions the lens of the eye focus…
B. focus light.
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impulse qs name alex gonzalez period 15/ explain what the equivalence (…
The equation \(F\cdot\Delta t=\Delta p\) (assuming it's a mis - writing of the impulse - momentum theorem) represents that the impulse (product of force and time interval) acting …
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explain what the equivalence ( mathrm{f} cdot delta mathrm{t}=mathrm{f}…
a. \(20\space N\cdot s\) b. \(5\space s\) c. \(400\space N\) d. \(0.765\space N\cdot s\) e. \(250\space N\) f. \(3\space s\)
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question 5 (02.04 lc) mark wants to join an in - school sport that migh…
Baseball
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(02.04 lc) tom currently plays hockey during the winter months. what si…
Lacrosse
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(02.04 lc) a mouthpiece would be the most appropriate safety equipment …
lacrosse
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(02.04 lc) the ability to perform a combination of movements using diff…
coordination
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this diagnostic test can detect the presence of an antigen or antibody …
- First question: ELISA - Second question: polio
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read the excerpt from obamas second inaugural address. but we have alwa…
as a substantiated opinion
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read the excerpts from part 3 of \an occurrence at owl creek bridge\. t…
The cannon continually pushes Farquhar to continue his journey through his dream and back to reality.