Physik
Kinematik, Kraftanalyse, Elektrizität und Gleichungslogik.
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an object is moving in a circle at a constant speed. what is true about…
D. The object's velocity is changing.
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the heliocentric theory states that the center of the universe is earth…
B. the sun
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density = mass / volume the density of water = 1 g/ml because the densi…
| Density | Mass | Volume | | ---- | ---- | ---- | | 1 g/mL | 20 g | 20 mL | | 1 g/mL | 15 g | 15 mL | | 4 g/mL | 100 g | 25 mL | | 2 g/mL | 10 g | 5 mL | | 3 g/mL | 3 g | 1 mL |
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consider a paragraph that begins with the topic sentence: climate chang…
1. In conclusion, the rising sea levels, increased storm intensity, and coastal erosion demonstrate the serious threats climate change poses to these vulnerable areas. 2. The topi…
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exit ticket - october 10 (progressive politics) the excerpt below is fr…
B. He filed lawsuits to break up "bad trusts."
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how did barometers advance science? they allowed scientists to study ob…
They allowed scientists to measure pressure.
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who discovered the three laws of planetary motion? nicolas copernicus g…
C. Johannes Kepler
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which describes a difference between robert boyle and isaac newton? boy…
Boyle discovered the relationship between pressure and gas volumes, while Newton discovered the law of gravity.
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the first step in the scientific method is to test with an experiment. …
form a hypothesis
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scientists in ancient greece believed that the study of science was con…
everything in the world could be explained by logic and reason
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why did many scientists reject the copernican model when it was publish…
It was a radical change in people's understanding of the universe and Earth's place in it.
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question 1 - 1 a local water treatment plant has recently identified ch…
data from previous investigations linking cholera to negative long term health effects
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directions: read the passage. then, answer the questions that follow. h…
1. The writer's claim is that hybrid cars are popular due to their fuel - efficiency (less gas use and longer travel distances between fill - ups, with more than triple the gas mi…
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question 1 - 1 a public - health official has recently identified chole…
A. Details on what is needed to treat the contaminated water C. Information on how cholera may cause long - term health effects
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7. what is the force that opposes motion of objects? for example, pushi…
Friction
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use the following scatterplot to answer questions 7, 8, and 9. kylie ga…
7. d. Day of the month 8. c. Amount of rainfall 9. d. Strong Negative correlation
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question 2 which of the following is a secondary reinforcer? a light st…
D. money
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5. speed with a specific direction is called... https://talkandcomment.…
A. Velocity
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an object is experiencing the forces shown at the right. each arrow rep…
We need to analyze the direction of the net - force acting on the object and match it with the direction of motion in the dot - diagrams. Since there is a downward force on the ob…
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4) electricity what is the voltage v of an electric circuit with a curr…
$8 + j$
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an object is experiencing the forces shown at the right. each arrow rep…
The dot - diagrams that show either an object starting from rest and moving downwards (dots starting to separate downwards), an object moving upwards and slowing down (dots gettin…
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what is the average speed of the object in this graph at 6 seconds? spe…
$2$ m/s
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1. what is the speed of a bike that travels 250m in 50 seconds? speed =…
5 m/s
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16. sketch a wave with low frequency and low energy.
Draw a smooth curve with widely - spaced peaks and troughs and small vertical displacements from the equilibrium position.
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17. in each of the following pairs, circle the form of radiation with t…
B. microwaves or radio waves 18.
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16. sketch a wave with low frequency and low energy. 15. label the diag…
Sketch a wave with a long wavelength (a large distance between consecutive crests or troughs), label the frequency as "low frequency", and label the energy as "low energy".
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16. sketch a wave with low frequency and low energy.
Sketch a wave with a long wavelength (large distance between consecutive crests or troughs) to represent a low - frequency and low - energy wave.
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remember that the change in a quantity is always the final amount minus…
The magnitude of the initial momentum of car #1 is 8000 kg·m/s and the direction is to the right.
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read the passage. creating lake - effect snow. situated on lake erie, t…
When cold air moves over the warmer water of a lake, lake - effect snow can be produced.
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directions: use the following electromagnetic spectrum (ems) 13. what t…
13. Infrared, Microwave, Radio waves 14. Gamma rays, X - rays
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how do you write 6,200,000 in scientific notation? × 10
$6.2\times10^{6}$
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read the passage. eat carrots, see better? carrots contain high amounts…
Because of a British media campaign, people thought that eating carrots would improve their night vision.
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chapter 1 science skills using scientific notation light travels throug…
1. $3.528\times 10^{7}$ liters 2. $8.03\times 10^{4}$ kg 3. 20 balloons
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other conversion factors 1.0 l = 1.057 qt 1.0 gal = 4.0 qt 1.0 lb = 16 …
21. $189.27\ L$ 22. $0.6\ g$ 23. $41.67\ ft$ 24. $1275.73\ g$ 25. $2000\ mL$ 26. $1132673.86\ cm^{3}$ 27. $352.23\ mg/L$ 28. $15456000\ ft^{3}/day$ 29. $11.11\ days$ 30. $9.56\ ft…
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the atom and atomic theory test study guide 1) explain in detail the ac…
11) Protons: 79, Neutrons: 118, Electrons: 79 12) Protons: 38, Neutrons: 50, Electrons: 38 13) Protons: 19, Neutrons: 20, Electrons: 19 14) Violet has higher energy (shorter wavel…
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chapter 1 science skills wordwise answer the questions by writing the c…
Hidden word: OBSERVATION Definition: The act of gathering information using the senses.
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where should you apply the thermal paste when installing a processor? b…
C. Between the heat sink and CPU
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you have installed two multi - gpu crossfire video cards in your comput…
Primary (first) video card
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neglecting friction and the mass of the spring, what is the change in h…
A. 0 m
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which of the following are common digital audio file types? (select thr…
WMA, WAV, AIFF
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multi - select: select all situations where work is done. a a teacher l…
B. An apple falls from a tree and hits Isaac Newton on his head, C. A box is pushed across a floor at constant speed, D. A box is pushed across a floor with an acceleration
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an employee complains that every time they turn their computer off, the…
The CMOS battery has failed.
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a student knows the amount of stored elastic potential energy in the sp…
D. the kinetic energy of the ball just as the spring is fully released
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question 95 of 99 which of the following accurately describes case fans…
- Create a pressurized system inside the case. - Pull cool air from the front and blow hot air out the back.
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student force (n) distance (m) time (s) w 10 4 5 x 5 8 8 y 5 12 10 z 1 …
A. students W and X
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7 four students took turns pushing a box. the table below shows the for…
A. students W and X
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neglecting friction, which of the following statements describes the re…
C. Increasing the kinetic energy of an object increases the amount of work needed to stop it.
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a cyclist and bicycle have a combined mass of 90 kg. starting from rest…
C. 6300 J
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bowling ball toward his face until it touches his nose. then he lets go…
B. Some kinetic energy is lost due to air resistance and friction.
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chapter 1 science skills 6. is the following sentence true or false? an…
6. True 7. a. Pie chart b. Table c. Bar graph d. Line graph 8. a. Scientific papers b. Presentations at scientific conferences 9. False 10. It helps ensure the quality, validity, …
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you have just finished upgrading your desktop systems cpu. after runnin…
Check the power supply voltage switch. Check the CPU fan power.
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scenario 1. maria is training for her first 5k race. she notices that a…
# Explicación: ## Paso 1: Identificar el componente El componente es la resistencia cardiopulmonar, ya que Maria quiere correr más tiempo sin detenerse y su fatiga y falta de alie…
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3 what is the ke of a 22 kg mass moving at 5 m/s? a 110 joules b 550 jo…
D. 275 joules
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question 91 of 99 which of the following connectors provides additional…
Identify the 4 - pin connector among the options (description of the 4 - pin connector's appearance can help in visual identification from the given pictures). Without seeing the …
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scenario 1: maria is training for her first 5k race. she notices that a…
- Componente: Resistencia cardiopulmonar - Frecuencia: 3 - 5 veces a la semana - Intensidad: Moderada - Tiempo: Comenzar con 20 - 30 minutos y aumentar hasta 45 - 60 minutos - Tip…
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you are testing the power supply in a pc - system by measuring the volt…
Nothing, the power supply is working normally.
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2 select forms of kinetic energy a molecular motion b heat c a pendulum…
A. Molecular motion, B. Heat, D. Running
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1 potential energy is best defined as which of the following? a energy …
B. Stored Energy
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a 10 kg mass is lifted to 3 m. what is its weight? what is its potentia…
C. weight = 98 newtons, PE = 294 joules, Work = 294 joules
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question 88 of 99 you have just installed a new video card in an employ…
Download and install the latest driver from the video card manufacturer's website.
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chapter 1 science skills section 1.4 presenting scientific data (pages …
1. c, d 2. table 3. c 4. slope 5. a, b
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to improve system performance, you have overclocked a motherboard to ru…
Back off on the overclocking settings until the system runs in a stable manner.
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how much work is done using 20 n of force to move a box 27 meters? (wor…
C. 540 J
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question 85 of 99 which of the following will ensure optimal system coo…
- Bundle cables together and secure unused cables in the case - Remove obstructed ventilation that restricts air flow - Leave space between the case and any walls or obstructions
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400n of force is used to move a truck 20 meters. how much work was gene…
D. 8000 J
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a customer has brought a computer in to be repaired. they say that they…
Verify that speakers are plugged into the correct jack and are powered on. Verify that the volume isn't muted.
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1 is the percent of work put into a machine by the user (input work) th…
C. Efficiency
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you recently purchased a usb audio headset and connected it to a usb po…
Recording
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8. how is carbonic acid formed? 9. how does more carbon dioxide in the …
When more carbon dioxide in the air dissolves in the ocean, it reacts with water to form carbonic acid. Carbonic acid dissociates, increasing the concentration of hydrogen ions in…
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which statements are true of processor caches? (select two.) □ l3 is sh…
A. L3 is shared between all cores. E. L1 is typically unique to a processor core.
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question 81 of 99 which of the following statements are true regarding …
The wattage requirements for each individual circuit uses the formula $W = V\times A$; The watt rating indicates how much power can be supplied to various devices.
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you work at a computer repair store. you have just upgraded the process…
The CPU is not supported by the BIOS.
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to prevent an allergic reaction, why should you change your gloves befo…
To prevent an allergic reaction, why should you change your gloves before making food? - To avoid cross - contamination of allergens. Why use separate equipment for preparing food…
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question 78 of 99 a user has called to complain that his computer wont …
Download and install the latest BIOS driver from the manufacturer's website.
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question 77 of 99 which of the following components converts ac power t…
Power supply
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for a special project, you have been asked to recommend the lowest - pr…
Riser
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9. draw a ray diagram to show formation of an image in the example belo…
a) The image distance is $-\frac{4}{3}\ cm$ (negative sign indicates the image is formed in front of the mirror). b) The image height is $\frac{2}{3}\ cm$.
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you have a desktop computer that provides a 250 - watt power supply. yo…
Upgrade to a power supply that provides more watts.
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question 74 of 99 if you have a problem with your pc, you have determin…
Create a backup of the hard - disk in the event of a failure. Download the flash utility or tool from the manufacturer's website.
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you have overclocked the processor on your workstation to run at a high…
Upgrade the workstation cooling device.
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question 72 of 99 which of the following bus card slot types is primari…
PCIe x16
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you have a computer with a dual - core 64 - bit processor that uses the…
D. Install the application normally.
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question 70 of 99 time spent 00:34:20 of 01:30:00 you are building a hi…
The 8 - pin EPS12V connector provides four lines of 12 V power to the CPU.
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question 68 of 99 you are installing a high - end pcie x16 video card i…
Connect a 6 - or 8 - pin power connector to the video card.
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which of the following expansion slots are most commonly used for video…
D. PCIe
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what is the name for the routine that tests the motherboard, memory, di…
POST
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your company relocated you from the united states to their united kingd…
Purchase a voltage converter and plug your computer into the converter box.
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brian is a new employee on the development team. as part of his job, he…
Overcheck the processor.
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the sound card in your new windows workstation includes a connector (se…
D. Toshiba Link (TOSLINK)
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you have just purchased a sound card with an hdmi port. from the illust…
2. The second port in the illustration.
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you work for a company that provides technical support for customers. o…
Resolution
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question 58 of 99 which of the following components is an example of fi…
A. BIOS/UEFI
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4) to create a desired concentration, we must have 4mg substance for ev…
$\frac{20}{3}$ mg or approximately $6.67$ mg
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question 57 of 99 what is the correct order for installing a processor …
CPU, thermal paste, heat sink, fan
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you want to enable the execute disable bit (edb) setting in your bios/u…
C. The processor must be EDB - capable. E. The motherboard must support EDB.
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which of the following motherboard power connectors typically connect d…
A. 4 - pin CPU power B. 24 - pin motherboard power
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you have a computer system with an intel core i3 processor that operate…
Read the motherboard documentation to identify which processors are supported.
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2) for a 5 in 12 dilution, what is the ratio of serum to saline? what i…
The ratio of serum to saline is $\frac{5}{7}$. The ratio of saline to total volume is $\frac{7}{12}$.
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match each video card type on the left with the appropriate characteris…
Dedicated video cards: Are installed in an expansion slot on the motherboard; Have a GPU and a dedicated high - speed video memory bank; Are more powerful and more expensive. Inte…
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which of the following processor sizes consumes the least amount of pow…
32 nm