Physique
Cinématique, forces, électricité et raisonnement par équations.
-
a water tank in the shape of a cylinder contains 54,000 gallons of wate…
90000
-
31. what is absolute zero on the fahrenheit scale? a. $0\\ ^{circ}\\tex…
d. $-459.67\ ^\circ\text{F}$
-
22. what is the preferred temperature scale used in scientific laborato…
22. c. kelvin 23. b. liquid 24. d. radiation 25. d. wood 26. d. Water boiling in a pot 27. a. J/kg 28. b. water 29. c. melting and vaporization 30. d. Condensation is on the insid…
-
18. how much energy would it take to heat 1.00 kg of ice at 0 °c to wat…
d. 397 kJ
-
which microscope is often used to view metal surfaces? scanning tunneli…
scanning electron microscope
-
problems 11.1 temperature and thermal energy 14. what is 35.0 °f in kel…
d. 274.8 K
-
Question was provided via image upload.
A. How are the continents moving today?
-
pregunta 1 if the temperature of a substance is low, then we know that:…
1. The average kinetic energy of particles is also low. 2. The particles of the substance initially had high Kinetic Energy. 3. Energy always flows in a direction from warmer to c…
-
analyze the statement: \as the frequency of an electromagnetic wave inc…
B. The statement is incorrect because energy increases as frequency increases
-
design an experiment to demonstrate how different types of electromagne…
D. Infrared waves and a glass of water
-
a radio station broadcasts at a frequency of $2.5 \\times 10^8$ hz. ano…
D. The \( 9.5 \times 10^{4}\, \text{Hz} \) wave carries more energy because it has a higher frequency
-
practice alan is making a cardboard structure for his children to play …
D. 180 ft²
-
analyze the relationship between wavelength and frequency in the electr…
B. Wave X has half the frequency of Wave Y
-
10. a goldsmith has a gold bar with a volume of 200 cm³. if the density…
$3860\ \text{g}$
-
9. a liquid has a density of 0.8 g/cm³. if you pour 500 cm³ of this liq…
$400\ \text{g}$
-
practice paul unfolded a pyramid container and wanted to determine the …
D. \( 28 \, \text{ft}^2 \)
-
8. a block of wood has a volume of 200 cm³ and a mass of 100 grams. wil…
Yes, the block of wood will float in water. Its density is $0.5\ \text{g/cm}^3$, which is less than the density of water ($1\ \text{g/cm}^3$), so it meets the condition for floati…
-
7. a block of ice has a density of 0.92 g/cm³ and a mass of 460 grams. …
$500\ \text{cm}^3$
-
6. an apple has a mass of 150 grams and a volume of 200 cm³. what is th…
$0.75\ \text{g/cm}^3$
-
30. i will perform only those activities that have been authorized by t…
30. b) True 31. a) True 32. a) False 33. c) All of the above 34. c) Microscope 35. b) Ruler 36. c) Thermometer 37. a) Triple beam balance 38. a) Pipe stem triangle 39. c) get a sn…
-
5. a small plastic toy has a mass of 50 grams and occupies a volume of …
$2\ \text{g/cm}^3$
-
3. which of the following statements about density is correct? a) incre…
b) Decreasing the volume of an object will increase its density if the mass remains constant.
-
2 true or false: if two objects have the same volume but different mass…
True
-
Question was provided via image upload.
B. Laws passed in the mid-1500s allowed Africans but not indigenous peoples to be forced into labor, though in practice both groups continued to be treated poorly by Spanish colon…
-
which hold water until it is needed? ○ dams ○ reservoirs ○ aqueducts ○ …
A. dams B. reservoirs
-
which statement primarily appeals to pathos, or emotion, to support the…
CEO compensation is so appallingly high—many orders of magnitude higher than that of the average worker—that it is unthinkable not to impose higher taxes on executive pay.
-
the scale for each line is labeled below the line. for each line, you a…
1. For 1 pound: Click the first box (leftmost, between 0 and 1 kg) 2. For 24 oz: Click the third box (between 1 lb and 2 lb) 3. For 1 kg: Click the third box (between 2 lb and 3 l…
-
find the volume of this triangular prism. be sure to include the correc…
$216$ cubic centimeters (or $216 \, \text{cm}^3$)
-
which statement primarily appeals to pathos, or emotion, to support the…
Some of the worst atrocities of the twentieth century were brought about by societies that demanded collectivist thinking and action.
-
final exam - attempt 1/12 exam is not timed leave exam question 14 out …
Flu deaths are highest in older people.
-
multiple-choice question what was the name of the steel helmet used by …
The Brodie Helmet
-
the graph in the ( h )-( d )-plane shows the diameter, ( d ), in centim…
A. The cactus has a diameter of 28 cm at midnight.
-
select the correct answer what is the effect of the structure in the es…
B. The stream - of - consciousness narration allows a more intimate connection to the reader
-
select the correct answer why are prefixes often added to si units? a. …
B. to communicate very large or small measurements
-
which diagram best represents the forces acting on the box resting on t…
b. (4)
-
drag and drop the correct choice into the drop areas on the image above…
1. exosphere 2. thermosphere 3. ionosphere 4. mesosphere 5. stratosphere 6. ozonosphere 7. troposphere
-
select the correct answer. which probing question lies within the scope…
B. Does increasing the saliness of ocean water affect the speed of sound in the water?
-
what is the relative humidity when the dry - bulb temperature is 16°c a…
A. 90%
-
informative introduction? turbulence is a normal part of air travel and…
The correct option is: "Imagine riding a roller coaster in the sky - that's what turbulence can feel like on an airplane."
-
as commander in chief of the army and navy i have directed that all mea…
After the Pearl Harbor attack, the American attitude became highly unified and resolute. The nation was determined to defend itself, achieve absolute victory over the aggressor, a…
-
multiple-choice question the answers are as the angle increases from 45…
The correct option is: - as the angle increases from 45 degrees to 60 degrees, the horizontal distance decreases, and the time in the air increases.
-
17. what is the relative humidity when the dry - bulb temperature is 16…
A. 90%
-
4.3 ground launched projectile morgan mcmiflen example shall is thrown …
1.53 s (corresponding to the option "1.53 s")
-
residue of cleaning bleach on food 4. list the big 6 foodborne illnesse…
The Big 6 Foodborne illnesses are: 1. Norovirus 2. Salmonella Typhi 3. Shigella spp. 4. Shiga - toxin - producing Escherichia coli (e.g., E. coli O157:H7) 5. Hepatitis A 6. Lister…
-
type the correct answer in the box. is the use of reliable knowledge fo…
To solve this, we analyze the definitions: 1. For the first blank ("is the use of reliable knowledge for a practical purpose"): The term is **Technology** (as technology applies s…
-
16. by which process are clouds, dew, and fog formed? condensation prec…
A. Condensation
-
15. the two properties that change with altitude are and .
air pressure and temperature
-
14. which list shows atmospheric layers in the correct order upward fro…
B. troposphere, stratosphere, mesosphere, thermosphere (assuming the second option is labeled B; if the original labels were different, adjust the identifier, but based on the ord…
-
the attack yesterday on the hawaiian islands has caused severe damage t…
The attack on Pearl Harbor was part of Japan's surprise offensive across the Pacific during World War II (specifically, Japan's plan to expand its empire and strike Allied forces/…
-
13. the coldest layer of the atmosphere. troposphere stratosphere therm…
D. mesosphere
-
use the document below to help you answer question 13. worcester vs. ge…
The Supreme Court ruled that the Cherokee Nation is a sovereign (distinct) community with its own territory, Georgia's laws have no force within Cherokee territory, and Georgia's …
-
12. which statement best describes the relationship between relative hu…
C. Relative humidity decreases as air temperature increases.
-
c. what is the probability that at least one of the surgeries is succes…
\( 1 - P(\text{all surgeries fail}) \) (or a numerical value like \( 0.96 \) with specific inputs)
-
what were the benefits of kennedy delivering this message in a speech r…
- Benefits of speech over writing: A speech allows for immediate emotional engagement via vocal tone, pacing, and emphasis. It can create a sense of unity and urgency in real - ti…
-
2. when should a worker wash their hands? (at least 3 examples)
- Before handling food. - After using the restroom. - After handling raw materials (e.g., raw meat in food - related work) or after coughing/sneezing or after touching dirty surfa…
-
3. explain what unit is used to measure protein?
Common units for measuring protein include: - Grams (g), milligrams (mg), micrograms (μg) for total mass (used in nutrition, bulk samples) - Milligrams per milliliter ($\text{mg/m…
-
10. ozone is a special form of oxygen. unlike the oxygen we breathe, wh…
First blank: three; Second blank: ultraviolet (UV) radiation
-
9. what is the outermost layer of the atmosphere? type a response
The outermost layer of the atmosphere is the exosphere.
-
what were the benefits of kennedy delivering this message in a speech r…
Benefits of speech: 1. Uses vocal inflection/tone for emotion/engagement. 2. Immediate live audience connection (unity/urgency). Effective spoken parts: Rhetorical - device - rich…
-
glossary coalition an alliance of groups supporting a political party o…
Franklin Delano Roosevelt ### Question 2
-
7. what do the courts do?
Courts interpret laws, resolve legal disputes (civil, criminal, etc.), uphold rights, enforce obligations, make rulings, and provide a legal forum for claims.
-
2. if you never wash your car’s windows inside and out, what could happ…
B. You could get pulled over
-
1. what is the best way to ensure properly cleaned windows? regularly u…
The correct option is: Clean them inside & out occasionally
-
8. the lowest layer of the atmosphere has undergone a large increase in…
Troposphere
-
yesterday, december 7, 1941—a date which will live in infamy—the united…
The Japanese attack was unexpected and shameful as the US was at peace with Japan (negotiating diplomatically), yet Japan launched a surprise, pre - planned military strike (Pearl…
-
7. an air temperature of -75°c exists in which layer? type a response
The air temperature of \(-75^\circ\text{C}\) exists in the **mesosphere** (a layer of Earth’s atmosphere). In the mesosphere (extending from ~50–85 km above Earth’s surface), temp…
-
2. how many horns does the typical car have? 1 2 3
B. 2
-
7. an air temperature of -75°c exists in which layer? type a response
The air temperature of \(-75^\circ\text{C}\) exists in the **mesosphere** (a layer of Earth’s atmosphere, located above the stratosphere and below the thermosphere, where temperat…
-
6. match the type of cloud to the picture of the cloud. draggable item …
- Stratus → The third picture (with the more uniform, grayish cloud cover) - Cumulus → The second picture (with the puffy white cloud) - Cirrus → The first picture (with the wispy…
-
______ are routed from the internet backbone through one or more networ…
Packets
-
which statement below best describes a free body diagram? a a diagram o…
a. A diagram of an object and all of the forces acting upon it
-
6. match the type of cloud to the picture of the cloud. draggable item …
- Stratus → Third image (with layered, grayish clouds) - Cumulus → Second image (fluffy, white cotton - ball - like clouds) - Cirrus → First image (thin, wispy clouds)
-
5. which statement best explains how atmospheric dust particles influen…
B. Dust particles provide surfaces on which water vapor can condense.
-
4. in which atmospheric layer is the most water vapor found? mesosphere…
D. troposphere
-
3. a dry-bulb temperature of 30°c and a wet-bulb temperature of 29°c we…
B. Relative humidity is 93% with a good chance of rain.
-
using google, look up the answer to the following question regarding el…
Temperatures decrease with increasing altitude because: 1. Rising hot air expands as atmospheric pressure drops, and this adiabatic expansion cools the air. 2. The lower atmospher…
-
3. why is it important to keep both hands on the wheel? it allows the b…
A. It allows the best control for sudden emergency maneuvering
-
2. which of these describes a grasp that reduces the chance of injury f…
Hands in a balanced position; thumbs flat against the wheel
-
question 27 select all the possible direct negative outcomes of fishery…
A. Decreased biodiversity B. Increase in greenhouse gas emissions C. Inbreeding depression D. Negative impact on economy
-
please take a few minutes and answer the questions below to move on to …
A. You won't have good control in an emergency maneuver
-
bottom trawling is harmful for all of the following reasons except: a. …
B. Adds nitrates to the water
-
tommy pushes his truck with 8 n of force to the left along the carpet. …
2 N to the left
-
guiding question what makes a magnet stick to your refrigerator? phenom…
B. The magnet appears to push and pull the car without touching it ### Question 2 (assuming the visible option B is "The magnet’s direction changes")
-
a glider traveling 25 mph (40.23 km/h) is affected by an outside force.…
The option with the 5 N force in the same direction as the glider’s 25 mph motion (second diagram from the top).
-
°c = (°f - 32) ÷ (9/5) convert fahrenheit to celsius chart with columns…
To solve this, we analyze each location and use the Fahrenheit - Celsius conversion formula \(^\circ C=(^\circ F - 32)\div\frac{9}{5}\) (or \(^\circ C=\frac{5}{9}(^\circ F - 32)\)…
-
4. what is a reason that some instructors no longer recommend holding t…
C. Hands can fly to the face if the airbag goes off, causing injury
-
1. the greatest atmospheric pressure exists in which layer? type a resp…
The greatest atmospheric pressure exists in the troposphere.
-
a baseball player hits a home run. as the ball travels through the air,…
The wind will cause a positive acceleration on the ball.
-
13 multiple-choice question what does \aloofness mean? being emotionall…
being emotionally distant
-
the incoming mail server imap forces you to download email messages bef…
A. False
-
isabella kicks a soccer ball with 6 n of force along the grass. the bal…
It will accelerate away from Isabella's foot due to unbalanced forces.
-
who was douglas macarthur? he commanded the operation that helped defea…
C. He was the commander of U.S. operations in the Pacific.
-
jackrabbits are capable of reaching speeds up to 40 miles per hour. how…
59 feet per second (the option with "59 feet per second")
-
internet ________ are the rules that describe how clients and servers c…
protocols ### Second Question:
-
why is the battle of stalingrad considered the turning point in the war…
C. Hitler's advance on the Eastern Front was halted.
-
which statement about the status of world war ii at the close of 1942 i…
B. Germany dominated most of the European continent.
-
number of wire wraps into magnetic strengths number of coils wrapped ar…
s: - Independent Variable: Number of wire wraps (coils) around the core - Dependent Variable: Number of paperclips picked up (magnetic strength) - Possible Research Question: How …
-
the acceleration of an object due to gravity is 32 feet per second squa…
384 inches per second squared (the option corresponding to this value)
-
2. net force: forces are: balanced unbalanced object will: not accelera…
Net force: \( \boldsymbol{7} \) N Forces are: unbalanced Object will: accelerate
-
review: 1. accelerating objects are ______. choose the one most inclusi…
1. d. changing their velocity 2. Gas pedal, brake pedal, steering wheel 3. c. accelerating since there is a change in velocity 4. c. tangent to the circle, inwards 5. - Point A: V…